Python Flask Basics Templates and Static Files Flat HTML

Ruby Cai
Ruby Cai
6,421 Points

how to fix it ? i change my port , but it still the same problem

File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/flask/app.py",
line 772, in run
run_simple(host, port, self, **options)
File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/werkzeug/servin
g.py", line 618, in run_simple
test_socket.bind((hostname, port))
OSError: [Errno 98] Address already in use

1 Answer

Keith Doyle
Keith Doyle
25,973 Points

I had a similar issue. If you're running this locally there could be something using the port you designated. Try using a different port in your app.run command.

app.run(debug=True, host='0.0.0.0', port='1234')
Ruby Cai
Ruby Cai
6,421 Points

thank you ^^