我从网站上安装了MySQL和工作台。我有一个django项目，它的requirements.txt：

Django==1.11.12
djangorestframework==3.8.2
django-cors-headers==2.2.0
drfdocs==0.0.11
mysql-python==1.2.5
django-rest-auth==0.9.3
django-allauth==0.35.0
nltk==3.2.5
django-extensions==2.0.7
pyparsing==2.2.0
pydot==1.2.4

当我跑的时候

pip install -r requirements.txt

我得到一个错误的 mysql_config not found 。为了解决这个问题，我运行了

PATH=$PATH:/usr/local/mysql/bin

它现在抛出

    _mysql.c:44:10: fatal error: 'my_config.h' file not found
    #include "my_config.h"
             ^~~~~~~~~~~~~
    1 error generated.
    error: command 'cc' failed with exit status 1
    ----------------------------------------
Command ""/Users/nitish/gitProjects/Vision Backlog/vb_env/bin/python" -u -c "import setuptools, tokenize;__file__='/private/var/folders/ql/_w2_rlvs2351pdcnzhn04sf40000gn/T/pip-install-M4ue9E/mysql-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/ql/_w2_rlvs2351pdcnzhn04sf40000gn/T/pip-record-7OCzf1/install-record.txt --single-version-externally-managed --compile --install-headers "/Users/nitish/gitProjects/Vision Backlog/vb_env/include/site/python2.7/mysql-python"" failed with error code 1 in /private/var/folders/ql/_w2_rlvs2351pdcnzhn04sf40000gn/T/pip-install-M4ue9E/mysql-python/

为什么会发生这种情况？

更新:抛出了下面的解决方案：

Collecting MySQL-python
  Using cached https://files.pythonhosted.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/ql/_w2_rlvs2351pdcnzhn04sf40000gn/T/pip-install-X6b4rU/MySQL-python/setup.py", line 17, in <module>
        metadata, options = get_config()
      File "setup_posix.py", line 53, in get_config
        libraries = [ dequote(i[2:]) for i in libs if i.startswith(compiler_flag("l")) ]
      File "setup_posix.py", line 8, in dequote
        if s[0] in "\"'" and s[0] == s[-1]:
    IndexError: string index out of range