fcm speciale: python, volume 2

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f u l l c i r c l e m a g a z i n e n . 3 1

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i n d i c e ^

f u l l c i r c l e

P R O G R A M M A R E

I N P Y T H O N

V O L U M E 2

L A R I V I S T A I N D I P E N D E N T E P E R L A C O M U N I T À L I N U X U B U N T U

E D I Z I O N E S P E C I A L E S E R I E P R O G R A M M A Z I O N E

F u l l C i r c l e M a g a z i n e n o n è a f f i l i a t a n é s o s t e n u t a d a C a n o n i c a l L t d .

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F u l l C i r c l e

L A R I V I S T A I N D I P E N D E N T E P E R L A C O M U N I T À L I N U X U B U N T U

C o s ' è F u l l C i r c l e

F u l l C i r c l e è u n a r i v i s t a g r a t u i t a e

i n d i p e n d e n t e , d e d i c a t a a l l a f a m i g l i a

U b u n t u d e i s i s t e m i o p e r a t i v i L i n u x .

O g n i m e s e p u b b l i c a u t i l i a r t i c o l i

t e c n i c i e a r t i c o l i i n v i a t i d a i l e t t o r i .

F u l l C i r c l e h a a n c h e u n p o d c a s t d i

s u p p o r t o , i l F u l l C i r c l e P o d c a s t , c o n g l i

s t e s s i a r g o m e n t i d e l l a r i v i s t a e a l t r e

i n t e r e s s a n t i n o t i z i e .

S i p r e g a d i n o t a r e c h e q u e s t a

e d i z i o n e s p e c i a l e v i e n e f o r n i t a s e n z a

a l c u n a g a r a n z i a : n é c h i h a c o n t r i b u i t o

n é l a r i v i s t a F u l l C i r c l e h a n n o a l c u n a

r e s p o n s a b i l i t à c i r c a p e r d i t e d i d a t i o

d a n n i c h e p o s s a n o d e r i v a r e a i

c o m p u t e r o a l l e a p p a r e c c h i a t u r e d e i

l e t t o r i d a l l ' a p p l i c a z i o n e d i q u a n t o

p u b b l i c a t o .

C o m e c o n t a t t a r c i

S i t o w e b :

h t t p : / / w w w . f u l l c i r c l e m a g a z i n e . o r g /

F o r u m :

h t t p : / / u b u n t u f o r u m s . o r g / f o r u m d i s p l

a y . p h p ? f = 2 7 0

I R C :

# f u l l c i r c l e m a g a z i n e s u

c h a t . f r e e n o d e . n e t

G r u p p o e d i t o r i a l e

C a p o r e d a t t o r e : R o n n i e T u c k e r

( a k a : R o n n i e T u c k e r )

r o n n i e @ f u l l c i r c l e m a g a z i n e . o r g

W e b m a s t e r : R o b K e r f i a

( a k a : a d m i n / l i n u x g e e k e r y -

a d m i n @ f u l l c i r c l e m a g a z i n e . o r g

P o d c a s t e r : R o b i n C a t l i n g

( a k a R o b i n C a t l i n g )

p o d c a s t @ f u l l c i r c l e m a g a z i n e . o r g

M a n a g e r d e l l e c o m u n i c a z i o n i :

R o b e r t C l i p s h a m

( a k a : m r m o n d a y ) -

m r m o n d a y @ f u l l c i r c l e m a g a z i n e . o r g

E c c o a v o i u n a l t r o S p e c i a l e m o n o t e m a t i c o !

C o m e r i c h i e s t o d a i n o s t r i l e t t o r i , s t i a m o a s s e m b l a n d o i n e d i z i o n i d e d i c a t e

a l c u n i d e g l i a r t i c o l i p u b b l i c a t i i n s e r i e .

Q u e l l a c h e a v e t e d a v a n t i è l a r i s t a m p a d e l l a s e r i e P r o g r a m m a r e i n P y t h o n ,

p a r t i 9 - 1 6 , p u b b l i c a t a n e i n u m e r i 3 5 - 4 2 : n i e n t e d i s p e c i a l e , g i u s t o q u e l l o c h e

a b b i a m o g i à p u b b l i c a t o .

V i c h i e d i a m o , p e r ò , d i b a d a r e a l l a d a t a d i p u b b l i c a z i o n e : l e v e r s i o n i a t t u a l i d i

h a r d w a r e e s o f t w a r e p o t r e b b e r o e s s e r e d i v e r s e r i s p e t t o a d a l l o r a .

C o n t r o l l a t e i l v o s t r o h a r d w a r e e i l v o s t r o s o f t w a r e p r i m a d i p r o v a r e q u a n t o

d e s c r i t t o n e l l e g u i d e d i q u e s t e e d i z i o n i s p e c i a l i . P o t r e s t e a v e r e v e r s i o n i p i ù

r e c e n t i d e l s o f t w a r e i n s t a l l a t o o d i s p o n i b i l e n e i r e p o s i t o r y d e l l e v o s t r e

d i s t r i b u z i o n i .

B u o n d i v e r t i m e n t o !

F u l l C i r c l e M a g a z i n e

G l i a r t i c o l i c o n t e n u t i i n q u e s t a r i v i s t a s o n o s t a t i r i l a s c i a t i s o t t o l a l i c e n z a C r e a t i v e C o m m o n s A t t r i b u z i o n e - N o n c o m m e r c i a l e - C o n d i v i d i a l l o s t e s s o m o d o

3 . 0 . C i ò s i g n i f i c a c h e p o t e t e a d a t t a r e , c o p i a r e , d i s t r i b u i r e e i n v i a r e g l i a r t i c o l i m a s o l o s o t t o l e s e g u e n t i c o n d i z i o n i : d o v e t e a t t r i b u i r e i l l a v o r o a l l ' a u t o r e

o r i g i n a l e i n u n a q u a l c h e f o r m a ( a l m e n o u n n o m e , u n ' e m a i l o u n i n d i r i z z o I n t e r n e t ) e a q u e s t a r i v i s t a c o l s u o n o m e ( " F u l l C i r c l e M a g a z i n e " ) e c o n s u o

i n d i r i z z o I n t e r n e t w w w . f u l l c i r c l e m a g a z i n e . o r g ( m a n o n a t t r i b u i r e i l / g l i a r t i c o l o / i i n a l c u n m o d o c h e l a s c i i n t e n d e r e c h e g l i a u t o r i e l a r i v i s t a a b b i a n o e s p l i c i t a m e n t e a u t o r i z z a t o v o i

o l ' u s o c h e f a t e d e l l ' o p e r a ) . S e a l t e r a t e , t r a s f o r m a t e o c r e a t e u n ' o p e r a s u q u e s t o l a v o r o d o v e t e d i s t r i b u i r e i l l a v o r o r i s u l t a n t e c o n l a s t e s s a l i c e n z a o u n a s i m i l e o c o m p a t i b i l e .

F u l l C i r c l e m a g a z i n e è c o m p l e t a m e n t e i n d i p e n d e n t e d a C a n o n i c a l , l o s p o n s o r d e i p r o g e t t i d i U b u n t u , e i p u n t i d i v i s t a e l e o p i n i o n i e s p r e s s e n e l l a r i v i s t a n o n

s o n o i n a l c u n m o d o d a a t t r i b u i r e o a p p r o v a t i d a C a n o n i c a l .

http://creativecommons.org/licenses/by-sa/3.0/

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from mutagen.mp3 import MP3

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import os

from os.path importjoin,getsize,exists

import sys

import apsw

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def MakeDataBase():pass

def S2HMS(t):pass

def WalkThePath(musicpath):passdef error(message):

passdef main():

passdef usage():

pass

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if __name__ == '__main__': main()

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def error(message):print >> sys.stderr,

str(message)

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def usage(): message = (

'==============================================\n''mCat - Finds all *.mp3 files in a given folder (and sub-folders),\n''\tread the id3 tags, and write that information to a SQLite database.\n\n'

'Usage:\n''\t{0} <foldername>\n''\t WHERE <foldername> is the path to your MP3 files.\n\n''Author: Greg Walters\n''For Full Circle Magazine\n''==============================================\n').format(sys.argv[0])

error(message)sys.exit(1)





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def main():global connectionglobal cursor#----------------------------------------------if len(sys.argv) != 2:

usage()else:

StartFolder = sys.argv[1]

if not exists(StartFolder): # From os.pathprint('Path {0} does not seem to

exist...Exiting.').format(StartFolder)sys.exit(1)

else:print('About to work {0}

folder(s):').format(StartFolder)# Create the connection and cursor.connection=apsw.Connection("mCat.db3")cursor=connection.cursor()# Make the database if it doesn't exist...

