Python的matplotlib安装问题在Windows 7上的freetype，PNG包

在Windows 7上使用Python 2.7。下面是我用来安装和错误消息的命令。 想知道有没有人遇到过类似的问题？ 谢谢。

C:\Python27\Scripts>pip install matplotlib Collecting matplotlib Downloading matplotlib-1.5.2.tar.gz (51.6MB) 100% |################################| 51.6MB 19kB/s Complete output from command python setup.py egg_info: ============================================================================ Edit setup.cfg to change the build options BUILDING MATPLOTLIB matplotlib: yes [1.5.2] python: yes [2.7.11 (v2.7.11:6d1b6a68f775, Dec 5 2015, 20:40:30) [MSC v.1500 64 bit (AMD64)]] platform: yes [win32] REQUIRED DEPENDENCIES AND EXTENSIONS numpy: yes [version 1.11.1] dateutil: yes [dateutil was not found. It is required for date axis support. pip/easy_install may attempt to install it after matplotlib.] pytz: yes [pytz was not found. pip will attempt to install it after matplotlib.] cycler: yes [cycler was not found. pip will attempt to install it after matplotlib.] tornado: yes [tornado was not found. It is required for the WebAgg backend. pip/easy_install may attempt to install it after matplotlib.] pyparsing: yes [pyparsing was not found. It is required for mathtext support. pip/easy_install may attempt to install it after matplotlib.] libagg: yes [pkg-config information for 'libagg' could not be found. Using local copy.] freetype: no [The C/C++ header for freetype (ft2build.h) could not be found. You may need to install the development package.] png: no [The C/C++ header for png (png.h) could not be found. You may need to install the development package.] qhull: yes [pkg-config information for 'qhull' could not be found. Using local copy.] OPTIONAL SUBPACKAGES sample_data: yes [installing] toolkits: yes [installing] tests: yes [nose 0.11.1 or later is required to run the matplotlib test suite. Please install it with pip or your preferred tool to run the test suite / mock is required to run the matplotlib test suite. Please install it with pip or your preferred tool to run the test suite] toolkits_tests: yes [nose 0.11.1 or later is required to run the matplotlib test suite. Please install it with pip or your preferred tool to run the test suite / mock is required to run the matplotlib test suite. Please install it with pip or your preferred tool to run the test suite] OPTIONAL BACKEND EXTENSIONS macosx: no [Mac OS-X only] qt5agg: no [PyQt5 not found] qt4agg: no [PySide not found; PyQt4 not found] gtk3agg: no [Requires pygobject to be installed.] gtk3cairo: no [Requires cairocffi or pycairo to be installed.] gtkagg: no [Requires pygtk] tkagg: yes [installing; run-time loading from Python Tcl / Tk] wxagg: no [requires wxPython] gtk: no [Requires pygtk] agg: yes [installing] cairo: no [cairocffi or pycairo not found] windowing: yes [installing] OPTIONAL LATEX DEPENDENCIES dvipng: no ghostscript: no latex: no pdftops: no OPTIONAL PACKAGE DATA dlls: no [skipping due to configuration] ============================================================================ * The following required packages can not be built: * freetype, png ---------------------------------------- Command "python setup.py egg_info" failed with error code 1 in c:\users\foo\a ppdata\local\temp\pip-build-zxfsow\matplotlib\ 

 32-bit 2.7: matplotlib-1.5.2-cp27-cp27m-win32.whl 64-bit 2.7: matplotlib-1.5.2-cp27-cp27m-win_amd64.whl 

 pip install matplotlib==1.5.1 

 > pip install freetype-py > pip install pypng > pip install matplotlib