pip install --upgrade

# To install a specific version of a package using pip:
pip install Package_name==version

# Example:
pip install MySQL_python==1.2.2

pip install Django -U

python -m pip install --upgrade pip

pip install Django --upgrade

sudo pip3 install --upgrade pip

# That line of shell code updates library
pip install --upgrade <library_name>

# That line of shell code updates pip