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Give a warning if a local variable is assigned to but never read
feature
priority-1-normal
topic-variable-scope
#76
opened Jan 29, 2013 by
JukkaL
Type check global after function definition
bug
mypy got something wrong
priority-2-low
topic-variable-scope
#538
opened Dec 19, 2014 by
spkersten
x = x or y with x undeclared gives no error
bug
#937
opened Oct 15, 2015 by
jhance
Disallow locally-generated types from escaping their function
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#4690
opened Mar 7, 2018 by
msullivan
Using not yet defined variables is allowed
bug
mypy got something wrong
priority-2-low
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#2788
opened Feb 1, 2017 by
afrieder
Class variable gets the type of instance variable
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#4886
opened Apr 11, 2018 by
roganov
Exception variable can leak to other scopes causing strange error messages
priority-2-low
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-usability
topic-variable-scope
#6647
opened Apr 8, 2019 by
ilevkivskyi
deleting a class-scoped variable that shadows a global variable causes mypy to think it's undefined
bug
mypy got something wrong
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#9600
opened Oct 15, 2020 by
glyph
Mypy issue with python scoping rule
bug
mypy got something wrong
priority-1-normal
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#8746
opened Apr 29, 2020 by
h8hawk
mypy confuses dataclass field name with imported function name
bug
mypy got something wrong
topic-dataclasses
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#10640
opened Jun 13, 2021 by
larspetrus
Class scope name resolution issue
bug
mypy got something wrong
priority-2-low
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#9991
opened Jan 29, 2021 by
hauntsaninja
Does not catch variable declared global/nonlocal after appearing in the same scope.
feature
topic-variable-scope
#13560
opened Aug 30, 2022 by
mrolle45
Use of undefined variable causes unrelated local class to leak scope
bug
mypy got something wrong
topic-variable-scope
#13024
opened Jun 26, 2022 by
denballakh
Type narrowing does not apply to default arguments in definition time
bug
mypy got something wrong
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#13087
opened Jul 7, 2022 by
PIG208
Annotation parsing incorrect when class scope defines same name as import
bug
mypy got something wrong
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#12414
opened Mar 21, 2022 by
PeterJCLaw
false-positive mypy got something wrong
topic-dataclasses
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
name-defined regression with dataclasses and shadowing
bug
#12907
opened May 30, 2022 by
The-Compiler
Mypy misunderstands class-level namespace (spurious mypy got something wrong
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
Variable "module.Class.attribute" is not valid as a type)
bug
#12570
opened Apr 12, 2022 by
gwk
Treat variable, declared global and assigned a value in a class or function, as a member of the module.
feature
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#12765
opened May 11, 2022 by
mrolle45
Does not report syntax error for global/nonlocal declaration after the name is used.
bug
mypy got something wrong
topic-variable-scope
#12747
opened May 8, 2022 by
mrolle45
Name in class def is resolved in enclosing function, instead of global, scope.
bug
mypy got something wrong
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#12764
opened May 10, 2022 by
mrolle45
Redefinition without reassignment doesn't check existing value
bug
mypy got something wrong
topic-variable-scope
#12866
opened May 25, 2022 by
Zeckie
New semanal: Spurious "no binding for nonlocal"
bug
mypy got something wrong
false-positive
mypy gave an error on correct code
priority-1-normal
semantic-analyzer
Problems that happen during semantic analysis
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#7057
opened Jun 25, 2019 by
JelleZijlstra
mypy gives 'not defined' error for use after global declaration
bug
mypy got something wrong
false-positive
mypy gave an error on correct code
priority-1-normal
topic-runtime-semantics
mypy doesn't model runtime semantics correctly
topic-variable-scope
#5732
opened Oct 4, 2018 by
onlined
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Updated in the last three days: updated:>2024-09-19.