最佳答案
运行“ pip install”的 Ubuntu 出现错误“无法构建以下所需的软件包: * freetype”
执行 pip install -r requirements.txt时，在安装 matplotlib的阶段，我得到以下错误:
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [not found. pip may install it below.]
dateutil: yes [dateutil was not found. It is required for date
axis support. pip/easy_install may 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.]
pycxx: yes [Couldn't import. Using local copy.]
libagg: yes [pkg-config information for 'libagg' could not
be found. Using local copy.]
freetype: no [pkg-config information for 'freetype2' could
not be found.]
...
The following required packages can not be built:
* freetype
难道 pip install -r requirements.txt不应该也安装 freetype 吗? 如何在 Ubuntu 12.04中安装 freetype 使它能够与 matplotlib一起工作？
