基于python3.6.1版本,在一个.py文件中,加入这3行:import requests, re, sysreload(sys)sys.setdefaultencoding("utf-8") 出现这样的错误:sys.setdefaultencoding("utf-8")AttributeError: module 'sys' has no attribute 'setdefaultencoding' 原因分析:Python3字符串默认编码unicode, 所以…
python之sys.exit() os._exit() exit() quit()的简单使用 1>sys.exit() >>> import sys>>> help(sys.exit)Help on built-in function exit in module sys:exit(...) exit([status]) Exit the interpreter by raising SystemExit(status). If the…
原文出处: koala bear Direct use of __import__() is rare, except in cases where you want to import a module whose name is only known at runtime. 本文介绍 python module 的动态加载,我们有时希望从配置文件等地获取要被动态加载的 module,但是所读取的配置项通常为字符串类型,无法用 import 加载,例如: >>> import…
今天在ubuntu上升级了pip,之后执行pip命令的时候就报错了: Traceback (most recent call last): File "/usr/bin/pip", line 11, in <module> sys.exit(__main__.main()) 解决方法: sudo vi /usr/bin/pip 将这三行替换为下面三行: 1 from pip import main 2 if __name__ == '__main__': 3 s…
Python module all in one Python Modules https://docs.python.org/3/tutorial/modules.html Fibonacc # Fibonacci numbers module def fib(n): # write Fibonacci series up to n a, b = 0, 1 while a < n: print(a, end=' ') a, b = b, a+b print() def fib2(n): # r…
基于python3.6.1版本,在一个.py文件中,加入这3行:import requests, re, sysreload(sys)sys.setdefaultencoding("utf-8") 出现这样的错误:sys.setdefaultencoding("utf-8")AttributeError: module 'sys' has no attribute 'setdefaultencoding' 原因分析:Python3字符串默认编码unicode, 所以…
site " This module is automatically imported during initialization. The automatic import can be suppressed using the interpreter’s -S option. Importing this module will append site-specific paths to the module search path and add a few builtins. &quo…