Examples contain bugs

[dbrosy]

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What are the steps to reproduce this issue?

1. Download latest pycom-libraries
2. Install lorawan-nano-gateway example (nanogateway.py) to lopy4
3. Restart

What happens?

Exception Error

What were you expecting to happen?

I was expecting the example to just work!!

Any logs, error output, etc?

(If it’s long, please paste to https://gist.github.com and insert the link here)

Unhandled exception in thread started by <bound_method>
Traceback (most recent call last):
  File "nanogateway.py", line 446, in _udp_thread
  File "nanogateway.py", line 445, in _udp_thread
AttributeError: 'OSError' object has no attribute 'errno'

Any other comments?

I have edited line 446 from:

                if ex.errno != errno.EAGAIN:

to

                if ex.args[0] != errno.EAGAIN:

this has resolved the issue, but should not OSError have an attribute - errno?

I have also noted a number of issues on docs.pycom.com where examples or references not working or containing formatting errors

https://docs.pycom.io/firmwareapi/micropython/usocket/ (line 22 of example)

What versions of software are you using?

• Board type and hardware version:
• os.uname() output:
  (sysname='LoPy4', nodename='LoPy4', release='1.20.1.r1', version='v1.11-3138a13 on 2019-10-08', machine='LoPy4 with ESP32', lorawan='1.0.2', sigfox='1.0.1', pybytes='1.1.3')

[jaray200]

I can confirm that this has allowed me to establish a connection to my local chirpstack server, though at the time of writing this I have not been able to see the gateway within the chirpstack application.

[Pablo849]

Same error here

[robert-hh]

See this PR #107, which seems not to find any attention by Pycom.

[doniks]

#107 is merged. Please retest