optional arguments:¶

-h, --help

show this help message and exit

-v, --verbose

more verbose messages

-V, --version

show program's version number and exit

--python-version x.y

use Python x.y

--platform PLATFORM

typecheck special-cased code for the given OS platform (defaults to sys.platform).

-2, --py2

use Python 2 mode

--ignore-missing-imports

silently ignore imports of missing modules

--follow-imports {normal,silent,skip,error}

how to treat imports (default normal)

--disallow-untyped-calls

disallow calling functions without type annotations from functions with type annotations

--disallow-untyped-defs

disallow defining functions without type annotations or with incomplete type annotations

--check-untyped-defs

type check the interior of functions without type annotations

--disallow-subclassing-any

disallow subclassing values of type 'Any' when defining classes

--warn-incomplete-stub

warn if missing type annotation in typeshed, only relevant with --check-untyped-defs enabled

--warn-redundant-casts

warn about casting an expression to its inferred type

--warn-no-return

warn about functions that end without returning

--warn-unused-ignores

warn about unneeded '# type: ignore' comments

--show-error-context

Precede errors with "note:" messages explaining context

--fast-parser

enable fast parser (recommended except on Windows)

-i, --incremental

enable experimental module cache

--cache-dir DIR

store module cache info in the given folder in incremental mode (defaults to '.mypy_cache')

--strict-optional

enable experimental strict Optional checks

--strict-optional-whitelist [GLOB [GLOB ...]]

suppress strict Optional errors in all but the provided files (experimental -- read documentation before using!). Implies --strict-optional. Has the undesirable side-effect of suppressing other errors in non-whitelisted files.

--junit-xml JUNIT_XML

write junit.xml to the given file

--pdb

invoke pdb on fatal error

--show-traceback, --tb

show traceback on fatal error

--stats

dump stats

--inferstats

dump type inference stats

--custom-typing MODULE

use a custom typing module

--custom-typeshed-dir DIR

use the custom typeshed in DIR

--scripts-are-modules

Script x becomes module x instead of __main__

--config-file CONFIG_FILE

Configuration file, must have a [mypy] section (defaults to mypy.ini)

--show-column-numbers

Show column numbers in error messages

--find-occurrences CLASS.MEMBER

print out all usages of a class member (experimental)

report generation:¶

Generate a report in the specified format.

--cobertura-xml-report DIR

--html-report DIR

--linecount-report DIR

--linecoverage-report DIR

--memory-xml-report DIR

--old-html-report DIR

--txt-report DIR

--xml-report DIR

--xslt-html-report DIR

--xslt-txt-report DIR

How to specify the code to type check:¶

-m MODULE, --module MODULE

type-check module; can repeat for more modules

-c PROGRAM_TEXT, --command PROGRAM_TEXT

type-check program passed in as string

-p PACKAGE, --package PACKAGE

type-check all files in a directory

files

type-check given files or directories

environment variables: MYPYPATH additional module search path