如何完全卸载和重新安装枕头？

Question

我试图在我的服务器上重新安装Pillow，我得到了：

...
Proceed (y/n)? y
  Successfully uninstalled Pillow-4.0.0
(myproject)$ pip install --upgrade --force-reinstall Pillow
Collecting Pillow
  Using cached Pillow-4.0.0-cp27-cp27mu-manylinux1_x86_64.whl
Collecting olefile (from Pillow)
  Using cached olefile-0.44.zip
Building wheels for collected packages: olefile
  Running setup.py bdist_wheel for olefile ... error
  Complete output from command /home/user/.virtualenvs/myproject/bin/python2.7 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-C7Frjt/olefile/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpToYPN3pip-wheel- --python-tag cp27:
  usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: -c --help [cmd1 cmd2 ...]
     or: -c --help-commands
     or: -c cmd --help

  error: invalid command 'bdist_wheel'

  ----------------------------------------
  Failed building wheel for olefile
  Running setup.py clean for olefile
Failed to build olefile
Installing collected packages: olefile, Pillow
  Found existing installation: olefile 0.44
    Uninstalling olefile-0.44:
      Successfully uninstalled olefile-0.44
  Running setup.py install for olefile ... done
Successfully installed Pillow-4.0.0 olefile-0.44

(myproject)$ python
>>> import Pillow
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named Pillow

我做错什么了？在

编辑：我也试着删除Pillow和PIL目录，但还是无法正常工作：

^{pr2}$

Answer 1

试着用一下，看看能不能用。在

import PIL

或者

import PIL as pillow
from PIL import Image