Python importing a function with file's name c

问题:

Hi I have a directory in the same folder as my main script called 'actions' in this folder there are several scripts that may be used at any time by the main script. I am at the point where I have the name of the script in the form of a string in a variable called VAR (for the sake of example). I would like to be able to import this file using the variable.

回答1:

If your aim is simply to execute the files, you can use

with open(filename) as f:
    exec(compile(f.read(), filename, "exec"))

or the Python 2.x function execfile().

If you actually want to import the modules using the full import machinery, you need an __init__.py in the directory actions, and can use something like

module = __import__("actions.foo")

to import actions/foo.py.

回答2:

Use the __import__ function

__import__(str)