Explicit types for variables Explicit types for variables You can override the inferred type of a variable by using avariable type annotation: from typing import Union   ...

Check that type of target is known [has-type] Check that type of target is known [has-type] Mypy sometimes generates an error when it hasn’t inferred any type fora variable bei...

Daemon client commands Daemon client commands While dmypy run is sufficient for most uses, some workflows(ones using remote caching , perhaps),require more precise control ove...

Text and AnyStr Text and AnyStr Sometimes you may want to write a function which will accept only unicodestrings. This can be challenging to do in a codebase intended to run in...

Built-in types Built-in types from typing import List , Set , Dict , Tuple , Text , Optional   # For simple built-in types, just use the name of the type x = ...

Context in type inference Context in type inference Type inference is bidirectional and takes context into account. Forexample, the following is valid: def f ( l : List [ o...

1.4 Changelog 1.4.47 sql mypy postgresql mysql mssql oracle 1.4.46 general orm engine sql postgresql sqlite tests 1.4.45 orm engine sql asyncio postgresql sqlit...

Upgrading to nornir 3.x from 2.x Plugin Register Inventory InitNornir Configuration num_workers Upgrading to nornir 3.x from 2.x If you find some change not documented bel...

Multi-line Python 2 function annotations Multi-line Python 2 function annotations Mypy also supports a multi-line comment annotation syntax. Youcan provide a separate annotatio...

Error codes enabled by default Error codes enabled by default This section documents various errors codes that mypy can generatewith default options. See Error codes for gener...