Question

我试图用Django建立一个python 3.6环境。安装说明说我应该安装mysqlclient才能连接到mySQL。我明白了：

dennis@django:~$ sudo -H pip3 install mysqlclient
Collecting mysqlclient
  Using cached mysqlclient-1.3.10.tar.gz
    Complete output from command python setup.py egg_info:
    /bin/sh: 1: mysql_config: not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-4jiw3hvk/mysqlclient/setup.py", line 17, in <module>
        metadata, options = get_config()
      File "/tmp/pip-build-4jiw3hvk/mysqlclient/setup_posix.py", line 44, in get_config
        libs = mysql_config("libs_r")
      File "/tmp/pip-build-4jiw3hvk/mysqlclient/setup_posix.py", line 26, in mysql_config
        raise EnvironmentError("%s not found" % (mysql_config.path,))
    OSError: mysql_config not found

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-4jiw3hvk/mysqlclient/
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

mySQL已正确安装。 mysql_config文件应该是什么？当我尝试升级pip3时，我得到了这个：

dennis@django:~$ sudo -H pip3 install --upgrade pip3
Collecting pip3
  Could not find a version that satisfies the requirement pip3 (from versions: )
No matching distribution found for pip3
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

用pip3安装mysqlclient之后，我注意到模块安装在python3.5目录而不是python3.6目录中，所以当我尝试导入运行python3.6的MySQLdb模块时，找不到它

dennis@django:~/python_db$ python
Python 3.6.0+ (default, Feb  4 2017, 11:11:46) 
[GCC 5.4.1 20161202] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'MySQLdb'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
    from apport.packaging_impl import impl as packaging
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 23, in <module>
    import apt
  File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
    import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'

Original exception was:
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'MySQLdb'
>>>

然后我重新使用python 3.5并找到它。如何使用pip3将模块安装到3.6目录中？

Answer 1

如果您正在使用Mac OS，请尝试以下操作：

brew install mysql

如果你正在使用Ubuntu14 / 16，试试这个：

sudo apt install libmysqlclient-dev

还有一个：

pip3可以使用sudo pip3 install -U pip

进行更新

Answer 2

LDFLAGS=-L/usr/local/opt/openssl/lib pip install mysqlclient

Answer 3

在Debian Stretch中，所需的包名称似乎已更改为default-libmysqlclient-dev

https://packages.debian.org/stretch/default-libmysqlclient-dev

Answer 4

如果您在OSX上运行MAMP，请执行以下操作：

export PATH=$PATH:/Applications/MAMP/Library/bin

Answer 5

您可以尝试将mysql安装到特定的python目录，例如w / python 3.6

sudo python3.6 /usr/bin/pip3 install mysqlclient

Answer 6

对于我来说，该问题已通过以下操作解决：

sudo aptitude install libmysqlclient-dev

在我使用Python 3.x时，还需要执行以下操作：

sudo aptitude install python3-dev

麻烦用pip3安装mysqlclient

6 个答案: