Installing pip in PyQGIS

"pip" is a package management system used to install and manage software packages written in Python. Many packages can be found in the Python Package Index (PyPI).

Many modules are installed through "pip", so as the SWMM5 module.

Installing pip in QGIS - python - PyQgis - OSGeo4w

1 - Download pip - https://bootstrap.pypa.io/get-pip.py ;
2 - Open OSGeo4W;
3 - go to the get-pip.py folder and type:
python get-pip.py