python - 如何导入作为命令行参数提供的另一个 python 文件？

Question

这就是a.py的样子

import sys


def test_import(another_python_file):
    import another_python_file as b
    b.run_me()

if __name__ == '__main__':
    print sys.argv
    test_import(sys.argv[1].strip())

这就是b.py的样子

def run_me():
    print 'I am script b'

当我运行时，我得到

$ python a.py b.py
['a.py', 'b.py']
Traceback (most recent call last):
  File "a.py", line 10, in <module>
    test_import(sys.argv[1].strip())
  File "a.py", line 5, in test_import
    import another_python_file as b
ImportError: No module named another_python_file

我需要什么？我希望它导入 b.py 并打印 I am script b

我错过了什么？

Answer 1

a.py:

import os
import sys


def test_import(another_python_file):
    b = __import__(another_python_file)
    b.run_me()

if __name__ == '__main__':
    print sys.argv
    test_import(sys.argv[1].strip('.py'))

b.py
def run_me():
    print 'I am script b'

$ python a.py b.py
['a.py', 'b.py']
I am script b

我能够引用 http://www.diveintopython.net/functional_programming/dynamic_import.html 做到这一点