set up env and requirements.txr code example

Example 1: creating venv python3

# CREATE FOLDER FOR A PROJECT
mkdir project_folder
cd project_folder

# CREATE VIRTUAL ENVIRONMENT
python3.7 -m venv myvenv 
# or alternativelly
virtualenv myvenv --python=python3.7

# ACTIVATE VIRTUAL ENVIRONMENT
source myvenv/bin/activate

Example 2: how to activate python virtual environment

#open directory with terminal where you crated vertual environment
#example your venv name 
teamspirit:~$ cd visualscrapy
#teamspirit:~/visualscrapy$  <-- output
#Now type bellow command
source ./bin/activate
#(visualscrapy) teamspirit:~/visualscrapy$   <-- output