使用virtualenv进行pip安装Matplotlib错误 [英] Pip install Matplotlib error with virtualenv

问题描述

我正在尝试在新的virtualenv中安装matplotlib.

I am trying to install matplotlib in a new virtualenv.

当我这样做时:

pip install matplotlib

或

pip install http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.1.0/matplotlib-1.1.0.tar.gz

我收到此错误:

building 'matplotlib._png' extension

gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -fPIC -  DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/usr/local/include -I/usr/include -I. -I/home/sam/django-projects/datazone/local/lib/python2.7/site-packages/numpy/core/include -I. -I/usr/include/python2.7 -c src/_png.cpp -o build/temp.linux-x86_64-2.7/src/_png.o

src/_png.cpp:10:20: fatal error: png.h: No such file or directory

compilation terminated.

error: command 'gcc' failed with exit status 1

任何人都知道发生了什么事吗?

Anyone have an idea what is going on?

非常感谢您的帮助.

推荐答案

构建Matplotlib需要不是Python库的libpng(以及freetype)，因此pip无法处理安装(或freetype).

Building Matplotlib requires libpng (and freetype, as well) which isn't a python library, so pip doesn't handle installing it (or freetype).

您需要按照libpng-devel和freetype-devel的方式(或与您的操作系统等效的方式)进行安装.

You'll need to install something along the lines of libpng-devel and freetype-devel (or whatever the equivalent is for your OS).

有关matplotlib的信息，请参见构建要求/说明.

See the building requirements/instructions for matplotlib.

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