Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Assignment of item at index in repeated field

See original GitHub issue

With a normal Python list we can do:

l = [1, 2, 3, 4, 5]
l[1] = 'hello'
print(l)
> [1, 'hello', 3, 4, 5]

However for a repeated field of a message wrapped by proto-plus we see slightly different behavior:

l = [1, 2, 3, 4, 5]
l[1] = 'hello'
print(l)
> [1, 'hello', 2, 3, 4, 5]

Notice how the 2 just gets push back an index instead of overridden.

For a raw protobuf message, we would normally do:

l = [1, 2, 3, 4, 5]
l[1].CopyFrom('hello')
print(l)
> [1, 'hello', 3, 4, 5]

Issue Analytics

State:
Created 3 years ago
Reactions:1
Comments:6 (3 by maintainers)

Top GitHub Comments

3reactions

software-dovcommented, Feb 18, 2021

I took a look through the unit tests, and it seems that this exact situation is tested for (with the correct behavior expected). I think this is a somewhat recent addition by a third party contributor, thought. I will get the change packaged and out soon and see if that solves the problem.

1reaction

BenRKarlcommented, Feb 19, 2021

Thanks @0x2b3bfa0 #178 does indeed appear to fix our issue.

@software-dov how soon do you think until 1.13.1 will get published to PyPi?