1 - Add new py module to req.text file

2 - first pull dev branch in your branch and fix Conflict in your branch and then merge with dev branch

3 - end of each sprint dev branch merged with master

4 - don,t push on master directly

5 - use pip freeze > req.txt after add every python or django module

6 - use commant pip install -r file_name.text to install all requirments