virtualenv linux code example

Example 1: python virtual environment

python3 -m venv env
python -m virtualenv env #py2

source env/bin/activate

#all this is on same directory

Example 2: python venv usage

python3 -m venv /path/to/new/virtual/environment

Example 3: python install library in virtualenv

# ------- How to use a virtual environment on MAC? -------- #
# Use the command line to:

 1º - Instal Python3 and pip3
  
  
 2º - Create a folder for your virtual environment:
 
  >> cd "path_to_the_place_you_want_to_locate_your_folder"
  
  >> python3 -m venv "name_of_env"
  
  
 3º - Activate this virtual environment:

  >> source "name_of_env"/bin/activate
  
  
 4º - Now you can install new things inside this environment:
  
  >> pip3 install django  # for example

Example 4: linux create virtualenv

# Install virtualenv using pip3
sudo pip3 install virtualenv

# Create virtualenv
virtualenv venv
virtualenv -p python3 venv # To create virtualenv with python3 for example
virtualenv -p /usr/bin/python2.7 # To create virtualenv with Python interpreter of your choice

# Activate virtualenv
source venv/bin/activate

# Desactivate venv
deactivate

Example 5: python virtual env

$ virtualenv --version

Example 6: python virtual environment

source env/bin/activate