1: Python 入門

コンピューターって何？

2

コンピューターは

機械

情報 情報

94.3 53.9 76.5 87.8 92.3 30.9 65.3 65.5 65.3 12.465.9 80.1 76.0 80.3 18.7 77.5 93.2 50.5 70.2 20.664.9 58.2 14.6 23.7 35.4 57.1 31.2 81.3 14.4 60.580.5 11.0 54.2 77.3 74.0 34.5 39.8 98.3 43.6 86.389.3 29.9 16.8 97.3 31.5 22.3 36.0 67.5 55.7 41.282.1 75.5 73.4 30.6 68.2 17.9 91.4 81.2 98.9 55.585.1 47.7 39.5 80.8 65.5 67.3 43.9 19.2 27.6 40.639.2 27.2 26.2 44.2 75.7 69.5 12.1 68.2 47.9 46.251.8 35.8 94.1 28.8 10.4 57.6 58.7 83.2 41.6 65.411.2 32.9 61.4 19.0 87.2 57.5 55.6 46.0 29.0 78.933.8 23.4 20.7 38.5 65.9 81.7 29.9 51.0 58.2 17.445.9 63.1 86.6 55.4 65.1 41.3 58.7 79.5 94.4 53.543.1 43.5 57.9 19.5 89.4 66.3 60.5 72.8 86.2 21.780.2 46.4 94.4 51.1 68.3 27.6 51.4 20.7 50.8 95.551.7 66.4 59.7 24.2 47.1 99.9 47.2 45.5 40.7 54.090.5 92.8 45.3 70.8 12.3 54.1 97.4 43.3 23.2 74.437.5 20.7 75.0 39.3 61.9 31.0 55.0 22.9 61.5 37.427.3 42.0 83.8 67.9 18.7 33.6 85.0 32.9 25.0 33.759.1 89.9 37.2 17.2 43.4 12.9 19.6 45.4 17.6 92.089.2 97.5 72.6 63.2 38.5 63.8 61.5 32.0 62.2 38.478.2 62.5 42.2 89.4 92.1 31.7 87.6 22.9 95.7 62.911.0 21.9 60.3 79.3 34.3 28.7 69.3 74.8 44.1 60.819.0 94.8 24.6 27.5 40.7 35.6 24.0 35.1 71.2 65.345.6 25.4 41.0 91.3 59.7 46.2 71.2 22.8 84.6 62.545.8 64.4 82.5 93.5 71.8 41.7 48.5 30.0 52.6 47.777.3 32.6 77.7 74.8 20.6 66.6 21.4 45.9 47.6 80.818.5 60.1 54.3 44.0 66.0 41.8 37.6 88.3 92.5 41.793.4 50.8 25.9 34.0 44.4 30.0 80.1 57.9 67.0 80.647.6 16.4 75.3 94.8 98.4 61.7 77.3 61.5 77.2 47.230.8 93.9 80.9 80.7 60.7 71.8 63.1 17.9 59.2 12.889.1 21.2 67.5 85.0 73.6 16.6 23.2 99.7 44.2 16.663.6 63.4 62.1 53.2 27.6 68.3 91.7 96.7 19.2 74.667.3 33.3 67.4 16.5 63.7 19.0 73.3 33.7 56.1 30.981.0 88.6 78.3 76.1 88.5 30.3 80.1 87.3 58.1 85.089.5 29.0 90.4 43.4 70.8 24.0 23.6 26.0 94.6 62.498.5 86.0 19.3 42.6 69.1 93.0 60.8 67.8 40.1 96.782.1 35.6 59.7 44.3 59.3 59.5 66.9 40.4 97.6 73.482.4 97.6 27.0 27.2 93.7 16.3 81.1 89.9 92.2 95.756.3 11.9 73.0 40.1 22.5 14.0 94.7 56.2 13.7 40.736.0 17.6 73.8 54.4 54.7 12.2 79.3 90.6 96.8 96.610.6 50.5 72.2 80.6 42.3 31.1 34.2 79.8 24.0 60.738.3 85.5 95.9 52.7 40.7 12.0 49.4 81.0 58.9 81.112.4 11.4 59.2 14.9 40.8 75.8 80.4 58.8 64.6 31.372.9 48.0 57.4 40.6 45.1 20.9 81.1 47.9 91.0 84.355.8 74.9 42.0 53.9 97.7 10.1 18.5 89.1 18.3 88.833.4 41.6 35.5 70.4 23.0 63.6 53.6 42.7 23.9 54.289.5 22.5 51.5 20.1 86.4 34.2 46.3 16.4 44.1 10.792.2 66.6 57.1 40.9 85.7 73.5 36.0 84.8 18.5 12.254.0 87.6 17.9 85.2 71.8 51.3 76.0 85.1 77.0 62.532.0 14.5 50.6 59.7 53.4 65.0 21.9 22.7 75.8 64.827.3 69.4 16.5 72.4 80.9 44.9 53.3 40.9 88.8 31.538.0 61.6 90.1 50.9 35.0 51.7 41.2 83.4 37.4 88.456.4 78.8 64.0 65.0 49.4 89.1 72.5 89.8 54.3 86.291.5 67.4 23.1 21.6 82.2 42.8 88.4 60.1 97.0 27.741.6 49.5 97.3 83.2 29.2 29.3 53.4 28.2 96.4 35.6In Out

94.3 53.9 76.5 87.8 92.3 30.9 65.3 65.5 65.3 12.465.9 80.1 76.0 80.3 18.7 77.5 93.2 50.5 70.2 20.664.9 58.2 14.6 23.7 35.4 57.1 31.2 81.3 14.4 60.580.5 11.0 54.2 77.3 74.0 34.5 39.8 98.3 43.6 86.389.3 29.9 16.8 97.3 31.5 22.3 36.0 67.5 55.7 41.282.1 75.5 73.4 30.6 68.2 17.9 91.4 81.2 98.9 55.585.1 47.7 39.5 80.8 65.5 67.3 43.9 19.2 27.6 40.639.2 27.2 26.2 44.2 75.7 69.5 12.1 68.2 47.9 46.251.8 35.8 94.1 28.8 10.4 57.6 58.7 83.2 41.6 65.411.2 32.9 61.4 19.0 87.2 57.5 55.6 46.0 29.0 78.933.8 23.4 20.7 38.5 65.9 81.7 29.9 51.0 58.2 17.445.9 63.1 86.6 55.4 65.1 41.3 58.7 79.5 94.4 53.543.1 43.5 57.9 19.5 89.4 66.3 60.5 72.8 86.2 21.780.2 46.4 94.4 51.1 68.3 27.6 51.4 20.7 50.8 95.551.7 66.4 59.7 24.2 47.1 99.9 47.2 45.5 40.7 54.090.5 92.8 45.3 70.8 12.3 54.1 97.4 43.3 23.2 74.437.5 20.7 75.0 39.3 61.9 31.0 55.0 22.9 61.5 37.427.3 42.0 83.8 67.9 18.7 33.6 85.0 32.9 25.0 33.759.1 89.9 37.2 17.2 43.4 12.9 19.6 45.4 17.6 92.089.2 97.5 72.6 63.2 38.5 63.8 61.5 32.0 62.2 38.478.2 62.5 42.2 89.4 92.1 31.7 87.6 22.9 95.7 62.911.0 21.9 60.3 79.3 34.3 28.7 69.3 74.8 44.1 60.819.0 94.8 24.6 27.5 40.7 35.6 24.0 35.1 71.2 65.345.6 25.4 41.0 91.3 59.7 46.2 71.2 22.8 84.6 62.545.8 64.4 82.5 93.5 71.8 41.7 48.5 30.0 52.6 47.777.3 32.6 77.7 74.8 20.6 66.6 21.4 45.9 47.6 80.818.5 60.1 54.3 44.0 66.0 41.8 37.6 88.3 92.5 41.793.4 50.8 25.9 34.0 44.4 30.0 80.1 57.9 67.0 80.647.6 16.4 75.3 94.8 98.4 61.7 77.3 61.5 77.2 47.230.8 93.9 80.9 80.7 60.7 71.8 63.1 17.9 59.2 12.889.1 21.2 67.5 85.0 73.6 16.6 23.2 99.7 44.2 16.663.6 63.4 62.1 53.2 27.6 68.3 91.7 96.7 19.2 74.667.3 33.3 67.4 16.5 63.7 19.0 73.3 33.7 56.1 30.981.0 88.6 78.3 76.1 88.5 30.3 80.1 87.3 58.1 85.089.5 29.0 90.4 43.4 70.8 24.0 23.6 26.0 94.6 62.498.5 86.0 19.3 42.6 69.1 93.0 60.8 67.8 40.1 96.782.1 35.6 59.7 44.3 59.3 59.5 66.9 40.4 97.6 73.482.4 97.6 27.0 27.2 93.7 16.3 81.1 89.9 92.2 95.756.3 11.9 73.0 40.1 22.5 14.0 94.7 56.2 13.7 40.736.0 17.6 73.8 54.4 54.7 12.2 79.3 90.6 96.8 96.610.6 50.5 72.2 80.6 42.3 31.1 34.2 79.8 24.0 60.738.3 85.5 95.9 52.7 40.7 12.0 49.4 81.0 58.9 81.112.4 11.4 59.2 14.9 40.8 75.8 80.4 58.8 64.6 31.372.9 48.0 57.4 40.6 45.1 20.9 81.1 47.9 91.0 84.355.8 74.9 42.0 53.9 97.7 10.1 18.5 89.1 18.3 88.833.4 41.6 35.5 70.4 23.0 63.6 53.6 42.7 23.9 54.289.5 22.5 51.5 20.1 86.4 34.2 46.3 16.4 44.1 10.792.2 66.6 57.1 40.9 85.7 73.5 36.0 84.8 18.5 12.254.0 87.6 17.9 85.2 71.8 51.3 76.0 85.1 77.0 62.532.0 14.5 50.6 59.7 53.4 65.0 21.9 22.7 75.8 64.827.3 69.4 16.5 72.4 80.9 44.9 53.3 40.9 88.8 31.538.0 61.6 90.1 50.9 35.0 51.7 41.2 83.4 37.4 88.456.4 78.8 64.0 65.0 49.4 89.1 72.5 89.8 54.3 86.291.5 67.4 23.1 21.6 82.2 42.8 88.4 60.1 97.0 27.741.6 49.5 97.3 83.2 29.2 29.3 53.4 28.2 96.4 35.6

