Can't run flask app from git bash on windows

Question

I'm having trouble running my Flask app on GitBash for Windows. When I activate my virtualenv and I do:

python main.py

My Bash becomes frozen for a few seconds, then it displays the error:

  File "C:\Users\shrey\AppData\Local\Programs\Python\Python37- 
  32\lib\http\server.py", line 137, in server_bind
  socketserver.TCPServer.server_bind(self)
  File "C:\Users\shrey\AppData\Local\Programs\Python\Python37- 
  32\lib\socketserver.py", line 466, in server_bind
  self.socket.bind(self.server_address)
  OSError: [WinError 10013] An attempt was made to access a socket in a way 
  forbidden by its access permissions

Can anyone help? It's getting really annoying and I'm not able to QA my code at all. Any help is appreciated- thanks!

I've tried to run it from bash, but it throws the same error. — shreyshrey, Mar 04 '19 at 15:01
I'll rephrase, you're on windows, why aren't you running it from powershell? — Jared Smith, Mar 04 '19 at 15:01
Yes. 1. Use Linux subsystem for windows. 2. use linux in a VM 3. Checkout [this](https://stackoverflow.com/questions/17737203/python-and-virtualenv-on-windows). — Jared Smith, Mar 05 '19 at 01:06
No, I meant run linux in a VM, and the 3 is the third thing (linked to another SO answer). To use a linux VM, use virtualbox, vmware, whatever. If it were me, and it had to be windows, I'd run whatever version of linux we use in production (Ubuntu LTS generally) in a virtualbox VM and work on stuff there. — Jared Smith, Mar 07 '19 at 20:12

score 1 · Accepted Answer · answered Mar 09 '19 at 14:15

Just realized my error. I had run netstat -ban and realized that the port I was trying to run it on (port 5000) was banned and therefore was causing all of my problems. In my main.py app I changed my code to:

if __name__ == '__main__':
  app.run(port=1000)

And it worked. Finally!

Can't run flask app from git bash on windows

1 Answers1