Python - Create virtual environment

Why to create and manage separate?virtual environments?for your Python projects.?

Each environment can use different versions of package dependencies and Python. After you’ve learned to work with virtual environments, you’ll know how to help other programmers reproduce your development setup, and you’ll make sure that your projects never cause dependency conflicts for one another.

Let see in simple steps how to create the environment.

STEP 1:

Install venv "python3 -m pip install --user virtualenv

Note: Commands vary as per the python version for python2 command is "virtualenv" for python3 its "venv"

For sake of folders structure and keep code clean I have created folder "py/environment", where I will keep all my code. This can be done as per your need.

STEP 2:

Command to create environment

python3 -m venv ~/Pankaj/code/py/environments/venvim

STEP 3:

Command to activate the environemnt

source ~/Pankaj/code/py/environments/venvim/bin/activate

STEP 4:

To install package locally on your current environment run

pip install --editable.

STEP 5:

Now clone your projec files on your local

STEP 6:

Use below command to install all required packages

pip install -r <your_requirement_file>.txt -r <your_dev_only_requirement_file>.txt

STEP 7:

Run below command to create package and execute python code

python setup.py build

python setup.py install