What causes the Python error in running the flask example?

Question

When I run my Python/Flask script, it throws this error: OSError: [WinError 10013] An attempt was made to access a socket in a way forbidden by its access permissions.

Here is the full stack trace:

C:\flask_codigofacilito>python hola_mundo.py
Traceback (most recent call last):
  File "hola_mundo.py", line 5, in <module>
    app.run()#star the server in the port 5000
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\site-packages\flask\app.py", line 841, in run
    run_simple(host, port, self, **options)
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\site-packages\werkzeug\serving.py", line 708, in run_simple
    inner()
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\site-packages\werkzeug\serving.py", line 670, in inner
    fd=fd)
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\site-packages\werkzeug\serving.py", line 564, in make_server
    passthrough_errors, ssl_context, fd=fd)
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\site-packages\werkzeug\serving.py", line 476, in __init__
    HTTPServer.__init__(self, (host, int(port)), handler)
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\socketserver.py", line 440, in __init__
    self.server_bind()
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\http\server.py", line 138, in server_bind
    socketserver.TCPServer.server_bind(self)
  File "C:\Users\vince\AppData\Local\Programs\Python\Python35-32\lib\socketserver.py", line 454, 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

What is the issue and what can I do to fix it?

Run on Windows 10

CODE:

from flask import Flask
app = Flask(__name__)#new instance, 
app.run()#star the server in the port 5000

This is the text that shows cmd when running an example in flask — vincentjbs, Feb 19 '17 at 22:29
What version of Windows are you running? Windows 7? Please also include your code. — 657784512, Feb 19 '17 at 22:32
Since it looks like you're running as administrator, this might be getting blocked via firewall or anti-virus as per https://answers.microsoft.com/en-us/ie/forum/ie10-windows_8/an-attempt-was-made-to-access-a-socket-in-a-way/4a955300-4cc6-4b2f-b426-6d6f07e4eddc?auth=1 — Scovetta, Feb 19 '17 at 22:53
@Scovetta Disable firewall and antivirus, continue the same error running as administrator — vincentjbs, Feb 19 '17 at 22:59
As per @hjpotter92, run `netstat -an` from a command or powershell prompt and see if there's anything listening on port 5000. — Scovetta, Feb 19 '17 at 23:04
@hjpotter92 Thanks, if it is taking up a windows process port 5000, change port in code by port 8080 If __name__ == "__main__": App.run (host = '127.0.0.1', port = 8080, debug = True) — vincentjbs, Feb 19 '17 at 23:17

What causes the Python error in running the flask example?

0 Answers0