urequests with ussl causes an OSError

[ahmedkalnaggar]

On my WiPy 2.0 Board, When trying to get or post (to https links) every n amount of seconds using the urequests library it works fine and make around 10-15 successful requests then suddenly it raises an OSError -1 . And The Error points me to line 56 in the urequests source code which is:
s = ussl.wrap_socket(s, server_hostname=host)
Normally I would catch any exception that occurs and try to POST it again or POST another packet.
However, if an OSError occurs all the next Requests fails too which forces me to reset the board.

[Devang Sharma]

Hello @ahmedkalnaggar,

I've been facing a similar issue with my LoPy. I've also asked in a thread.
https://forum.pycom.io/topic/2164/lopy-http-post-request-oserror
Have you solved the issue?

[ahmedkalnaggar]

@devang-sharma yes, by using gc.collect() after each request.

[Devang Sharma]

@ahmedkalnaggar Didn't work on my LoPy. Still getting the same error!

[this.wiederkehr]

@devang-sharma said in urequests with ussl causes an OSError:

@ahmedkalnaggar Didn't work on my LoPy. Still getting the same error!

I might be going to face similar problems as I intend to use urequests lib to (up to now I did not come accross that problem). Therefore I am interested in the solution too.

Are you guys aware that you have to manually close the socket after each request?

See the last line of the example:
https://github.com/micropython/micropython-lib/blob/master/urequests/example_xively.py

try:
    import urequests as requests
except ImportError:
    import requests

r = requests.get("http://api.xively.com/")
print(r)
print(r.content)
print(r.text)
print(r.content)
print(r.json())

# It's mandatory to close response objects as soon as you finished
# working with them. On MicroPython platforms without full-fledged
# OS, not doing so may lead to resource leaks and malfunction.
r.close()

[Devang Sharma]

@this-wiederkehr You've got the point. I've tried this and finally, it works without any error. Thanks a lot.