Python PIP

• installation
• 错误解决办法
• 使用方法
• problems

installation

https://pip.pypa.io/en/stable/installation/

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3.8 get-pip.py

If your pip version does not match the python version, you need to reinstall in this way

错误解决办法

1. UnicodeDecodeError

   UnicodeDecodeError: 'utf8' codec can't decode byte 0xd5 in position 24: invalid continuation byte
   

   http://stackoverflow.com/questions/25036897/pip-install-unicodedecodeerror

   解决办法：

   $ export LC_ALL="en_US.UTF-8"
   

使用方法

# 生成需求文件
$ pip freeze >requirements.txt
# 从需求文件安装
$ pip install -r requirements.txt

problems

• specify a version

  $ pip install "your python packet"==1.0.0
  

• PIL

  $ pip install Pillow
  

• TypeError: call() takes exactly 2 arguments (1 given)

  参照：http://stackoverflow.com/questions/42029545/pip-is-error-typeerror-call-takes-exactly-2-arguments-1-given

  $ pip install setuptools==33.1.1
  

• command ‘gcc’ failed with exit status 1

  参照：

  http://stackoverflow.com/questions/11094718/error-command-gcc-failed-with-exit-status-1-while-installing-eventlet

  http://stackoverflow.com/questions/19955775/error-command-gcc-failed-with-exit-status-1-on-centos

  $ yum -y install gcc gcc-c++ kernel-devel
  $ yum -y install python-devel libxslt-devel libffi-devel openssl-devel
  $ pip install "your python packet"
  

• MySQLdb

  参考资料：http://stackoverflow.com/questions/5178292/pip-install-mysql-python-fails-with-environmenterror-mysql-config-not-found

  $ pip install Mysql-Python
  # 如果安装不上，则安装下面的软件
  $ yum install -y mysql-devel python-devel python-setuptools
  

• memcache

  $ pip install python-memcached
  

• yaml

  $ yum install python-yaml
  

• weixin.client

  $ pip install python-weixin
  

• pandas

  http://youerning.blog.51cto.com/10513771/1711008

  $ pip install pandas -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
  

  or

  $ pip install pandas -i https://pypi.tuna.tsinghua.edu.cn/simple
  

  or you can add above args to the requirements.txt like this:

  -i http://pypi.douban.com/simple
  --trusted-host pypi.douban.com
  gunicorn==20.1.0
  pandas==1.4.4
  ...
  

  aliyun mirror is more update than douban mirror, so you can use it:

  -i http://mirrors.aliyun.com/pypi/simple/
  --trusted-host mirrors.aliyun.com
  ...
  

• mysqlclient

  error:

  No matching distribution found for mysqlclient==2.1.1
  OSError: mysql_config not found
  ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
  

  need to install libmysqlclient-dev

  sudo apt-get install libmysqlclient-dev
  

• Specify the installation path

  pip install --target=/usr/local/lib/python2.7/dist-packages/ gevent