コンピューターって何？

3In Out

def next_matrix(matX, matY):n = len(matX)matZ = [ [0] * n for _ in range(n) ]for i in range(n):

for j in range(n):tmp = INFTYfor k in range(n):

d = matX[i][k] + matY[k][j]tmp = min(tmp, d)

matZ[i][j] = tmpreturn matZ

def sp_length(matA):## Minplus algorithm## TODO: improve complexityn = len(matA)matD = [ [ matA[i][j] for j in range(n) ] for i in range(n) ]t = 1while t < n-1:Program

情報 情報

コンピューターは

機械

基本設定と環境

ターミナル

Finderを立ち上がる

アプリケーションを開く

ユーティリティを開く

ターミナルを立ち上がる

5

$ spyder &

ターミナル

Finderを立ち上がる

アプリケーションを開く

ユーティリティを開く

ターミナルを立ち上がる

6

$ spyder &[1] 14230GVA info: Successfully connected to the Intel plugin, offline Gen9

$

Spyder: Python環境

7

Python 3.6.5 |Anaconda custom (64-bit)| (default, Mar 29 2018, 13:14:23)Type "copyright", "credits" or "license" for more information.

IPython 6.3.1 -- An enhanced Interactive Python.

In [1]: print ("Hello")Hello

In [2]:

Spyder: Python環境

ファイルメニューで

新規ファイル

形式を指定して保存

Documents/CS1

hello.py

8

Spyder: Python環境

9

#!/usr/bin/env python3# -*- coding: utf-8 -*-"""Created on Thu Sep 5 18:38:04 2019

@author: defago"""

print ("Hello")

⌘S ファイルを保存（英語でSave）

$$ Hello

cd ~/Documents/CS1python hello.py

演習

hello_me.py

11

person = "Xavier"print("Hello", person)

person = "Xavier"print(f"Hello {person}")

person = input("What's your name? ")print(f"Hello {person}")

⇣

⇣

calculate.py

Try

‣x = 10 ; y = 2‣x = 5 ; y = 2‣x = 5 ; y = -2‣x = 5 ; y = 0

12

x = int(input("x = "))y = int(input("y = "))print(f"x+y = {x + y}")print(f"x-y = {x - y}")print(f"x*y = {x * y}")print(f"x/y = {x / y}")print(f"x div y = {x // y}")print(f"x mod y = {x % y}")

calculate_better.py

13

x = int(input("x = "))y = int(input("y = "))print(f"x+y = {x + y}")print(f"x-y = {x - y}")print(f"x*y = {x * y}")if not y == 0:

print(f"x/y = {x / y}")print(f"x div y = {x // y}")print(f"x mod y = {x % y}")

else:

print("Division by zero")

even_odd.py

14

x = int(input("x = "))if x % 2 == 0:

print(f"x ({x}) is even 偶数")else:

print(f"x ({x}) is odd 奇数")

if x > 0:print(f"x ({x}) is positive")

elif x == 0:

print("x is null (zero)")else:

print(f"x ({x}) is negative")

loo.py

15

n = int(input("n = "))print ("----------")

if n < 0 or n > 50:print (f"bad value of n ({n})")exit(1)

total = 0while n >= 0:

print (f"n = {n}")n = n - 1total = total + 1

print("done.")print(f"total = {total} iterations")