Professional-grade mypy conf

[MaxHalford]

Professional-grade mypy configuration - Wolt Blog

[e10e3]

As a remark, show_error_codes and no_implicit_optional are enabled by default in new versions of MyPy.

The configuration suggested by the blog post's author becomes:

disallow_untyped_defs = true
disallow_any_unimported = true
check_untyped_defs = true
warn_return_any = true
warn_unused_ignores = true

Alternatively, one can use the strict option to enable most of MyPy's features.

Some interesting optional error codes need to be enabled individually; there is ignore-without-code that goes well with the suggestion of warn_unused_ignores and forces each "ignore" directive to specify which error type is targetted.