DS TECH Flask / Django – clearing the port on failed ‘python manage.py runserver’ ~~ March 18, 2016 Bring the previous session into foreground, and close it out! This may need to be done multiple times if multiple instances are running. fg control + c Related Posts:Python - pytz - list of timezonesFlask - launching the local dev web serveractivate virtual environment in pythonchecking server port connetions between machinesFlask - change default port from 5000Flask - article listNetBeans for Python - Setupfrom ? import ? - pythonFlask / gunicorn / nginx / Apache2 / supervisor