make environment python code example
Example 1: virtual env create python
sudo apt-get install python3.6-venv
python3 -m venv env
source env/bin/activate
py -m pip install --user virtualenv
py -m venv env
.\env\Scripts\activate
Example 2: activate venv in python
(tutorial-env) $ python -m pip install -r requirements.txt
Collecting novas==3.1.1.3 (from -r requirements.txt (line 1))
...
Collecting numpy==1.9.2 (from -r requirements.txt (line 2))
...
Collecting requests==2.7.0 (from -r requirements.txt (line 3))
...
Installing collected packages: novas, numpy, requests
Running setup.py install for novas
Successfully installed novas-3.1.1.3 numpy-1.9.2 requests-2.7.0