MakeDataBase()

# Do the actual work... WalkThePath(StartFolder)# Close the cursor and connection...cursor.close()connection.close()# Let us know we are finished...print("FINISHED!")

http://pastebin.com/CegsAXjW



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http://pastebin.com/rFf4Gm7E

http://slidepdf.com/reader/full/fcm-speciale-python-volume-2 7/42gvmm#djsdmf#nbhb{jof#$47 lqglfh#a

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importelementtree.ElementTree as ET

tree =ET.parse('xmlsample1.xml')

ET.dump(tree)

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<people><person>

<firstname>Samantha</firstname><lastname>Pharoh</lastname><gender>Female</gender><address>123 Main St.</address><city>Denver</city><state>Colorado</state>

</person><person><firstname>Steve</firstname><lastname>Levon</lastname><gender>Male</gender><address>332120 Arapahoe Blvd.</address><city>Denver</city><state>Colorado</state>

</person></people>

/usr/bin/python -u"/home/greg/Documents/articles/xml/reader1.py"

<people><person>

<firstname>Samantha</firstname><lastname>Pharoh</lastname><gender>Female</gender><address>123 Main St.</address><city>Denver</city><state>Colorado</state>

</person><person>

<firstname>Steve</firstname><lastname>Levon</lastname><gender>Male</gender><address>332120 Arapahoe

Blvd.</address><city>Denver</city><state>Colorado</state>

</person></people>

SURJUDPPDUH#LQ#S\WKRQ#0#SDUWH#43

http://effbot.org/downloads/#elementtree

frq#lo#vhjxhqwh=


tree =ET.parse('xmlsample1.xml')

person =

tree.findall('.//person')

for p in person:for dat in p:

print "Element: %s -Data: %s" %(dat.tag,dat.text)

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/usr/bin/python -u

"/home/greg/Documents/articles/xml/reader1.py"

Element: firstname - Data:SamanthaElement: lastname - Data:PharohElement: gender - Data: FemaleElement: address - Data: 123

Main St.Element: city - Data: DenverElement: state - Data:ColoradoElement: firstname - Data:SteveElement: lastname - Data:LevonElement: gender - Data: MaleElement: address - Data:332120 Arapahoe Blvd.Element: city - Data: DenverElement: state - Data:Colorado

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<?xml version="1.0" encoding="ISO-8859-1"?><loc version="1.0" src="NaviCache">

<waypoint><name id="N02CAC"><![CDATA[Take Goofy Pictures at Grapevine Lake by g_phillips

Open Cache: UnrestrictedCache Type: Normal

Cache Size: NormalDifficulty: 1.5Terrain : 2.0]]></name>

<coord lat="32.9890166666667" lon="-97.0728833333333" /><type>Geocache</type><link text="Cache Details">http://www.navicache.com/cgi-

bin/db/displaycache2.pl?CacheID=11436</link></waypoint>

</loc>Qdylfdfkh#iloh


http://www.geocaching.com/


http://navicache.com/

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tree = ET.parse('Cache.loc')

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w = tree.find('.//waypoint')

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for w1 in w:if w1.tag == "name":

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<nameid="N02CAC"><![CDATA[TakeGoofy Pictures at GrapevineLake by g_phillips

Open Cache: Unrestricted

Cache Type: Normal

Cache Size: Normal

Difficulty: 1.5

Terrain : 2.0]]></name>

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newstring =oldstring[startposition:endposition]

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if w1.keys():for name,value in

# Get text of cache name up to the phrase "Open Cache: "CacheName = w1.text[:w1.text.find("Open Cache: ")-1]# Get the text between "Open Cache: " and "Cache Type: "OpenCache = w1.text[w1.text.find("Open Cache:")+12:w1.text.find("Cache Type: ")-1]# More of the sameCacheType = w1.text[w1.text.find("Cache Type:")+12:w1.text.find("Cache Size: ")-1]CacheSize = w1.text[w1.text.find("Cache Size:")+12:w1.text.find("Difficulty: ")-1]Difficulty= w1.text[w1.text.find("Difficulty:")+12:w1.text.find("Terrain : ")-1]Terrain = w1.text[w1.text.find("Terrain : ")+12:]

w1.items():if name == 'id':

CacheID = value

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elif w1.tag == "coord":if w1.keys():

for name,value in w1.items():if name == "lat":

Lat = value

elif name == "lon":Lon = valueelif w1.tag == "type":

GType = w1.textelif w1.tag == "link":

if w1.keys():for name, value in w1.items():

Info = valueLink = w1.text

print "Cache Name: ",CacheName

print "Cache ID: ",CacheIDprint "Open Cache: ",OpenCacheprint "Cache Type: ",CacheTypeprint "Cache Size: ",CacheSizeprint "Difficulty: ", Difficultyprint "Terrain: ",Terrainprint "Lat: ",Latprint "Lon: ",Lonprint "GType: ",GTypeprint "Link: ",Link

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http://www.thedesignatedgeek.com/



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http://www.wunderground.com/


http://wiki.wunderground.com/index.php/API_-_XML


http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query=80013



http://api.wunderground.com/auto/wui/geo/ForecastXML/index.xml?query=80013









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from xml.etree importElementTree as ET

import urllib

import sys

import getopt

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""" w_currents.pyReturns current conditions, forecast and alerts for agiven zipcode from WeatherUnderground.com.Usage: python wonderground.py [options]Options:-h, --help Show this help-l, --location City,State to use-z, --zip Zipcode to use as location

Examples: w_currents.py -h (shows this help information) w_currents.py -z 80013 (uses the zip code 80013 aslocation)"""

class CurrentInfo:"""This routine retrieves the current condition xml datafrom WeatherUnderground.com

based off of the zip code or Airport Code...currently tested only with Zip Code and Airport codeFor location,if zip code use something like 80013 (no quotes)if airport use something like "KDEN" (use double-quotes)if city/state (US) use something like "Aurora,%20CO" or“Aurora,CO” (use double-quotes)if city/country, use something like "London,%20England"(use double-quotes)"""def getCurrents(self,debuglevel,Location):pass

def output(self):passdef DoIt(self,Location):pass

#=========================================# END OF CLASS CurrentInfo()#=========================================





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def DoIt(self,Location):

self.getCurrents(1,Location)

self.output()

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def usage():print __doc__ def main(argv):location = 80013try:opts, args = getopt.getopt(argv, "hz:l:", ["help=","zip=", "location="])except getopt.GetoptError:usage()

sys.exit(2)for opt, arg in opts:if opt in ("-h", "--help"):usage()sys.exit()elif opt in ("-l", "--location"):location = argelif opt in ("-z", "--zip"):location = argprint "Location = %s" % locationcurrents = CurrentInfo()currents.DoIt(location)

#============================================# Main loop#============================================if __name__ == "__main__":

main(sys.argv[1:])



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Dvvxphqgr#fkh#wxwwr#ixq}lrql/#lql}ldpr#d#fhufduh#l#qrvwul#wdj1#Od#sulpd#frvd#fkh#iduhpr#Ê#fhufduh#od#qrvwud#orfdolwÂ#frq#wuhh1ilqgdoo+%22ixoo%,1#Ulfrugdwh/#wuhh#Ê#o*rjjhwwr#dqdol}}dwr#uhvwlwxlwr#gd#hohphqwwuhh1#Lq#edvvr#Ê#prvwudwr#sduwh#gl#flÔ#fkh#ylhqh#ulwruqdwr#gdoo*DSL#gho#vlwr1

Txhvwd#Ê#od#qrvwud#sulpd#lvwdq}d#gho#wdj#?ixooA/#fkh#lq#txhvwr#fdvr#Ê#%Dxurud/#FR%1#Txhvwd#Ê#od#orfdolwÂ#fkh#yrjoldpr#xvduh1#Txlqgl#fhufkldpr#%revhuydwlrqbwlph%1#Udssuhvhqwd#lo#prphqwr#gl#uhjlvwud}lrqh#ghooh#dwwxdol#frqgl}lrql1#Frqwlqxldpr#fhufdqgr#wxwwl#l#gdwl#fkh#fl#lqwhuhvvdqr#0#xvdqgr#od#vwhvvd#phwrglfd1

Shu#ilqluh#fl#rffxsldpr#ghood#qrvwud#urxwlqh#gl#rxwsxw#fkh#Ê#prvwudwd#lq#dowr#d#vlqlvwud#qhood#sdjlqd#vhjxhqwh1

Txl#vhpsolfhphqwh#prvwuldpr#oh#yduldelol1

Txhvwr#Ê#wxwwr1#Xq#rxwsxw#g*hvhpslr#shu#lo#plr#frglfh#srvwdoh#frq#xq#ghexjohyho#vhwwdwr#d#4#Ê#prvwudwr#lq#edvvr#d#vlqlvwud#qhood#survvlpd#sdjlqd1

def getCurrents(self,debuglevel,Location):if debuglevel > 0:print "Location = %s" % Locationtry:CurrentConditions ='http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query=%s' % Locationurllib.socket.setdefaulttimeout(8)

usock = urllib.urlopen(CurrentConditions)tree = ET.parse(usock)usock.close()except:print 'ERROR - Current Conditions - Could not getinformation from server...'if debuglevel > 0:print Locationsys.exit(2)# Get Display Locationfor loc in tree.findall("//full"):self.location = loc.text

