When running flicklib demo I get NameError: name 'sys' is not defined

[lbilde]

Hi Flick :)

When I run flick demo on the pi I keep getting the following error:
pi@raspberrypiLars:~/Flick/bin $ flick-demo
Did not receive firmware info
Traceback (most recent call last):
File "/usr/local/bin/flick-demo", line 4, in
import('pkg_resources').run_script('flicklib==0.0.1', 'flick-demo')
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 739, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 1501, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python3.5/dist-packages/flicklib-0.0.1-py3.5.egg/EGG-INFO/scripts/flick-demo", line 4, in
import('pkg_resources').run_script('flicklib==0.0.1', 'flick-demo')
File "", line 969, in _find_and_load
File "", line 958, in _find_and_load_unlocked
File "", line 664, in _load_unlocked
File "", line 634, in _load_backward_compatible
File "/usr/local/lib/python3.5/dist-packages/flicklib-0.0.1-py3.5.egg/flicklib.py", line 479, in
NameError: name 'sys' is not defined
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/flicklib-0.0.1-py3.5.egg/flicklib.py", line 462, in _exit
File "/usr/local/lib/python3.5/dist-packages/flicklib-0.0.1-py3.5.egg/flicklib.py", line 330, in _stop_poll
AttributeError: 'NoneType' object has no attribute 'stop'

Any help?

Thanks

[ChristopherRush]

@lbilde Looks like its not picking up the board. Do you have anything else connected? Can you detect the board with i2cdetect -y 1 command?

[lbilde]

Hmm seems I can't, using i2cdetect -y 1 results in this:

 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

[lbilde]

Tried to remove and reattach the hat and i2cdetect -y 1 results in this:
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- 42 -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

However I am still getting the same error as above by the way ..

[ryanteck]

Looks like there's two separate issues here.

Line 479 in the library references sys.exit however we import it already as exit. I'll do a fix for this. #44

However it seems to be directly caused by the library not being able to read the firmware information which could indicate an i2c issue or such.

[lbilde]

Trying to reinstall my pi, can the flick-demo run with python 3.7?

[lbilde]

After reinstall and using python2.7 I am back and running, thx..

[tvoverbeek]

@lbilde @ryanteck Yes there is an other issue.
If there is an I2C problem then the atexit function (_exit()) is called.
_exit() stops the polling however at this point the worker thread is not defined yet and hence you get the AttributeError: 'NoneType' object has no attribute 'stop' at line 330.
Suppose we have to add a test like if '_worker' in globals() before calling _worker.stop()