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  1. 打开浏览器

import webbrowser
webbrowser.open(“http://www.baidu.com“)

  1. 乌龟画圆

import turtle

def draw_square():
window = turtle.Screen()
window.bgcolor(“red”)

brad = turtle.Turtle()
brad.shape("turtle")
brad.color("yellow")
brad.speed(2)

brad.forward(100)
brad.right(90)
brad.forward(100)
brad.right(90)
brad.forward(100)
brad.right(90)
brad.forward(100)
brad.right(90)

window.exitonclick()

draw_square()

pypi 下载排行榜：
http://pypi-ranking.info/alltime

  1. csv 格式

csv = [[‘A1’,’A2’,’A3’],
[‘B1’,’B2’,’B3’]]

csv = [{‘name1’:A1,’name2’:’A2’,’name3’:’A3’},
{‘name1’:’B1’,’name2’:’B2’,’name3’:’A3’}]

enrollments = []
for row in reader:
enrollments.append(row)

—–上面代码可以用下面一句话代替——-
enrollments = list(reader)

from datetime import datetime as dt
dt.strptime(date, ‘%Y-%m-%d’)