# Get Observation timefor tim in tree.findall("//observation_time"):self.obtime = tim.text# Get Current conditionsfor weather in tree.findall("//weather"):self.we = weather.text# Get Tempfor TempF in tree.findall("//temperature_string"):self.tmpB = TempF.text#Get Humidityfor hum in tree.findall("//relative_humidity"):self.relhum = hum.text

# Get Wind infofor windstring in tree.findall("//wind_string"):self.winds = windstring.text# Get Barometric Pressurefor pressure in tree.findall("//pressure_string"):self.baroB = pressure.text

jhwFxuuhqwv#urxwlqh

<display_location><full>Aurora, CO</full>

<city>Aurora</city><state>CO</state><state_name>Colorado</state_name><country>US</country><country_iso3166>US</country_iso3166><zip>80013</zip><latitude>39.65906525</latitude><longitude>-104.78105927</longitude><elevation>1706.00000000 ft</elevation></display_location>



http://docs.python.org/library/urllib.html

Vl#suhjd#gl#qrwduh#fkh#kr#vfhowr#gl#xvduh#l#wdj#fkh#lqfoxgrqr#l#ydorul#vld#lq#Idkuhqkhlw#fkh#Fhovlxv1#Vh#ghvlghudwh/#shu#hvhpslr/#ylvxdol}}duh#vror#l#ydorul#Fhovlxv#srwhwh#xvduh#lo#wdj#?whpsbfA#slxwwrvwr#fkh#?whpshudwxuhbvwulqjA1

O*lqwhur#frglfh#sxÔ#hvvhuh#vfdulfdwr#gd=#kwws=22sdvwhelq1frp27leMJp:7

Od#survvlpd#yrowd#fl#frqfhqwuhuhpr#vxood#sduwh#suhylvlrqdoh#ghooh#DSL1#Qho#iudwwhpsr/#exrq#glyhuwlphqwr$

def output(self):print 'Weather Information From Wunderground.com'print 'Weather info for %s ' % self.locationprint self.obtimeprint 'Current Weather - %s' % self.weprint 'Current Temp - %s' % self.tmpBprint 'Barometric Pressure - %s' % self.baroBprint 'Relative Humidity - %s' % self.relhum

print 'Winds %s' % self.winds

Location = 80013 Weather Information From Wunderground.com Weather info for Aurora, ColoradoLast Updated on May 3, 11:55 AM MDTCurrent Weather - Partly CloudyCurrent Temp - 57 F (14 C)Barometric Pressure - 29.92 in (1013 mb)Relative Humidity - 25%

Winds From the WNW at 10 MPHScript terminated.

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7

i n d i c e ^

KRZ0WRS c r i t t o d a G r e g W a l t e r s

Surjudppduh lq S|wkrq 0 Sduwh 45

V E D I A N C H E :

F C M # 2 7 - 3 7 - P y t h o n P a r t i 1 - 1 1

V A L I D O P E R :

C A T E G O R I E :

D I S P O S I T I V I :

G r a f i c a

S v i l u p p o I n t e r n e t

M / m e d i a

S i s t e m a

H D D

C D / D V D

U S B D r i v e L a p t o p

W i r e l e s s

N

e l l ' u l t i m a s e s s i o n e ,

a b b i a m o t r a t t a t o l ' A P I d i

w u n d e r g r o u n d e s c r i t t o

u n p o ' d i c o d i c e p e r

r i c a v a r e l e c o n d i z i o n i a t t u a l i .

Q u e s t a v o l t a c i o c c u p e r e m o d e l l a

p a r t e d e l l e A P I r i g u a r d a n t e l e

p r e v i s i o n i . S e n o n a v e t e a v u t o

m o d o d i d a r e u n ' o c c h i a t a a l l e

u l t i m e d u e p u n t a t e s u X M L , e d i n

p a r t i c o l a r e l ' u l t i m a , d o v r e s t e f a r l o

p r i m a d i p r o c e d e r e u l t e r i o r m e n t e .

C o s ì c o m e e s i s t e u n i n d i r i z z o

w e b p e r l e c o n d i z i o n i a t t u a l i , c e

n e è u n o p e r l e p r e v i s i o n i . E c c o i l

l i n k a l l a p a g i n a d e l l e p r e v i s i o n i

X M L :

h t t p : / / a p i . w u n d e r g r o u n d . c o m / a u t o

/ w u i / g e o / F o r e c a s t X M L / i n d e x . x m l ? q

u e r y = 8 0 0 1 3

C o m e a l s o l i t o , s o s t i t u i t e

' 8 0 0 1 3 ' c o n l a v o s t r a C i t t à / P a e s e ,

C i t t à / S t a t o o c o d i c e p o s t a l e .

P r o b a b i l m e n t e o t t e r r e t e c i r c a 6 0 0

r i g h e d i c o d i c e X M L . C ' è u n

e l e m e n t o r o o t c h i a m a t o ' f o r e c a s t '

e q u i n d i q u a t t r o s o t t o e l e m e n t i :

' t e r m s o f s e r v i c e ' , ' t x t _ f o r e c a s t ' ,

' s i m p l e f o r e c a s t ' a n d

' m o o n _ p h a s e ' . C i c o n c e n t r e r e m o

s u ' t x t _ f o r e c a s t ' e ' s i m p l e f o r e c a s t ' .

P o i c h é l ' u l t i m a v o l t a a b b i a m o

g i à t r a t t a t o d e l l e s e z i o n i u s a g e ,

m a i n e " i f _ _ n a m e _ _ " , q u e l l e l e

l a s c e r ò a f f r o n t a r e a v o i e c i

f o c a l i z z e r e m o s u l l e c h i c c h e d i c u i

a b b i a m o b i s o g n o q u e s t a v o l t a .

P o i c h é v i h o m o s t r a t o u n a

p o r z i o n e d i t x t _ f o r e c a s t , i n i z i a m o

d a q u i .

I n b a s s o è m o s t r a t a u n a

p i c c o l a p o r z i o n e d i t x t _ f o r e c a s t

p e r l a m i a z o n a .

D o p o l ' e l e m e n t o p r e c u r s o r e

t x t _ f o r e c a s t a b b i a m o l a d a t a , u n

e l e m e n t o " n u m b e r " , q u i n d i u n

e l e m e n t o c h i a m a t o f o r e c a s t d a y

c h e h a a s u a v o l t a d e i f i g l i c h e

i n c l u d o n o p e r i o d , i c o n , i c o n s , t i t l e

e q u a l c o s a c h i a m a t o f c t t e x t . . . e a

s e g u i r e u n a r i p e t i z i o n e d e l l o

s t e s s o . L a p r i m a c o s a c h e

n o t e r e t e i n t x t _ f o r e c a s t è c h e l a

d a t a n o n è u n a d a t a m a u n v a l o r e

t e m p o r a l e . S i t r a t t a d e l m o m e n t o

i n c u i è s t a t a f a t t a l a p r e v i s i o n e .

L ' e t i c h e t t a < n u m b e r > m o s t r a

q u a n t e p r e v i s i o n i s o n o p r e s e n t i

p e r l e p r o s s i m e 2 4 o r e . N o n

r i c o r d o d i a v e r v i s t o m a i u n v a l o r e

i n f e r i o r e a 2 . P e r c i a s c u n a

p r e v i s i o n e n e l l e 2 4 o r e

( < f o r e c a s t d a y > ) , a v r e t e u n

 n u m e r i c o , o p z i o n i

m u l t i p l e p e r l e i c o n e , u n ' o p z i o n e

p e r i l t i t o l o ( " T o d a y " , " T o n i g h t " ,

" T o m o r r o w " ) e d i l t e s t o r i a s s u n t i v o

d e l l a p r e v i s i o n e . Q u e s t a è

u n ' a n t e p r i m a r a p i d a d e l l a

p r e v i s i o n e , d i s o l i t o p e r l e

s u c c e s s i v e 1 2 o r e .

P r i m a d i i n i z i a r e a l a v o r a r e c o n

i l n o s t r o c o d i c e d o v r e m m o d a r e

<txt_forecast><date>3:31 PM MDT</date><number>2</number>−<forecastday>

<period>1</period><icon>nt_cloudy</icon>+<icons></icons><title>Tonight</title>−<fcttext>

Mostly cloudy with a 20percent chance of thunderstorms in the evening...thenpartly cloudy after midnight. Lows in the mid 40s.Southeast winds 10 to 15 mph shifting to the south after

midnight.</fcttext>

</forecastday>+<forecastday></forecastday>

</txt_forecast>

8

i n d i c e ^

SURJUDPPDUH LQ S\WKRQ 0 SDUWH 45

u n ' o c c h i a t a a l l a p o r z i o n e

< s i m p l e f o r e c a s t > d e l f i l e x m l c h e

è m o s t r a t o a d e s t r a .

