安装了包 (Python PIL/Pillow) 但我无法导入它

Package (Python PIL/Pillow) installed but I can't import it

提问by Augustas Vaitkevi?ius

I've been using python for simple data processing scripts, but now I want to do some image processing and I encountered a problem. Importing the pillow module doesn't seem to work. I found a simple script here to check what packages are installed and I found it, but importing it doesn't seem to work.

一直在用python做简单的数据处理脚本，但是现在想做一些图片处理，遇到了问题。导入枕头模块似乎不起作用。我在这里找到了一个简单的脚本来检查安装了哪些软件包，我找到了它，但导入它似乎不起作用。

Here's the code I'm trying to run:

这是我试图运行的代码：

import pip
installed_packages = pip.get_installed_distributions()
installed_packages_list = sorted(["%s==%s" % (i.key, i.version)
     for i in installed_packages])
print(installed_packages_list)

import pillow

And here's the result:

结果如下：

runfile('C:/Users/Augustas/.spyder2/temp.py', wdir=r'C:/Users/Augustas/.spyder2')
['-curses==2.2', 'aafigure==0.5', 'alembic==0.7.1', 'apptools==4.2.1', 'argparse==1.2.2', 'astroid==1.3.2', 'astropy==0.4.2', 'atom==0.3.10', 'babel==1.3', 'backports.ssl-match-hostname==3.4.0.2', 'beaker==1.6.4', 'beautifulsoup4==4.3.2', 'beautifulsoup==3.2.1', 'blockcanvas==4.0.3', 'blosc==1.2.4', 'bottleneck==0.8.0', 'cchardet==0.3.5', 'cdecimal==2.3', 'certifi==14.05.14', 'cffi==0.8.6', 'chaco==4.5.0', 'chardet==2.3.0', 'codetools==4.2.0', 'colorama==0.3.2', 'configobj==5.0.6-xy.1', 'configparser==3.3.0r2', 'cov-core==1.15.0', 'coverage==3.7.1', 'cryptography==0.6.1', 'cssselect==0.9.1', 'cvxopt==1.1.7', 'cvxpy==0.2.15', 'cx-freeze==4.3.3', 'cython==0.21.1', 'datrie==0.7', 'decorator==3.4.0', 'dill==0.2.1', 'distlib==0.1.9', 'docutils-aafigure==0.3', 'docutils==0.12', 'ecdsa==0.12.dev1', 'ecos==1.0.5', 'ed25519ll==0.6', 'egenix-mx-base==3.2.8', 'enable==4.4.1', 'enaml==0.9.8', 'enamllexer==0.0.0', 'encore==0.6.0', 'enum34==1.0.4', 'envisage==4.4.0', 'ets==4.4.4', 'etsdevtools==4.0.2', 'etsproxy==0.1.2', 'execnet==1.2.0', 'fabric==1.10.0', 'faulthandler==2.4', 'ffnet==0.7.1', 'fonttools==2.4', 'formlayout==1.0.15', 'funcsigs==0.4', 'futures==2.2.0', 'gdal==1.11.1', 'gevent-websocket==0.9.3', 'gevent==1.0.1', 'graphcanvas==4.0.2', 'greenlet==0.4.5', 'grin==1.2.1-xy1', 'guidata==1.6.1', 'guiqwt==2.3.2', 'h5py==2.3.1', 'html5lib==0.999', 'imageio==0.5.1', 'imread==0.5.1-git.xy.1', 'ipdb==0.8', 'ipdbplugin==1.4.1', 'ipython==2.3.1', 'jaraco.timing==1.1', 'jaraco.util==10.6.2dev', 'jaraco.windows==3.1.2dev', 'jdcal==1.0', 'jinja2==2.7.3', 'keyring==4.0', 'kiwisolver==0.1.3', 'logilab-common==0.63.2', 'lxml==3.4.1', 'mahotas==1.2.3', 'mako==1.0.0', 'markupsafe==0.23', 'matplotlib==1.4.2', 'mayavi==4.3.1', 'mdp==3.3', 'mock==1.0.1', 'modernize==0.4', 'more-itertools==2.3.dev', 'ndg-httpsclient==0.3.3', 'netcdf4==1.1.1', 'netifaces==0.10.4', 'networkx==1.9.1', 'nose-cov==1.6', 'nose-fixes==1.3', 'nose==1.3.4', 'numexpr==2.4', 'numpy==1.8.2', 'objgraph==1.8.1', 'opencv-python==2.4.9', 'openpyxl==2.1.3', 'pandas==0.15.2', 'paramiko==1.15.1', 'pathlib==1.0.1', 'patsy==0.3.0', 'pdfrw==0.1', 'pep8==1.5.7', 'pillow==2.6.1', 'ply==3.4', 'polygon==2.0.5', 'pp==1.6.4', 'psutil==2.1.3', 