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Avoid index errors that cause Mypy to raise Internal Error #1317

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Jan 11, 2023
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Avoid index errors that cause Mypy to raise Internal Error #1317

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4 changes: 2 additions & 2 deletions mypy_django_plugin/transformers/orm_lookups.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,8 @@ def typecheck_queryset_filter(ctx: MethodContext, django_context: DjangoContext)
# Expected formal arguments for filter methods are `*args` and `**kwargs`. We'll only typecheck
# `**kwargs`, which means that `arg_names[1]` is what we're interested in.

lookup_kwargs = ctx.arg_names[1]
provided_lookup_types = ctx.arg_types[1]
lookup_kwargs = ctx.arg_names[1] if len(ctx.arg_names) >= 2 else []
provided_lookup_types = ctx.arg_types[1] if len(ctx.arg_types) >= 2 else []

assert isinstance(ctx.type, Instance)

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