Refactor imports to remove duplication.

pre_commit/languages/python.py

@@ -2,26 +2,32 @@ import contextlib
 import functools
 import os
 import sys
-from typing import Dict
-from typing import Generator
-from typing import Optional
-from typing import Sequence
-from typing import Tuple
+from typing import (
+    Dict,
+    Generator,
+    Optional,
+    Sequence,
+    Tuple,
+)
 
 import pre_commit.constants as C
-from pre_commit.envcontext import envcontext
-from pre_commit.envcontext import PatchesT
-from pre_commit.envcontext import UNSET
-from pre_commit.envcontext import Var
+from pre_commit.envcontext import (
+    envcontext,
+    PatchesT,
+    UNSET,
+    Var,
+)
 from pre_commit.hook import Hook
 from pre_commit.languages import helpers
 from pre_commit.parse_shebang import find_executable
 from pre_commit.prefix import Prefix
-from pre_commit.util import CalledProcessError
-from pre_commit.util import clean_path_on_failure
-from pre_commit.util import cmd_output
-from pre_commit.util import cmd_output_b
-from pre_commit.util import win_exe
+from pre_commit.util import (
+    CalledProcessError,
+    clean_path_on_failure,
+    cmd_output,
+    cmd_output_b,
+    win_exe,
+)
 
 ENVIRONMENT_DIR = 'py_env'