Have tried :
pip2 install python-jinja2
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at Release process - pip documentation v24.0.dev0 pip 21.0 will remove support for this functionality.
ERROR: Could not find a version that satisfies the requirement python-jinja2 (from versions: none)
ERROR: No matching distribution found for python-jinja2