C ' è u n ' e t i c h e t t a < f o r e c a s t d a y >

p e r c i a s c u n g i o r n o d e l p e r i o d o d i

p r e v i s i o n e , d i s o l i t o 6 g i o r n i

i n c l u s o q u e l l o a t t u a l e . A v e t e

i n f o r m a z i o n i s u l l a d a t a i n v a r i

f o r m a t i ( i o p e r s o n a l m e n t e

p r e f e r i s c o l ' e t i c h e t t a ) ,

t e m p e r a t u r e m a s s i m e e m i n i m e

p r e v i s t e s i a i n F a h r e n h e i t c h e

C e l s i u s , p r o i e z i o n e d e l l e c o n d i z i o n i

g e n e r a l i , v a r i e i c o n e , u n a i c o n a

d e l c i e l o ( c o n d i z i o n i d e l c i e l o a l l a

s t a z i o n e d i r i f e r i m e n t o ) , e " p o p "

c h e s t a p e r " P r o b a b i l i t à d i

P r e c i p i t a z i o n e " . L ' e t i c h e t t a

< m o o n _ p h a s e > f o r n i s c e a l c u n e

i n f o r m a z i o n i i n t e r e s s a n t i c o m e

a l b a , t r a m o n t o e f a s i l u n a r i .

O r a c i a d d e n t r i a m o n e l c o d i c e .

E c c o l a s e z i o n e d e g l i i m p o r t :

from xml.etree import

ElementTree as ET

import urllib

import sys

import getopt

D o b b i a m o o r a c r e a r e l a n o s t r a

c l a s s e . C r e e r e m o u n a r o u t i n e

_ i n i t _ p e r i m p o s t a r e e p u l i r e l e

v a r i a b i l i n e c e s s a r i e , c o m e

m o s t r a t o i n a l t o a d e s t r a n e l l a

p a g i n a s e g u e n t e .

S e n o n v i i n t e r e s s a s u p p o r t a r e

s i a F a h r e n h e i t c h e C e l s i u s ,

e s c l u d e t e l a v i a r i a b i l e c h e n o n v i

i n t e r e s s a . I o h o d e c i s o d i t e n e r l e

e n t r a m b e .

A s e g u i r e , c r e e r e m o l a n o s t r a

r o u t i n e p r i n c i p a l e p e r r e c u p e r a r e i

d a t i d e l l a p r e v i s i o n e . È m o s t r a t a

i n b a s s o a d e s t r a n e l l a p a g i n a

s u c c e s s i v a .

È m o l t o s i m i l e a l l a r o u t i n e d e l l a

v o l t a s c o r s a p e r l e c o n d i z i o n i

a t t u a l i . L a d i f f e r e n z a p r i n c i p a l e

( f i n o r a ) è l ' U R L u t i l i z z a t o . O r a l e

c o s e c a m b i a n o . D a t o c h e a b b i a m o

f i g l i m u l t i p l i c o n l a s t e s s a

e t i c h e t t a a l l ' i n t e r n o d e l g e n i t o r e

d o b b i a m o m o d i f i c a r e i n p a r t e l e

n o s t r e c h i a m a t e a l l ' a n a l i z z a t o r e . I l

c o d i c e è m o s t r a t o i n a l t o a s i n i s t r a

n e l l a p a g i n a s e g u e n t e .

N o t a t e c o m e q u e s t a v o l t a s i s t i a

u s a n d o t r e e . f i n d , e d i c i c l i p e r

s c o r r e r e i d a t i . È u n p e c c a t o c h e

P y t h o n n o n f o r n i s c a u n c o s t r u t t o

S E L E C T / C A S E c o m e i n a l t r i

l i n g u a g g i . L a r o u t i n e I F / E L I F ,

<simpleforecast>−<forecastday>

<period>1</period>−<date>

<epoch>1275706825</epoch><pretty_short>9:00 PM MDT</pretty_short><pretty>9:00 PM MDT on June 04, 2010</pretty><day>4</day><month>6</month>

<year>2010</year><yday>154</yday><hour>21</hour><min>00</min><sec>25</sec><isdst>1</isdst><monthname>June</monthname><weekday_short/><weekday>Friday</weekday><ampm>PM</ampm><tz_short>MDT</tz_short><tz_long>America/Denver</tz_long>

</date>−<high><fahrenheit>92</fahrenheit><celsius>33</celsius>

</high>−<low>

<fahrenheit>58</fahrenheit><celsius>14</celsius>

</low><conditions>Partly Cloudy</conditions><icon>partlycloudy</icon>+<icons>

<skyicon>partlycloudy</skyicon><pop>10</pop></forecastday>

...</simpleforecast>



9

i n d i c e ^

class ForecastInfo:def __init__(self):

self.forecastText = [] # Today/tonight forecastinformation

self.Title = [] # Today/tonightself.date = ''self.icon = [] # Icon to use for conditions

today/tonightself.periods = 0

self.period = 0#==============================================# Extended forecast information#==============================================self.extIcon = [] # Icon to use for extended

forecastself.extDay = [] # Day text for this forecast

("Monday", "Tuesday" etc)self.extHigh = [] # High Temp. (F)self.extHighC = [] # High Temp. (C)self.extLow = [] # Low Temp. (F)self.extLowC = [] # Low Temp. (C)

self.extConditions = [] # Conditions textself.extPeriod = [] # Numerical Period information(counter)

self.extpop = [] # Percent chance OfPrecipitation

def GetForecastData(self,location):try:

forecastdata = 'http://api.wunderground.com/auto/wui/geo/ForecastXML/index.xml?query=%s' % locationurllib.socket.setdefaulttimeout(8)usock = urllib.urlopen(forecastdata)tree = ET.parse(usock)usock.close()

except:print 'ERROR - Forecast - Could not get information from server...'sys.exit(2)

#=================================# Get the forecast for today and (if available)tonight#=================================fcst = tree.find('.//txt_forecast')

for f in fcst:if f.tag == 'number':

self.periods = f.textelif f.tag == 'date':

self.date = f.textfor subelement in f:

if subelement.tag == 'period':self.period=int(subelement.text)

if subelement.tag == 'fcttext':

self.forecastText.append(subelement.text)elif subelement.tag == 'icon':

self.icon.append( subelement.text)elif subelement.tag == 'title':self.Title.append(subelement.text)



1 0

i n d i c e ^


c o m u n q u e , f u n z i o n a a d o v e r e , è

s o l o u n p o ' p i ù a r z i g o g o l a t a . O r a

a n a l i z z i a m o i l c o d i c e . A s s e g n a m o

l a v a r i a b i l e f c s t a d o g n i c o s a

a l l ' i n t e r n o d e l l ' e t i c h e t t a

< t x t _ f o r e c a s t > c h e c o s ì i n c l u d e r à

t u t t i i d a t i p e r q u e l g r u p p o . Q u i n d i

c e r c h i a m o l e e t i c h e t t e < d a t e > e

< n u m b e r > — d a t o c h e s o n o

s e m p l i c i e t i c h e t t e d i " p r i m o

l i v e l l o " — e c a r i c h i a m o i d a t i n e l l e

n o s t r e v a r i a b i l i . O r a l e c o s e s i

f a n n o u n p o ' p i ù d i f f i c i l i . G u a r d a t e

a l n o s t r o e s e m p i o x m l d i r i s p o s t a .

C i s o n o d u e i s t a n z e d i

< f o r e c a s t d a y > . S o t t o

< f o r e c a s t d a y > c i s o n o i s o t t o -

e l e m e n t i , ,

 , < t i t l e > e < f c t t e x t > . L i

p a s s e r e m o i n r a s s e g n a e d a n c o r a

u t i l i z z i a m o l ' i s t r u z i o n e I F p e r

c a r i c a r l i n e l l e n o s t r e v a r i a b i l i .

O r a d o b b i a m o d a r e u n ' o c c h i a t a

a i d a t i s u l l e p r e v i s i o n i e s t e s e p e r i

s u c c e s s i v i X g i o r n i .

F o n d a m e n t a l m e n t e r i c o r r i a m o a l l o

s t e s s o m e t o d o u s a t o p e r

a s s e g n a r e l e n o s t r e v a r i a b i l i ;

q u e s t o è m o s t r a t o i n a l t o a d e s t r a .

A d e s s o d o b b i a m o c r e a r e l a

n o s t r a r o u t i n e p e r l ' o u t p u t . C o m e

a b b i a m o f a t t o l ' u l t i m a v o l t a , s a r à

a b b a s t a n z a g e n e r i c o . I l c o d i c e p e r

f a r e c i ò è m o s t r a t o a d e s t r a n e l l a

p a g i n a s e g u e n t e .

