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python custom module usage instructions

高洛峰
高洛峰Original
2017-03-16 11:40:041832browse

保存一个hello.py文件在F:/data/python目录下

  • hello.py

>>> def hello(x):    print x

  • 目录

python custom module usage instructions

  • 导入

>>> import sys>>> sys.path.append('F:/data/python') #添加路径>>> import hello>>> hello.hello(5)  #调用5

 不改变sys.path导入自定义模块:

第一种方法:将hello2.py文件放在D:/Python27/lib/site-packages目录下

>>> import sys,pprint>>> pprint.pprint(sys.path)
['', 'D:\\Python27\\Lib\\idlelib', 'F:\\data\\s', 'D:\\Python27', 'C:\\Windows\\system32\\python27.zip', 'D:\\Python27\\DLLs', 'D:\\Python27\\lib', 'D:\\Python27\\lib\\plat-win', 'D:\\Python27\\lib\\lib-tk', 'D:\\Python27\\lib\\site-packages']>>> import hello2>>> hello2.hello()
hello,world!

 第二种方法:将F:/data/python路径添加到环境变量(在系统变量中,添加PYTHONPATH变量,再将路径添加到值中)

>>> import sys>>> import hello>>> hello.hello(1)1

 

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