python - 安装 functools 给我 AttributeError 'module' object has no attribute 'compose'

Question

我在新系统上安装了 Ubuntu 12.04 64 位，无法安装 functools。我已经安装了多次，但不记得收到此错误，也无法通过 Google 找到任何解决方案。我需要做什么？

(myvenv)bobs@myvenv:~$ pip install functools
Downloading/unpacking functools
  Downloading functools-0.5.tar.gz
  Running setup.py egg_info for package functools
    Traceback (most recent call last):
      File "<string>", line 3, in <module>
      File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/__init__.py", line 2, in <module>
        from setuptools.extension import Extension, Library
      File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/extension.py", line 5, in <module>
        from setuptools.dist import _get_unpatched
      File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/dist.py", line 10, in <module>
        from setuptools.compat import numeric_types, basestring
      File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/compat.py", line 17, in <module>
        import httplib
      File "/usr/lib/python2.7/httplib.py", line 71, in <module>
        import socket
      File "/usr/lib/python2.7/socket.py", line 49, in <module>
        from functools import partial
      File "functools.py", line 72, in <module>
        globals()['c_%s' % x] = globals()[x] = getattr(_functools, x)
    AttributeError: 'module' object has no attribute 'compose'
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 3, in <module>

  File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/__init__.py", line 2, in <module>

    from setuptools.extension import Extension, Library

  File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/extension.py", line 5, in <module>

    from setuptools.dist import _get_unpatched

  File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/dist.py", line 10, in <module>

    from setuptools.compat import numeric_types, basestring

  File "/home/bobs/.virtualenvs/myvenv/local/lib/python2.7/site-packages/setuptools/compat.py", line 17, in <module>

    import httplib

  File "/usr/lib/python2.7/httplib.py", line 71, in <module>

    import socket

  File "/usr/lib/python2.7/socket.py", line 49, in <module>

    from functools import partial

  File "functools.py", line 72, in <module>

    globals()['c_%s' % x] = globals()[x] = getattr(_functools, x)

AttributeError: 'module' object has no attribute 'compose'

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /home/bobs/.virtualenvs/myvenv/build/functools
Storing complete log in /home/bobs/.pip/pip.log

Answer 1

Python2.7自带functools模块。

如果你想获得 lru-cache 装饰器，你可以安装 functools32，这是 Python3.2 引入的。

编辑:我确实检查过这个。当我尝试使用 Python2.7 pip-install functools 时，我遇到了同样的错误。只需执行 import functools 并照常进行即可。