如何获取所有 Python 标准库模块的列表 [英] How can I get a list of all the Python standard library modules

问题描述

除了标准库之外，我想要类似 sys.builtin_module_names 的东西.其他不起作用的事情:

I want something like sys.builtin_module_names except for the standard library. Other things that didn't work:

• sys.modules - 只显示已经加载的模块
• sys.prefix - 包含非标准库模块的路径并且似乎在 virtualenv 中不起作用.

• sys.modules - only shows modules that have already been loaded
• sys.prefix - a path that would include non-standard library modules and doesn't seem to work inside a virtualenv.

我想要这个列表的原因是我可以将它传递给 --ignore-module 或 --ignore-dir 命令行选项 跟踪 http://docs.python.org/library/trace.html

The reason I want this list is so that I can pass it to the --ignore-module or --ignore-dir command line options of trace http://docs.python.org/library/trace.html

所以最终，我想知道如何在使用 trace 或 sys.settrace 时忽略所有标准库模块.

So ultimately, I want to know how to ignore all the standard library modules when using trace or sys.settrace.

我希望它在 virtualenv 中工作.http://pypi.python.org/pypi/virtualenv

I want it to work inside a virtualenv. http://pypi.python.org/pypi/virtualenv

我希望它适用于所有环境(即跨操作系统、virtualenv 内部和外部.)

I want it to work for all environments (i.e. across operating systems, inside and outside of a virtualenv.)

推荐答案

为什么不自己找出标准库的一部分?

Why not work out what's part of the standard library yourself?

import distutils.sysconfig as sysconfig
import os
std_lib = sysconfig.get_python_lib(standard_lib=True)
for top, dirs, files in os.walk(std_lib):
    for nm in files:
        if nm != '__init__.py' and nm[-3:] == '.py':
            print os.path.join(top, nm)[len(std_lib)+1:-3].replace(os.sep, '.')

给予

abc
aifc
antigravity
--- a bunch of other files ----
xml.parsers.expat
xml.sax.expatreader
xml.sax.handler
xml.sax.saxutils
xml.sax.xmlreader
xml.sax._exceptions

如果您需要避免使用非标准库模块，您可能需要添加一个检查来避免 site-packages.

You'll probably want to add a check to avoid site-packages if you need to avoid non-standard library modules.

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