Fixed a bug that led to a confusing error message when assigning a va… #6107
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…lue with an incompatible type to a class variable that has no explicit type declaration. This addresses #6106.
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Diff from mypy_primer, showing the effect of this PR on open source code: dd-trace-py (https://github.com/DataDog/dd-trace-py)
- Member "_time_lapse" is unknown (reportGeneralTypeIssues)
+ Expression of type "float" cannot be assigned to member "_time_lapse" of class "deduplication"
+ "float" is incompatible with "int" (reportGeneralTypeIssues)
- Member "TRUNCATE_LIMIT" is unknown (reportGeneralTypeIssues)
+ Expression of type "Literal[80]" cannot be assigned to member "TRUNCATE_LIMIT" of class "SubprocessCmdLine"
+ "Literal[80]" cannot be assigned to type "Literal[4096]" (reportGeneralTypeIssues)
- Member "_CACHE_MAXSIZE" is unknown (reportGeneralTypeIssues)
+ Expression of type "Literal[2]" cannot be assigned to member "_CACHE_MAXSIZE" of class "SubprocessCmdLine"
+ "Literal[2]" cannot be assigned to type "Literal[32]" (reportGeneralTypeIssues)
- Member "expected_path_prefix" is unknown (reportGeneralTypeIssues)
+ Expression of type "Literal['/v0.']" cannot be assigned to member "expected_path_prefix" of class "_APIEndpointRequestHandlerTest"
+ Type cannot be assigned to type "None" (reportGeneralTypeIssues)
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…lue with an incompatible type to a class variable that has no explicit type declaration. This addresses #6106.