A n c o r a , s e n o n v o l e t e m o s t r a r e

l e i n f o r m a z i o n i s i a i n C e n t i g r a d i

c h e i n F a h r e n h e i t , m o d i f i c a t e i l

c o d i c e p e r m o s t r a r e q u e l l o c h e

v o l e t e . P e r f i n i r e a b b i a m o l a

r o u t i n e " D o I t " :

def

DoIt(self,Location,US,IncludeTo

day,Output):

self.GetForecastData(Location)

self.output(US,IncludeToday,Out

put)

O r a p o s s i a m o c h i a m a r e l a

r o u t i n e c o m e s e g u e :

forecast = ForecastInfo()

forecast.DoIt('80013',1,0,0) #

Insert your own postal code

Q u e s t o è t u t t o p e r o r a . L a s c i o i l

c o d i c e p e r i c o n t r o l l i a v o i , s e

v o l e t e c i m e n t a r v i .

E c c o i l c o d i c e e s e g u i b i l e

c o m p l e t o :

h t t p : / / p a s t e b i n . c o m / w s S X M X Q x

D i v e r t i t e v i f i n o a l l a

p r o s s i m a v o l t a .

#=================================# Now get the extended forecast

#=================================fcst = tree.find('.//simpleforecast')for f in fcst:

for subelement in f:if subelement.tag == 'period':

self.extPeriod.append(subelement.text)elif subelement.tag == 'conditions':

self.extConditions.append(subelement.text)elif subelement.tag == 'icon':

self.extIcon.append(subelement.text)elif subelement.tag == 'pop':

self.extpop.append(subelement.text)elif subelement.tag == 'date':

for child in subelement.getchildren():if child.tag == 'weekday':

self.extDay.append(child.text)elif subelement.tag == 'high':

for child in subelement.getchildren():if child.tag == 'fahrenheit':

self.extHigh.append(child.text)if child.tag == 'celsius':self.extHighC.append(child.text)

elif subelement.tag == 'low':for child in subelement.getchildren():

if child.tag == 'fahrenheit':self.extLow.append(child.text)

if child.tag == 'celsius':self.extLowC.append(child.text)

G r e g W a l t e r s è i l p r o p r i e t a r i o

d e l l a R a i n y D a y S o l u t i o n s , L L C ,

u n a s o c i e t à d i c o n s u l e n z a i n

A u r o r a , C o l o r a d o e p r o g r a m m a

d a l 1 9 7 2 . A m a c u c i n a r e , f a r e

e s c u r s i o n i , a s c o l t a r e m u s i c a e

p a s s a r e i l t e m p o c o n l a s u a

f a m i g l i a .


http://pastebin.com/wsSXMXQx

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I l P o d c a s t d i F u l l C i r c l e è t o r n a t o e m i g l i o r e c h e

m a i !

G l i a r g o m e n t i n e l l ' e p i s o d i o o t t o i n c l u d o n o :

• N e w s - s v i l u p p o d i M a v e r i c k

• I n t e r v i s t a a L u b u n t u

• G i o c h i - E d r e c e n s i s c e O s m o s

• F e e d b a c k

. . . e t u t t o i l s o l i t o u m o r i s m o .

I c o n d u t t o r i :

• R o b i n C a t l i n g

• E d H e w i t t

• D a v e W i l k i n s

I l p o d c a s t e l e r e l a t i v e n o t e l i t r o v a t e s u :

h t t p : / / f u l l c i r c l e m a g a z i n e . o r g /

def output(self,US,IncludeToday,Output):# US takes 0,1 or 2# 0 = Centigrade# 1 = Fahrenheit# 2 = both (if available)# Now print it allif Output == 0:

for c in range(int(self.period)):

if c <> 1:print '-------------------------------'

print 'Forecast for %s' %self.Title[c].lower()

print 'Forecast = %s' %self.forecastText[c]

print 'ICON=%s' % self.icon[c]print '-----------------------------------'

print 'Extended Forecast...'if IncludeToday == 1:

startRange = 0else:

startRange = 1for c in range(startRange,6):print self.extDay[c]if US == 0: #Centigrade information

print '\tHigh - %s(C)' %self.extHigh[c]

print '\tLow - %s(C)' % self.extLow[c]elif US == 1: #Fahrenheit information

print '\tHigh - %s(F)' %self.extHigh[c]

print '\tLow - %s(F)' % self.extLow[c]else: #US == 2 both(if available)

print '\tHigh - %s' % self.extHigh[c]print '\tLow - %s' % self.extLow[c]

if int(self.extpop[c]) == 0:print '\tConditions - %s.' %

self.extConditions[c]else:

print '\tConditions - %s. %d%% chanceof precipitation.' %(self.extConditions[c],int(self.extpop[c]))



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#!/usr/bin/env python# CursesExample1#-------------------------------# Curses Programming Sample 1#-------------------------------

import curses myscreen = curses.initscr() myscreen.border(0) myscreen.addstr(12, 25, "See Curses, See Curses Run!") myscreen.refresh() myscreen.getch()curses.endwin()


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#!/usr/bin/env python# CursesExample2import curses#==========================================================# MAIN LOOP#==========================================================try:

myscreen = curses.initscr() myscreen.clear()

myscreen.addstr(0,0,"0 1 2 34 5 6 7")

myscreen.addstr(1,0,"12345678901234567890123456789012345678901234567890123456789012345678901234567890")

myscreen.addstr(10,0,"10") myscreen.addstr(20,0,"20") myscreen.addstr(23,0, "23 - Press Any Key to Continue") myscreen.refresh() myscreen.getch()

finally:curses.endwin()

===================================================RECIPE DATABASE

===================================================

1 - Show All Recipes2 - Search for a recipe3 - Show a Recipe4 - Delete a recipe5 - Add a recipe6 - Print a recipe0 - Exit

===================================================Enter a selection ->

#!/usr/bin/env python#-------------------------------# Curses Programming Template#-------------------------------import curses

def InitScreen(Border):if Border == 1:

myscreen.border(0)

#==========================================================# MAIN LOOP#==========================================================

myscreen = curses.initscr()InitScreen(1)try:

myscreen.refresh()# Your Code Stuff Here...

myscreen.addstr(1,1, "Press Any Key to Continue") myscreen.getch()

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curses.initscreenLogicLoop

ShowMainMenu # Show the main menu MainInKey # This is our main input handling routine

While Key != 0:If Key == 1:

ShowAllRecipesMenu # Show the All Recipes MenuInkey1 # Do the input routines for this

ShowMainMenu # Show the main menuIf Key == 2:SearchForARecipeMenu # Show the Search for a Recipe MenuInKey2 # Do the input routines for this optionShowMainMenu # Show the main menu again

If Key == 3:ShowARecipeMenu # Show the Show a recipe menu routineInKey3 # Do the input routine for this routineShowMainMenu # Show the main menu again

… # And so on and so oncurses.endwin() # Restore the terminal

# MAIN LOOPtry:

myscreen = curses.initscr()LogicLoop()


def LogicLoop():DoMainMenu()

MainInKey()

def DoMainMenu(): myscreen.erase() myscreen.addstr(1,1,

"========================================") myscreen.addstr(2,1, " Recipe

Database") myscreen.addstr(3,1,

"========================================") myscreen.addstr(4,1, " 1 - Show All

Recipes") myscreen.addstr(5,1, " 2 - Search for a

recipe")

myscreen.addstr(6,1, " 3 - Show a recipe") myscreen.addstr(7,1, " 4 - Delete a recipe") myscreen.addstr(8,1, " 5 - Add a recipe") myscreen.addstr(9,1, " 6 - Print a recipe") myscreen.addstr(10,1, " 0 - Exit") myscreen.addstr(11,1,

"========================================") myscreen.addstr(12,1, " Enter a selection: ") myscreen.refresh()



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def MainInKey():key = 'X'

while key != ord('0'):key = myscreen.getch(12,22)

myscreen.addch(12,22,key)if key == ord('1'):

ShowAllRecipesMenu()DoMainMenu()

elif key == ord('2'):SearchForARecipeMenu()InKey2()DoMainMenu()

elif key == ord('3'):ShowARecipeMenu()DoMainMenu()

elif key == ord('4'):

