如何确定要在Python中使用"import"导入哪个文件?陈述? [英] How do you determine which file is imported in Python with an "import" statement?

问题描述

如何确定使用"import"语句在Python中导入的文件?

How do you determine which file is imported in Python with an "import" statement?

我想确定我正在加载本地修改的.py文件的正确版本.基本上相当于POSIX环境中的哪个".

I want to determine that I am loading the correct version of a locally modified .py file. Basically the equivalent of "which" in a POSIX environment.

推荐答案

使用-v参数启动python以启用调试输出.然后，您导入模块时，Python将打印出模块从以下位置导入的位置:

Start python with the -v parameter to enable debugging output. When you then import a module, Python will print out where the module was imported from:

$ python -v
...
>>> import re
# /usr/lib/python2.6/re.pyc matches /usr/lib/python2.6/re.py
import re # precompiled from /usr/lib/python2.6/re.pyc
...

如果您还想查看Python在其他什么地方搜索了该模块，请添加第二个-v:

If you additionally want to see in what other places Python searched for the module, add a second -v:

$ python -v -v
...
>>> import re
# trying re.so
# trying remodule.so
# trying re.py
# trying re.pyc
# trying /usr/lib/python2.6/re.so
# trying /usr/lib/python2.6/remodule.so
# trying /usr/lib/python2.6/re.py
# /usr/lib/python2.6/re.pyc matches /usr/lib/python2.6/re.py
import re # precompiled from /usr/lib/python2.6/re.pyc
...

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