python Creating a virtual environment

• Installing a virtual environment
• • Creating a virtual environment
• Be careful ：virtualenv Can't use workon command

Installing a virtual environment

Use pip Command to download the library of the virtual environment pip install virtualenv
install virtualenvwrapper pip install virtualenvwrapper

Creating a virtual environment

mkvirtualenv env01 ( Environment name )
mkvirtualenv -p python3 py3env01 (python3 Under this condition, the environment name is py3env01 Subvirtual environment of )

The default path of the created file is Under the previously configured path exportWORKON_HOME=’~/.virtualenvs’ Subvirtual environment input path

Query the list of subvirtual environments

Be careful ：virtualenv Can't use workon command

mkvirtualenv env_name
workon env_name # Enter a virtual environment
rmvirtualenv env_name ( It can be used in virtual environment , It can also not be used in the virtual environment )
deactivate
workon or lsvirtualenv View all currently existing virtual environments ,
lssitepackages( View the installed third-party command packages of all virtual environments , No need to enter the virtual environment ）
cd virtualenv ( Jump to the directory where the virtual environment is located ）
Out of the environment deactivate