NotReady("'Delete A Recipe'")DoMainMenu()

elif key == ord('5'):NotReady("'Add A Recipe'")DoMainMenu()

elif key == ord('6'):NotReady("'Print A Recipe'")DoMainMenu()

myscreen.refresh()

def SearchForARecipeMenu(): myscreen.addstr(4 ,1, "------------------------ -------") myscreen.addstr(5,1, " Search in") myscreen.addstr(6 ,1, "------------------------ -------") myscreen.addstr(7,1, " 1 - Recipe Name") myscreen.addstr(8,1, " 2 - Recipe Source") myscreen.addstr(9,1, " 3 - Ingredients") myscreen.addstr(10,1," 0 - Exit") myscreen.addstr(11,1,"Enter Search Type -> ") myscreen.refresh()

def InKey2():key = 'X'doloop = 1

while doloop == 1:key = myscreen.getch(11,22)

myscreen.addch(11,22,key)tmpstr = "Enter text to search in "if key == ord('1'):

sstr = "'Recipe Name' for -> "tmpstr = tmpstr + sstrretstring = GetSearchLine(13,1,tmpstr)break

elif key == ord('2'):sstr = "'Recipe Source' for -> "

tmpstr = tmpstr + sstrretstring = GetSearchLine(13,1,tmpstr)break

elif key == ord('3'):sstr = "'Ingredients' for -> "tmpstr = tmpstr + sstrretstring = GetSearchLine(13,1,tmpstr)break

else:retstring = ""break

if retstring != "": myscreen.addstr(15,1,"You entered - " + retstring)

else: myscreen.addstr(15,1,"You entered a blank string")

myscreen.refresh() myscreen.addstr(20,1,"Press a key") myscreen.getch()

def GetSearchLine(row,col,strng): myscreen.addstr(row,col,strng) myscreen.refresh()instring = myscreen.getstr(row,len(strng)+1)

myscreen.addstr(row,len(strng)+1,instring) myscreen.refresh()return instring


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http://pastebin.com/ELuZ3T4P

http://docs.python.org/library/curses.html



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import cursestry:

myscreen = curses.initscr()curses.start_color()curses.init_pair(1, curses.COLOR_BLACK,

curses.COLOR_GREEN)curses.init_pair(2, curses.COLOR_BLUE,

curses.COLOR_WHITE)curses.init_pair(3,

curses.COLOR_MAGENTA,curses.COLOR_BLACK) myscreen.clear() myscreen.addstr(3,1," This is a test

",curses.color_pair(1)) myscreen.addstr(4,1," This is a test

",curses.color_pair(2)) myscreen.addstr(5,1," This is a test

",curses.color_pair(3))

myscreen.refresh() myscreen.getch()finally:

curses.endwin()


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import cursesdef main(stdscreen):

curses.init_pair(1, curses.COLOR_BLACK,curses.COLOR_GREEN)

curses.init_pair(2, curses.COLOR_BLUE,curses.COLOR_WHITE)

curses.init_pair(3,curses.COLOR_MAGENTA,curses.COLOR_BLACK)

stdscreen.clear()

stdscreen.addstr(3,1," This is a test",curses.color_pair(1))



stdscreen.refresh()stdscreen.getch()

curses.wrapper(main)

import cursesimport random

class Game1():def __init__(self):

passdef main(self,stdscr):

curses.init_pair(1, curses.COLOR_BLACK,curses.COLOR_GREEN)

curses.init_pair(2, curses.COLOR_BLUE,curses.COLOR_BLACK)

curses.init_pair(3, curses.COLOR_YELLOW,curses.COLOR_BLUE)

curses.init_pair(4, curses.COLOR_GREEN,curses.COLOR_BLUE)

curses.init_pair(5, curses.COLOR_BLACK,curses.COLOR_RED)

def StartUp(self):curses.wrapper(self.main)

g = Game1()g.StartUp()


http://fullcirclemagazine.pastebin.com/z5CgMAgm

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dqfkh txhvwd vror glfkldudwd1defCheckKeys(self,scrn,keyin):

passdef CheckForHit(self,scrn):

pass

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# Line Specific Stuffself.GunLine = 22 #Row where our gun livesself.GunPosition = 39 #Where the gun starts on GunLineself.LetterLine = 2 #Where our letter runs right to leftself.ScoreLine = 1 #Where we are going to display the scoreself.ScorePosition = 50 #Where the score column isself.LivesPosition = 65 #Where the lives column is

# Letter Specific Stuff

self.CurrentLetter = "A" #A dummy Holder Variableself.CurrentLetterPosition = 78 #Where the letter will start on the LetterLineself.DropPosition = 10 #A dummy Holder Variableself.DroppingLetter = 0 #Flag - Is the letter dropping?self.CurrentLetterLine = 3 #A dummy Holder Variableself.LetterWaitCount = 15 #How many times should we loop before actually

working?

# Bullet Specific Stuffself.Shooting = 0 #Flag - Is the gun shooting?self.BulletRow = self.GunLine - 1self.BulletColumn = self.GunPosition

# Other Stuffself.LoopCount = 0 #How many loops have we done in MoveLetterself.GameScore = 0 #Current Game Scoreself.Lives = 3 #Default number of livesself.CurrentColor = 1 #A dummy Holder Variableself.DecScoreOnMiss = 0 #Set to 1 if you want to decrement the

#score every time the letter hits the#bottom row




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IF we have waited the correct number of loops THENReset the loop counterIF we are moving to the left of the screen THEN

Delete the character at the the current row,column.Sleep for 50 millisecondsIF the current column is greater than 2 THEN

Decrement the current columnSet the character at the current row,columnIF the current column is at the random column to drop to the bottom THEN

Set the DroppingLetter flag to 1ELSEDelete the character at the current row,columnSleep for 50 millisecondsIF the current row is less than the line the gun is on THEN

Increment the current row Set the character at the current row,column

ELSEIFExplode (which includes decrementing the score if you wish) and check to

see if we continue.Pick a new letter and position and start everything over again.

ELSEIncrement the loopcounterRefresh the screen.

def Explode(self,scrn):pass

def ResetForNew(self):self.CurrentLetterLine = self.LetterLineself.CurrentLetterPosition = 78self.DroppingLetter = 0self.PickALetter()self.PickDropPoint()

def PickALetter(self):random.seed()char = random.randint(65,90)self.CurrentLetter = chr(char)

def PickDropPoint(self):random.seed()self.DropPosition = random.randint(3,78)


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def GameLoop(self,scrn):test = 1 #Set the loop

while test == 1:curses.napms(20)self.MoveLetter(scrn)keyin =

scrn.getch(self.ScoreLine,self.ScorePosition)if keyin == ord('Q') or keyin == 27: # 'Q'

or <Esc>break

else:self.CheckKeys(scrn,keyin)

self.PrintScore(scrn)if self.Lives == 0:

breakcurses.flushinp()scrn.clear()

def NewGame(self,scrn):self.GunChar = curses.ACS_SSBS

scrn.addch(self.GunLine,self.GunPosition,self.GunChar,curses.color_pair(2) | curses.A_BOLD)

scrn.nodelay(1) #Don't wait for akeystroke...just cache it.

self.ResetForNew()self.GameScore = 0self.Lives = 3self.PrintScore(scrn)scrn.move(self.ScoreLine,self.ScorePosition)

def PrintScore(self,scrn):

scrn.addstr(self.ScoreLine,self.ScorePosition,"SCORE:%d" % self.GameScore)

scrn.addstr(self.ScoreLine,self.LivesPosition,"LIVES:%d" % self.Lives)

stdscr.addstr(11,28,"Welcome to Letter Attack")stdscr.addstr(13,28,"Press a key to begin....")stdscr.getch()stdscr.clear()PlayLoop = 1

while PlayLoop == 1:self.NewGame(stdscr)self.GameLoop(stdscr)stdscr.nodelay(0)

curses.flushinp()stdscr.addstr(12,35,"Game Over")stdscr.addstr(14,23,"Do you want to play

again? (Y/N)")keyin = stdscr.getch(14,56)if keyin == ord("N") or keyin == ord("n"):

breakelse:

stdscr.clear()

def MoveGun(self,scrn,direction):SURJUDPPDUH LQ S\WKRQ 0 SDUWH 47

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( , , )scrn.addch(self.GunLine,self.GunPosition," ")if direction == 0: # left

if self.GunPosition > 0:self.GunPosition -= 1

elif direction == 1: # rightif self.GunPosition < 79:

self.GunPosition += 1

scrn.addch(self.GunLine,self.GunPosition,self.GunChar,curses.color_pair(2) | curses.A_BOLD)

if keyin == 260: # left arrow - NOT on keypadself.MoveGun(scrn,0)curses.flushinp() #Flush out the input buffer for safety.

elif keyin == 261: # right arrow - NOT on keypadself.MoveGun(scrn,1)curses.flushinp() #Flush out the input buffer for safety.

elif keyin == 52: # left arrow ON keypadself.MoveGun(scrn,0)curses.flushinp() #Flush out the input buffer for safety.

elif keyin == 54: # right arrow ON keypadself.MoveGun(scrn,1)

curses.flushinp() #Flush out the input buffer for safety.elif keyin == 32: #spaceif self.Shooting == 0:

self.Shooting = 1self.BulletColumn = self.GunPositionscrn.addch(self.BulletRow,self.BulletColumn,"|")curses.flushinp() #Flush out the input buffer for safety.

def MoveBullet(self,scrn):scrn.addch(self.BulletRow,self.BulletColumn," ")if self.BulletRow > self.LetterLine:

self.CheckForHit(scrn)self.BulletRow -= 1

scrn.addch(self.BulletRow,self.BulletColumn,"|")else:

self.CheckForHit(scrn)

scrn.addch(self.BulletRow,self.BulletColumn," ")self.BulletRow = self.GunLine - 1self.Shooting = 0

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http://fullcirclemagazine.pastebin.com/DeReeh8m




def CheckForHit(self,scrn):if self.Shooting == 1:

if self.BulletRow == self.CurrentLetterLine:if self.BulletColumn == self.CurrentLetterPosition:

scrn.addch(self.BulletRow,self.BulletColumn," ")

self.ExplodeBullet(scrn)self.GameScore +=1self.ResetForNew()

def ExplodeBullet(self,scrn):scrn.addch(self.BulletRow,self.BulletColumn,"X",curses.color_pair(5))scrn.refresh()curses.napms(200)scrn.addch(self.BulletRow,self.BulletColumn,"|",curses.color_pair(5))scrn.refresh()curses.napms(200)scrn.addch(self.BulletRow,self.BulletColumn,"-",curses.color_pair(5))scrn.refresh()curses.napms(200)scrn.addch(self.BulletRow,self.BulletColumn,".",curses.color_pair(5))

scrn.refresh()curses.napms(200)scrn.addch(self.BulletRow,self.BulletColumn," ",curses.color_pair(5))scrn.refresh()curses.napms(200)

scrn.addch(self.CurrentLetterLine,self.CurrentLetterPosition,"X",curses.color_pair(5))curses.napms(100)scrn.refresh()scrn.addch(self.CurrentLetterLine,self.CurrentLetterPosition,"|",curses.color_pair(5))curses.napms(100)

scrn.refresh()scrn.addch(self.CurrentLetterLine,self.CurrentLetterPosition,"-",curses.color_pair(5))curses.napms(100)scrn.refresh()scrn.addch(self.CurrentLetterLine,self.CurrentLetterPosition,".",curses.color_pair(5))curses.napms(100)scrn.refresh()scrn.addch(self.CurrentLetterLine,self.CurrentLetterPosition," ")scrn.addch(self.GunLine,self.GunPosition,self.GunChar,curses.color_pair(2) | curses.A_BOLD)scrn.refresh()



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screen.fill(Background)pygame.display.update()

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import pygamefrom pygame.locals import *import osBackground = 208, 202, 104

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FontForeground = 255,255,255 # White

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#This is the Importimport pygamefrom pygame.locals import *import os# This will make our game window centered in the screen

os.environ['SDL_VIDEO_CENTERED'] = '1'# Initialize pygamepygame.init()#setup the screenscreen = pygame.display.set_mode((800, 600))# Set the caption (title bar of the window)pygame.display.set_caption('Pygame Test #1')# display the screen and wait for an eventdoloop = 1

while doloop:if pygame.event.wait().type in (KEYDOWN,

MOUSEBUTTONDOWN):

break


http://www.pygame.org/

http://www.pygame.org/

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font =pygame.font.Font(None,27) text= font.render('Here is sometext', True, FontForeground,Background) textrect =text.get_rect()screen.blit(text,textrect)pygame.display.update()

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# This will make our game window centered in the screenos.environ['SDL_VIDEO_CENTERED'] = '1'# Initialize pygamepygame.init()# Setup the screenscreen = pygame.display.set_mode((800, 600))# Set the caption (title bar of the window)pygame.display.set_caption('Pygame Test #1')screen.fill(Background)

pygame.display.update()

# Our Loopdoloop = 1

while doloop:if pygame.event.wait().type in (KEYDOWN,

MOUSEBUTTONDOWN):break



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import pygamefrom pygame.locals import *import osprintpygame.font.match_font('Courier New')

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courier =pygame.font.match_font('Courier New') font =pygame.font.Font(courier,27)

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screen.fill(Background)


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class Sprite(pygame.sprite.Sprite):def __init__(self, position):

pygame.sprite.Sprite.__init__(self)# Save a copy of the screen's rectangleself.screen = pygame.display.get_surface().get_rect()

# Create a variable to store the previous position of the spriteself.oldsprite = (0, 0, 0, 0)self.image = pygame.image.load('stick3.png')self.rect = self.image.get_rect()self.rect.x = position[0]self.rect.y = position[1]

def update(self, amount):# Make a copy of the current rectangle for use in erasingself.oldsprite = self.rect# Move the rectangle by the specified amountself.rect = self.rect.move(amount)

# Check to see if we are off the screenif self.rect.x < 0:self.rect.x = 0

elif self.rect.x > (self.screen.width - self.rect.width):self.rect.x = self.screen.width - self.rect.width

if self.rect.y < 0:self.rect.y = 0

elif self.rect.y > (self.screen.height - self.rect.height):self.rect.y = self.screen.height - self.rect.height

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character = Sprite((screen.get_rect().x, screen.get_rect().y))screen.blit(character.image, character.rect)

# Create a Surface the size of our characterblank = pygame.Surface((character.rect.width, character.rect.height))blank.fill(Background)

pygame.display.update()

DoLoop = 1 while DoLoop:

for event in pygame.event.get():if event.type == pygame.QUIT:

sys.exit()# Check for movementelif event.type == pygame.KEYDOWN:

if event.key == pygame.K_LEFT:character.update([-10, 0])

elif event.key == pygame.K_UP:character.update([0, -10])

elif event.key == pygame.K_RIGHT:

character.update([10, 0])elif event.key == pygame.K_DOWN:character.update([0, 10])

elif event.key == pygame.K_q:DoLoop = 0

# Erase the old position by putting our blank Surface on itscreen.blit(blank, character.oldsprite)# Draw the new positionscreen.blit(character.image, character.rect)# Update ONLY the modified areas of the screenpygame.display.update([character.oldsprite, character.rect])

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HHOOWW TTOO



http://fullcirclemagazine.pastebin.com/DvSpZbaj



http://www.pygame.org/docs/ref/index.html

full circle magazine #42 8indice ^

HHOOWW00TTOOScritto da Greg Walters PPrrooggrraammmmaarree iinn PPyytthhoonn 00 PPaarrttee 1166

Tempo fa promisi a

qualcuno che avrei

trattato le differenze tra

Python 2.x e 3.x. La volta

scorsa dissi che avremmo

continuato la programmazione con

pygame ma sento che dovrei

mantenere la mia promessa così

approfondiremo di più pygame la

prossima volta.

In Python 3.x sono stati fatti

molti cambiamenti. Sul web c'è una

gran quantità di informazioni

riguardo questi mutamenti e allafine dell'articolo includerò alcuni

collegamenti. Vi sono anche molte

preoccupazioni relativamente al

fare il cambiamento. Mi

concentrerò sulle variazioni che

riguardano le cose che avete

imparato finora.

Forza, iniziamo.

PRINT

Come ho detto prima uno degliargomenti più importanti è il modo

in cui affrontiamo il comando print.

Con la versione 2.x possiamo usare

semplicemente:

print "This is a test"

e così sarà fatto. Tuttavia, con la

3.x, se ci proviamo otterremo il

messaggio di errore mostrato sopraa destra.

Non è bello. Per usare il

comando print dobbiamo mettere

ciò che vogliamo stampare tra

parentesi tonde così:

print ("This is a test")

Non è un cambiamento molto

grande ma è qualcosa di cui

dobbiamo essere consapevoli.

Potete prepararvi alla migrazioneutilizzando questa sintassi sotto

Python 2.x.

Formattazione esostituzionedivariabile

Anche la formattazione e la

sostituzione di variabile sono

cambiate. Con la versione 2.xabbiamo usato cose simili

all'esempio mostrato sotto a

sinistra e, con la versione 3.1,

potete ottenere il giusto risultato.

Comunque ciò è dovuto al

cambiamento dato che le funzioni

di formattazione '%s' e '%d'

spariranno. Il nuovo modo,

mostrato sotto, è usare le

dichiarazioni di sostituzione '{x}'.

In effetti mi sembra essere più

facile da leggere. Potete anche fare

cose come questa:

>>> print ("Hello {0}. I'm glad you are here at{1}.format("Fred","MySite.com "))

Hello Fred. I'm glad you arehere at MySite.com

>>>

Ricordate, potete ancora usare

'%s' e così via ma essi spariranno.

Numeri

Sotto Python 2.x, se facevate:x = 5/2.0x avrebbe contenuto 2.5. Tuttavia

se aveste fatto:

>>> print "This is a test"File "<stdin>", line 1

print "This is a test"^

SyntaxError: invalid syntax

>>>

>>> months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']

>>> print "You selected month %s" % months[3]You selected month Apr>>>

>>> months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']>>> print("You selected month {0}".format(months[3]))You selected month Apr>>>

VECCHIO METODO

NUOVO METODO

PROGRAMMARE IN PYTHON 0 PARTE 16

x = 5/2x avrebbe contenuto 2 grazie al

troncamento. Sotto la versione 3.x

se fate:x = 5/2ottenete ancora 2.5. Per troncare la

divisione dovete fare:x = 5//2

Input

Un po' di tempo fa abbiamo

avuto a che fare con un sistema di

menù che usava raw_input() per

ottenere una risposta dall'utente

della nostra applicazione. Qualcosa

che andava così:

response = raw_input('Enter aselection -> ')

Questo andava bene sotto la

versione 2.x. Tuttavia sotto la 3.x

otteniamo:

Traceback (most recent calllast):

File "<Stdin>", line 1,

in <module>

NameError: name 'raw_input'is not definited

Questo non è un grosso

problema. Il metodo raw_input() è

stato sostituito da input().

