在OS X上使用Python与自制程序

我已经使用Mac python一段时间了,我决定自学matplotlib,因为我想拥有一些常见模块的经验.我听到大家说,一旦你进入非标准模块,最好使用python threw homebrew,所以你可以访问pip而不是easy_install.运行后：$brew install python –with-brewed-openssl,$brew install python3 –with-brewed-openssl,$pip install matplotlib,我用$python3转到python shell.在那里,我运行import matplotlib.pyplot作为plt,并得到以下内容：

Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 00:54:21) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named 'matplotlib'
>>>

我有一种感觉我仍在使用mac python,而不是brewed python,我已经尝试编辑路径,但它无法正常工作,即使我在每次编辑后运行$source~ / .bash_profile.为了防止我编辑错误的路径,我将在下面发布文件内容：

PATH=/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin
PATH=/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin
export MSF_DATABASE_CONFIG=/usr/local/share/metasploit-framework/database.yml

PATH="/Users/ericmarkmartin/.apportable/SDK/bin:$PATH"

PATH="/Users/ericmarkmartin/.apportable/SDK/bin:$PATH"

# Setting PATH for Python 3.4
# The orginal version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.4/bin:${PATH}"
PATH=“/usr/local/Cellar/python3/3.4.1/Frameworks/Python.framework/Versions/3.4/bin:${PATH}”
export PATH
PATH=/usr/local/bin:/usr/local/sbin:/usr/local/Cellar/python3/3.4.1/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/Users/ericmarkmartin/.rvm/bin
PATH=/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/Users/ericmarkmartin/.rvm/bin
PATH=/usr/local/bin:/usr/local/sbin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/Users/ericmarkmartin/.rvm/bin
PATH=/usr/local/bin:/usr/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/Users/ericmarkmartin/.rvm/bin:/Users/ericmarkmartin/.rvm/bin
PATH=/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/Users/ericmarkmartin/.apportable/SDK/bin:/usr/local/opt/ruby193/bin:/usr/local/bin:/usr/local/sbin:/opt/iOSOpenDev/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/Users/ericmarkmartin/.rvm/bin:/Users/ericmarkmartin/.rvm/bin

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function

# Setting PATH for MacPython 2.6
# The orginal version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/2.6/bin:${PATH}"
export PATH
export PATH=/usr/local/bin:/usr/local/sbin:${PATH}

$pip3 install matplotlib返回以下内容

RuntimeError: Broken toolchain: cannot link a simple C program

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /private/var/folders/sr/j0s763cj06v38c6btg6v7k7r0000gn/T/pip_build_ericmarkmartin/matplotlib
Storing debug log for failure in /Users/ericmarkmartin/.pip/pip.log

如果需要更多信息,请随时询问,并提前感谢您的帮助！

解决方法:

如果你的系统中有两个python版本,pip通常会为python2安装模块,所以对于python3你可能需要使用pip3.

以供参考：
   https://docs.python.org/3.4/installing/index.html

原文地址：https://codeday.me/bug/20190918/1811387.html