PYTHON

virtualenv

pip install virtualenv
# Creating a virtual env.
virtualenv myvirtualenv
# activating
source env/bin/activate
# on windows 
.envScriptsactivate

virtual environement

py -m venv env
.envScriptsactivate

virtual env in python

pip install --user virtualenv
py -m venv env
.envScriptsactivate

Virtual env

# Create a virtual environment to isolate our package dependencies locally
python3 -m venv env
source env/bin/activate  # On Windows use `envScriptsactivate`

python virtual env

$ pip install virtualenv

python virtualenv

python -m venv my_env
source my_env/bin/activate

python virtualenv

python -m venv my_env

python virtualenv venv

python -m venv venv

virtualenv

virtualenv env
envScriptsactivate
deactivate env

python virtual env

$ virtualenv --version

virtual env in python

python3 -m venv tutorial-env

virtualenv

sudo apt install python3-venv

python3 -m venv my-project-env

source my-project-env/bin/activate

python virtual env

$ source venv/bin/activate

virtualenv

# installs PIP globally
curl https://bootstrap.pypa.io/get-pip.py | python

# installs virtualenv globally
pip install virtualenv

# creates a virtualenv
virtualenv -p python2.7 venv

# activates the virtualenv
source venv/bin/activate

python virtual env

$ cd project_folder
$ virtualenv venv

virtualenv

# in terminal -
pip install virtualenv
virtualenv env # or any other name
envScriptsActivate

virtual env

# Virtual Environments ("virtualenvs") keep
# your project dependencies separated.
# They help you avoid version conflicts
# between packages and different versions
# of the Python runtime.

# Before creating & activating a virtualenv:
# `python` and `pip` map to the system
# version of the Python interpreter
# (e.g. Python 2.7)
$ which python
/usr/local/bin/python

# Let's create a fresh virtualenv using
# another version of Python (Python 3):
$ python3 -m venv ./venv

# A virtualenv is just a "Python
# environment in a folder":
$ ls ./venv
bin      include    lib      pyvenv.cfg

# Activating a virtualenv configures the
# current shell session to use the python
# (and pip) commands from the virtualenv
# folder instead of the global environment:
$ source ./venv/bin/activate

# Note how activating a virtualenv modifies
# your shell prompt with a little note
# showing the name of the virtualenv folder:
(venv) $ echo "wee!"

# With an active virtualenv, the `python`
# command maps to the interpreter binary
# *inside the active virtualenv*:
(venv) $ which python
/Users/dan/my-project/venv/bin/python3

# Installing new libraries and frameworks
# with `pip` now installs them *into the
# virtualenv sandbox*, leaving your global
# environment (and any other virtualenvs)
# completely unmodified:
(venv) $ pip install requests

# To get back to the global Python
# environment, run the following command:
(venv) $ deactivate

# (See how the prompt changed back
# to "normal" again?)
$ echo "yay!"

# Deactivating the virtualenv flipped the
# `python` and `pip` commands back to
# the global environment:
$ which python
/usr/local/bin/python

python virtual env

$ virtualenv -p /usr/bin/python2.7 venv

virtualenv

pip install virtualenv env_name #creating env
source env_name/bin/activate #activate env
deactivate #closing/ deactivating env

Virtualenv

virtualenv venv --system-site-packages

virtualenv

pip install virtualenvwrapper-win
#for installing virtualenv package

mkvirtualenv [mkvirtualenv-options] [virtualenv-options] <name>
#creating a virtualenv

workon <env name>
#using virtualenv

Virtualenv

cd my-project/
virtualenv venv

Virtualenv

pip install <package>

python virtual env

$ export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python2.7

python virtual env

$ pip install --user pipenv