python -m 导致 "Error while finding module specification for"

Question

文档 says

Some Python modules are also useful as scripts. These can be invoked using python -m module [arg] ..., which executes the source file for module as if you had spelled out its full name on the command line

我编写这段代码是为了帮助自己理解-m

def print_hi(n=1):
    print('hi'*n)

if __name__ == "__main__":
    print_hi(9)

我将其保存为文件aname.py。

然后我运行了这个命令，并得到了预期的结果。

$ python aname.py 
hihihihihihihihihi

问题

当我将文件作为模块执行时，会出现此错误

$ python -m aname.py
/usr/bin/python: Error while finding module specification for 'aname.py' (AttributeError: module 'aname' has no attribute '__path__')

什么原因导致此错误？如何解决？

Answer 1

您应该使用不带 .py 后缀的 m，即:$ python -m aname

来自手册页:

       -m module-name
              Searches sys.path for the named module and runs the corresponding .py file as
              a script.

m 参数是一个模块，类似于 import 或 from。