Stop using mutable types for default arg values #1213
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Using mutable types for default args is typically a no-no unless their surprising behavior is being explicitly abused, for an explanation see: http://effbot.org/zone/default-values.htm Fix #1212
jeffwidman
commented
Sep 12, 2017
| @pytest.fixture | ||
| def client(mocker): | ||
| return mocker.Mock(spec=KafkaClient(bootstrap_servers=[], api_version=(0, 9))) | ||
| return mocker.Mock(spec=KafkaClient(bootstrap_servers=(), api_version=(0, 9))) |
Contributor
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Should this argument instead be omitted altogether?
| @pytest.fixture | ||
| def client(mocker): | ||
| _cli = mocker.Mock(spec=KafkaClient(bootstrap_servers=[], api_version=(0, 9))) | ||
| _cli = mocker.Mock(spec=KafkaClient(bootstrap_servers=(), api_version=(0, 9))) |
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Should this argument instead be omitted altogether?
| with patch.object(SimpleClient, 'load_metadata_for_topics'): | ||
| big_num = 2**31 - 3 | ||
| client = SimpleClient(hosts=[], correlation_id=big_num) | ||
| client = SimpleClient(hosts=(), correlation_id=big_num) |
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Should this argument instead be omitted altogether?
Collaborator
|
LGTM. I'd leave the arguments, as it's more explicit. |
tvoinarovskyi
approved these changes
Sep 13, 2017
dpkp
approved these changes
Sep 13, 2017
tvoinarovskyi
deleted the
1212-stop-using-mutable-types-for-default-arg-values
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Using mutable types for default args is typically a no-no unless their
surprising behavior is being explicitly abused, for an explanation see:
http://effbot.org/zone/default-values.htm
Note to reviewers: This is just a find-and-replace of
=[]with=()to see if the tests pass.Possibly some of these arguments aren't actually used and could simply be removed, for example
the test files. If you notice any of these, please comment and I will update the PR.
Fix #1212