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"""Mypy linter support module."""
from __future__ import absolute_import
from __future__ import print_function
from typing import List
from . import base
class MypyLinter(base.LinterBase):
"""Mypy linter."""
def __init__(self):
# type: () -> None
"""Create a mypy linter."""
super(MypyLinter, self).__init__("mypy", "mypy 0.501")
def get_lint_version_cmd_args(self):
# type: () -> List[str]
"""Get the command to run a linter version check."""
return ["--version"]
def get_lint_cmd_args(self, file_name):
# type: (str) -> List[str]
"""Get the command to run a linter."""
# -py2 - Check Python 2 code for type annotations in comments
# --disallow-untyped-defs - Error if any code is missing type annotations
# --ignore-missing-imports - Do not error if imports are not found. This can be a problem
# with standalone scripts and relative imports. This will limit effectiveness but avoids
# mypy complaining about running code.
# --follow-imports=silent - Do not error on imported files since all imported files may not
# be mypy clean
return [
"--py2", "--disallow-untyped-defs", "--ignore-missing-imports",
"--follow-imports=silent", file_name
]
def ignore_interpreter(self):
# type: () -> bool
# pylint: disable=no-self-use
"""
Check if we should ignore the interpreter when searching for the linter to run.
This applies to mypy specifically since the pylinters are executed under Python 2 but mypy
is executed by python 3.
"""
return True
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