Semplicemente, cambiate la riga in:

response = input ('Enter aselection -> ')

e funziona proprio bene.

Non uguale

Sotto la versione 2.x avremmo

potuto fare un test di "nonuguaglianza" con "<>". Tuttavia ciò

non è consentito nella versione 3.x.

L'operatore di prova adesso è "!=".

Convertire i programmipiù vecchi in Python 3.x

Python 3.x

arriva con una

utility che aiuta a

convertire

un'applicazione 2.x

in codice conforme

alla versione 3.x.

Non funziona

sempre ma vi ci porterà vicini inmolti casi. Lo strumento di

conversione viene chiamato "2to3".

Prendiamo come esempio un

programma davvero semplice.

L'esempio sotto è preso da

Programmare in Python Parte 3 di

tempo addietro.

Quando viene eseguito sotto la

versione 2.x, l'output è simile a

quello mostrato sopra a destra.

Naturalmente quando lo

eseguiamo sotto la 3.x non

funziona.

#pprint1.py#Example of semi-useful functions

def TopOrBottom(character,width):# width is total width of returned linereturn '%s%s%s' % ('+',(character * (width-2)),'+')

def Fmt(val1,leftbit,val2,rightbit):# prints two values padded with spaces# val1 is thing to print on left, val2 is thing to print on right# leftbit is width of left portion, rightbit is width of right portionpart2 = '%.2f' % val2return '%s%s%s%s' % ('| ',val1.ljust(leftbit-2,' '),part2.rjust(rightbit-2,' '),'

|')

# Define the prices of each item item1 = 3.00item2 = 15.00# Now print everything out...print TopOrBottom('=',40)print Fmt('Item 1',30,item1,10)print Fmt('Item 2',30,item2,10)print TopOrBottom('-',40)print Fmt('Total',30,item1+item2,10)print TopOrBottom('=',40)

+======================================+| Item 1 3.00 || Item 2 15.00 |+--------------------------------------+| Total 18.00 |+======================================+Script terminated.




File "pprint1.py", line 18print TopOrBottom('=',40)

SyntaxError: invalid syntax

Proveremo a lasciare che

l'applicazione di conversione lo

sistemi per noi. Per prima cosa

dovremmo creare una copia di

riserva dell'applicazione che saràconvertita. Io lo faccio creando una

copia del file e aggiungendo un

"v3" alla fine del nome:

cp pprint1.py pprint1v3.py

Vi sono molteplici modi di

eseguire l'applicazione. Il modo più

semplice è lasciare che

l'applicazione controlli il codice e ci

dica dove sono i problemi, il che

viene mostrato sotto a sinistra.

Notate che il codice sorgente

originale non è cambiato.

Dobbiamo usare il flag "0w" per

dirgli di scrivere sul file i

cambiamenti. Ciò è mostrato sotto

a destra.

Noterete anche che l'output è

identico. Questa volta, comunque, il

file sorgente (mostrato nella

pagina successiva) è cambiato in un

file "versione 3 compatibile".

Adesso il programma funziona

come dovrebbe sotto la versione

3.x. E, dato che era semplice,

funziona ancora anche sotto la

versione 2.x.

Passo adesso allaversione 3.x?

Molti dei problemi sono comuni

a qualunque cambiamento in un

linguaggio di programmazione. Icambiamenti di sintassi abbondano

ad ogni nuova versione. A volte

spuntano fuori dal nulla scorciatoie

come += o 0= e rendono la nostra

> 2to3 pprint1v3.pyRefactoringTool: Skipping implicit fixer: bufferRefactoringTool: Skipping implicit fixer: idiomsRefactoringTool: Skipping implicit fixer: set_literal

RefactoringTool: Skipping implicit fixer: ws_commaRefactoringTool: Refactored pprint1v3.py--- pprint1v3.py (original)+++ pprint1v3.py (refactored)@@ -15,9 +15,9 @@

item1 = 3.00item2 = 15.00# Now print everything out...

-print TopOrBottom('=',40)-print Fmt('Item 1',30,item1,10)-print Fmt('Item 2',30,item2,10)-print TopOrBottom('-',40)-print Fmt('Total',30,item1+item2,10)-print TopOrBottom('=',40)+print(TopOrBottom('=',40))+print(Fmt('Item 1',30,item1,10))+print(Fmt('Item 2',30,item2,10))+print(TopOrBottom('-',40))+print(Fmt('Total',30,item1+item2,10))+print(TopOrBottom('=',40))RefactoringTool: Files that need to be modified:RefactoringTool: pprint1v3.py

> 2to3 -w pprint1v3.pyRefactoringTool: Skipping implicit fixer: bufferRefactoringTool: Skipping implicit fixer: idiomsRefactoringTool: Skipping implicit fixer: set_literal

RefactoringTool: Skipping implicit fixer: ws_commaRefactoringTool: Refactored pprint1v3.py--- pprint1v3.py (original)+++ pprint1v3.py (refactored)@@ -15,9 +15,9 @@

item1 = 3.00item2 = 15.00# Now print everything out...

-print TopOrBottom('=',40)-print Fmt('Item 1',30,item1,10)-print Fmt('Item 2',30,item2,10)-print TopOrBottom('-',40)-print Fmt('Total',30,item1+item2,10)-print TopOrBottom('=',40)+print(TopOrBottom('=',40))+print(Fmt('Item 1',30,item1,10))+print(Fmt('Item 2',30,item2,10))+print(TopOrBottom('-',40))+print(Fmt('Total',30,item1+item2,10))+print(TopOrBottom('=',40))RefactoringTool: Files that were modified:RefactoringTool: pprint1v3.py




vita più facile, in effetti.

Quale è lo svantaggio del

migrare semplicemente alla

versione 3.x proprio adesso? Beh, ce

n'è un po'. Molti moduli di librerie

che abbiamo utilizzato non sono

disponibili per la versione 3 proprio

adesso. Cose come Mutegen, cheabbiamo utilizzato qualche articolo

fa, non sono proprio ancora

disponibili. Quantunque questo sia

un ostacolo, non richiede che

rinunciate completamente a Python

3.x.

Il mio suggerimento è di

cominciare ora a scrivere codice

utilizzando un'apposita sintassi 3.x.La versione 2.6 di Python supporta

quasi tutto ciò di cui avreste

bisogno per scrivere in modalità

3.x. In questo modo sarete pronti a

partire una volta che dovrete

cambiare alla 3.x. Se riuscite a

sopravvivere con la libreria di

moduli standard, continuate e fate

il salto. Se, d'altro canto, andate

oltre i limiti potreste volerattendere fino a che la libreria dei

moduli si aggiorna. E lo farà.

Sotto vi sono alcuni

collegamenti che ho pensato

potessero essere utili. Il primo è

alla pagina sull'impiego di 2to3. Il

secondo è un bignamino di 4 pagine

che ho scoperto essere un

riferimento molto buono. Il terzo è

a ciò che considero essere il miglior

libro sull'utilizzo di Python (questo

fino a che deciderò di scrivere il

mio).

Arrivederci alla prossima volta.

Collegamenti

Utilizzo di 2to3

http://docs.python.org/library/2to3

.html

Passare da Python 2 a Python 3

(un bignamino di 4 pagine)

http://ptqmedia.pearsoncmq.com/i

mprint_downloads/informit/promo

tions/python/python2python3.pdf

Dive into Python 3

http://diveintopython3.org

#pprint1.py#Example of semi-useful functions

def TopOrBottom(character,width):# width is total width of returned linereturn '%s%s%s' % ('+',(character * (width-2)),'+')

def Fmt(val1,leftbit,val2,rightbit):# prints two values padded with spaces# val1 is thing to print on left, val2 is thing to print on right

# leftbit is width of left portion, rightbit is width of right portionpart2 = '%.2f' % val2return '%s%s%s%s' % ('| ',val1.ljust(leftbit-2,' '),part2.rjust(rightbit-2,' '),'

|')# Define the prices of each item item1 = 3.00item2 = 15.00# Now print everything out...print(TopOrBottom('=',40))print(Fmt('Item 1',30,item1,10))print(Fmt('Item 2',30,item2,10))print(TopOrBottom('-',40))print(Fmt('Total',30,item1+item2,10))print(TopOrBottom('=',40))

Greg Walters è il proprietario dellaRainyDay Solutions, LLC, una societàdi consulenza in Aurora, Colorado eprogramma dal 1972. Ama cucinare,fare escursioni, ascoltare musica epassare il tempo con la sua famiglia.

http://docs.python.org/library/2to3.html



http://ptgmedia.pearsoncmg.com/imprint_downloads/informit/promotions/python/python2python3.pdf



http://diveintopython3.org/

http://diveintopython3.org/

