Mac 安裝 mysqlclient

前言

django裏mysql backend用的mysqlclient，因此使用的話須要安裝，但安裝比較坑比

錯誤過程-若是本身遇到了建議看下

覺得就是一條命令的事

pip install mysqlclient

但連續不斷的錯誤坑了有近2個小時

1. 首先遇到的是

EnvironmentError: mysql_config not found

網上查了下，大體意思是說須要安裝mysql，不能把，就連一下數據庫，還須要下一個數據庫？又繼續看了下，原來是要裝一個mysql的開發包就能夠了（固然你安裝mysql也是能夠的）

2. 因而 

brew install mysql-connector-c

3. 再次 pip install mysqlclient

$ pip install mysqlclient
Collecting mysqlclient
  Using cached mysqlclient-1.3.12.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/y5/rz5w2dqx00s24rgcgdzyf9z80000gn/T/pip-build-jckrqk4x/mysqlclient/setup.py", line 17, in <module>
        metadata, options = get_config()
      File "/private/var/folders/y5/rz5w2dqx00s24rgcgdzyf9z80000gn/T/pip-build-jckrqk4x/mysqlclient/setup_posix.py", line 54, in get_config
        libraries = [dequote(i[2:]) for i in libs if i.startswith('-l')]
      File "/private/var/folders/y5/rz5w2dqx00s24rgcgdzyf9z80000gn/T/pip-build-jckrqk4x/mysqlclient/setup_posix.py", line 54, in <listcomp>
        libraries = [dequote(i[2:]) for i in libs if i.startswith('-l')]
      File "/private/var/folders/y5/rz5w2dqx00s24rgcgdzyf9z80000gn/T/pip-build-jckrqk4x/mysqlclient/setup_posix.py", line 12, in dequote
        if s[0] in "\"'" and s[0] == s[-1]:
    IndexError: string index out of range

仍是報錯，不至於這麼複雜吧

 

正確過程

因而到mysqlclient源碼github目錄看了下，原來人家早就註明了😳（因此出現問題第一找官網）

以下：

Install

Prerequisites

You may need to install the Python and MySQL development headers and libraries like so:

• sudo apt-get install python-dev libmysqlclient-dev # Debian / Ubuntu
• sudo yum install python-devel mysql-devel # Red Hat / CentOS
• brew install mysql-connector-c # macOS (Homebrew) (Currently, it has bug. See below)

On Windows, there are binary wheels you can install without MySQLConnector/C or MSVC.

Note on Python 3 : if you are using python3 then you need to install python3-dev using the following command :

sudo apt-get install python3-dev # debian / Ubuntu

sudo yum install python3-devel # Red Hat / CentOS

Note about bug of MySQL Connector/C on macOS

See also: https://bugs.mysql.com/bug.php?id=86971

Versions of MySQL Connector/C may have incorrect default configuration options that cause compilation errors when mysqlclient-python is installed. (As of November 2017, this is known to be true for homebrew's mysql-connector-cand official package)

Modification of mysql_config resolves these issues as follows.

Change

# on macOS, on or about line 112:
# Create options 
libs="-L$pkglibdir"
libs="$libs -l "

to

# Create options 
libs="-L$pkglibdir"
libs="$libs -lmysqlclient -lssl -lcrypto"

修改mysql_config時由於是隻讀的，須要chmod 777 設置下，改完後再改回來

修改完後 再次安裝ok了