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python custom module usage instructions

高洛峰

Mar 16, 2017 am 11:40 AM

python

保存一个hello.py文件在F:/data/python目录下

hello.py

>>> def hello(x):    print x

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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