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False-positive unreachable code for empty generator #4698

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cdce8p opened this issue Jul 10, 2021 · 0 comments · Fixed by #4699
Closed

False-positive unreachable code for empty generator #4698

cdce8p opened this issue Jul 10, 2021 · 0 comments · Fixed by #4699
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@cdce8p
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False Positive 🦟 A message is emitted but nothing is wrong with the code
Milestone
2.9.4

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@cdce8p
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cdce8p commented Jul 10, 2021 •
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The most efficient way to create a empty generator is to add yield after return. pylint should not add the warning unreachable code for it. https://stackoverflow.com/a/61496399

Steps to reproduce

def func():
    return
    yield

Current behavior

test.py:3:4: W0101: Unreachable code (unreachable)

Expected behavior

No warning

pylint --version output

pylint 2.9.4-dev0
astroid 2.6.3-dev0
Python 3.10.0b3 (v3.10.0b3:865714a117, Jun 17 2021, 09:09:56) [Clang 12.0.5 (clang-1205.0.22.9)]
@cdce8p cdce8p added the False Positive 🦟 A message is emitted but nothing is wrong with the code label Jul 10, 2021
@cdce8p cdce8p self-assigned this Jul 10, 2021
@cdce8p cdce8p mentioned this issue Jul 10, 2021
Merged
@cdce8p cdce8p added this to the 2.9.4 milestone Jul 10, 2021
@skeggse skeggse mentioned this issue Jul 31, 2023
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@cdce8p cdce8p

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False Positive 🦟 A message is emitted but nothing is wrong with the code
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Milestone
2.9.4
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Don't emit unreachable warning for empty generator functions cdce8p/pylint
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