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bug in retry code for Star Fragment Lamp #2444
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hello- "ping" is the name of the variable here (but perhaps i should change it to avoid confusion). in the function, the request is passed inside the i did test your suggested fix and it errors out with |
The line where You're seeing the With the proposed change to I didn't realize this line was present until I submitted my pull request, which is why I didn't mention it in the bug report. The lambda expression lets you delay the invocation of This kind of thing is hard to test because it would require causing |
This might help for anyone who needs a refresher for passing functions as parameters/ variables in python. |
I believe there is a bug in the retry code used
get_request()
in the Star Fragment Lamp code.The retry code at line 65 (
Adafruit_Learning_System_Guides/Star_Fragment_Lamp/code.py
Line 65 in a2a2916
n = ping
This simply assigns the value of ping to the variable n. It does not invoke ping. It should be:
n = ping()
The reason the code appears to work is that the retry code is called like this (on line 78 and at least one other location):
now = get_request(5, io.receive_time())
Specifically,
io.recieve_time()
is being invoked beforeget_request()
. The result ofio.recieve_time()
is then being passed intoget_request()
as the value forping
, which as shown above simply copies that value inton
, which it then returns as the result ofget_request()
. Soio.recieve_time()
is being invoked outside of the retry code inget_request()
, which mean it doesn't benefit from any retries. Instead,get_request()
should be invoked like this:now = get_request(5, io.receive_time)
This passes a reference to the
io.recieve_time()
as the value ofping
, which with the change I suggest above, will then be invoked inside the retry loop inget_request
.(Edit: formatting typo)
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