跟踪Python导入

Question

我的Python库只是改变了它是从主模块的名称foo.bar来foobar.对于后向compat,foo.bar仍然存在,但导入它会引发一些警告.现在,似乎一些示例程序仍然从旧模块导入,但不是直接导入.

我想找到错误的import陈述.是否有任何工具允许我跟踪导入并找到罪魁祸首而不涉及所有代码？

Answer 1

启动python解释器-v:

$ python -v -m /usr/lib/python2.6/timeit.py
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# /usr/lib/python2.6/site.pyc matches /usr/lib/python2.6/site.py
import site # precompiled from /usr/lib/python2.6/site.pyc
# /usr/lib/python2.6/os.pyc matches /usr/lib/python2.6/os.py
import os # precompiled from /usr/lib/python2.6/os.pyc
import errno # builtin
import posix # builtin
# /usr/lib/python2.6/posixpath.pyc matches /usr/lib/python2.6/posixpath.py
import posixpath # precompiled from /usr/lib/python2.6/posixpath.pyc
# /usr/lib/python2.6/stat.pyc matches /usr/lib/python2.6/stat.py
import stat # precompiled from /usr/lib/python2.6/stat.pyc
# /usr/lib/python2.6/genericpath.pyc matches /usr/lib/python2.6/genericpath.py
import genericpath # precompiled from /usr/lib/python2.6/genericpath.pyc
# /usr/lib/python2.6/warnings.pyc matches /usr/lib/python2.6/warnings.py
import warnings # precompiled from /usr/lib/python2.6/warnings.pyc
# /usr/lib/python2.6/linecache.pyc matches /usr/lib/python2.6/linecache.py
import linecache # precompiled from /usr/lib/python2.6/linecache.pyc
# /usr/lib/python2.6/types.pyc matches /usr/lib/python2.6/types.py
import types # precompiled from /usr/lib/python2.6/types.pyc
# /usr/lib/python2.6/UserDict.pyc matches /usr/lib/python2.6/UserDict.py
...

然后只需grep你的旧模块.

Answer 2

编辑foo.bar模块,添加以下代码:

import pdb
pdb.set_trace()

当导入foo.bar时,程序将在pdb模式下停在pdb.set_trace(),您可以在其中调试代码.例如,您可以使用"w"命令打印完整的调用堆栈.