'py2exe==0.6.9', 'py==1.4.26', 'pyamg==2.1.0', 'pyasn1-modules==0.0.5', 'pyasn1==0.1.8rc2', 'pyaudio==0.2.8', 'pycares==0.6.3', 'pycparser==2.11.dev1', 'pycrypto==2.6.1', 'pycurl==7.19.5', 'pydicom==0.9.9', 'pyemf==2.0.0', 'pyface==4.4.0', 'pyflakes==0.8.1', 'pygments==2.0.1', 'pygraphviz==1.3.dev', 'pyhdf==0.8.3', 'pyhyphen==2.0.5', 'pyicu==1.8-xy.1', 'pylint==1.4.0', 'pymc==2.3.4', 'pyminuit==1.2.1', 'pyodbc==3.0.7', 'pyopengl-accelerate==3.1.0', 'pyopengl==3.1.0', 'pyopenssl==0.14', 'pyparallel==0.2', 'pyparsing==2.0.3', 'pypdf2==1.23', 'pypdf==1.13', 'pyreadline==2.0.6-xy.1', 'pyserial==2.7', 'pytest-bench==0.3.0', 'pytest-cache==1.0', 'pytest-cov==1.8.1', 'pytest-flakes==0.2', 'pytest-pep8==1.0.6', 'pytest-runner==2.1.2', 'pytest-xdist==1.11', 'pytest==2.6.4', 'python-dateutil==2.3', 'pytz==2014.10', 'pyvisa==1.6.1', 'pywavelets==0.2.2', 'pywin32==219', 'pywin==0.3.1', 'pywinauto==0.4.2', 'pyyaml==3.11', 'pyzmq==14.4.1', 'reportlab==3.1.10', 'requests==2.5.0', 'rope==0.10.2', 'rst2pdf==0.93', 'sampy==1.2.1', 'scikit-image==0.10.1', 'scikit-learn==0.15.2', 'scimath==4.1.2', 'scipy==0.14.0', 'scs==1.0.6', 'seaborn==0.5.1', 'sendkeys==0.3', 'simplejson==3.6.5', 'singledispatch==3.4.0.3', 'six==1.8.0', 'smc.freeimage==0.3dev', 'sphinx==1.2.3', 'sphinxcontrib-aafig==1.0', 'sphinxcontrib-napoleon==0.2.8', 'spyder==2.3.2', 'sqlalchemy==0.9.8', 'statsmodels==0.6.1', 'svg2rlg==0.3', 'svglib==0.6.3', 'sympy==0.7.6', 'tables==3.1.1', 'tempita==0.5.2', 'termcolor==1.1.0', 'toolz==0.7.0', 'tornado==4.0.2', 'traits==4.5.0', 'traitsui==4.4.0', 'ttfquery==1.0.5', 'ujson==1.33', 'uncertainties==2.4.6.1', 'unittest2==0.8.0', 'veusz==1.22', 'virtualenv==1.11.6', 'virtualenvwrapper-win==1.1.5', 'vitables==2.1', 'vpython==5.74', 'vtk==5.10.1', 'wheel==0.24.0', 'whoosh==2.5.7', 'wincertstore==0.2', 'winpdb==1.4.8', 'wsaccel==0.6.2', 'wxpython-common==2.8.12.1', 'wxpython==2.8.12.1', 'xhtml2pdf==0.0.7.dev', 'xlrd==0.9.3', 'xlwt==0.7.5']
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 601, in runfile
    execfile(filename, namespace)
  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 66, in execfile
    exec(compile(scripttext, filename, 'exec'), glob, loc)
  File "C:/Users/Augustas/.spyder2/temp.py", line 7, in <module>
    import pillow
ImportError: No module named pillow

I'm running this on Windows 8.1 using Spyder and Python 2.7.9

我正在使用 Spyder 和 Python 2.7.9 在 Windows 8.1 上运行它

采纳答案by Rahul Gupta

You are importing incorrectly. Try using:

您导入不正确。尝试使用：

import  PIL
from PIL import Image

PILi.e Python Imaging Library is no longer maintained, Pillowis used instead. To maintain backwards compatibility, PILmodule name is used in imports.

PIL即不再维护 Python Imaging Library，Pillow而是使用它。为了保持向后兼容性，PIL导入中使用模块名称。

回答by Maresh

Checkout the doc:

查看文档：

http://pillow.readthedocs.org/handbook/tutorial.html

http://pillow.readthedocs.org/handbook/tutorial.html

You must import it like that:

您必须像这样导入它：

import PIL

回答by felipsmartins

In fact, Pillow is installed under name "PIL", so:

实际上， Pillow 安装在名称“PIL”下，因此：

import PIL as pillow
from PIL import Image
...

Look this:

看看这个：