Integrating mypy into another Python application

It is possible to integrate mypy into another Python 3 application byimporting mypy.api and calling the run function with a parameter of type List[str], containingwhat normally would have been the command line arguments to mypy.

Function run returns a Tuple[str, str, int], namely(<normal_report>, <error_report>, <exit_status>), in which <normal_report>is what mypy normally writes to sys.stdout, <error_report> is what mypynormally writes to sys.stderr and exit_status is the exit status mypy normallyreturns to the operating system.

A trivial example of using the api is the following

import sys
from mypy import api
 
result = api.run(sys.argv[1:])
 
if result[0]:
    print('\nType checking report:\n')
    print(result[0])  # stdout
 
if result[1]:
    print('\nError report:\n')
    print(result[1])  # stderr
 
print('\nExit status:', result[2])