pre-commit-hooks: python3.6+
diff --git a/pre_commit_hooks/check_json.py b/pre_commit_hooks/check_json.py
index f26e0a5..25dbfd9 100644
--- a/pre_commit_hooks/check_json.py
+++ b/pre_commit_hooks/check_json.py
@@ -1,27 +1,25 @@
-from __future__ import print_function
-
import argparse
-import io
import json
-import sys
from typing import Optional
from typing import Sequence
-def main(argv=None): # type: (Optional[Sequence[str]]) -> int
+def main(argv: Optional[Sequence[str]] = None) -> int:
parser = argparse.ArgumentParser()
parser.add_argument('filenames', nargs='*', help='Filenames to check.')
args = parser.parse_args(argv)
retval = 0
for filename in args.filenames:
- try:
- json.load(io.open(filename, encoding='UTF-8'))
- except (ValueError, UnicodeDecodeError) as exc:
- print('{}: Failed to json decode ({})'.format(filename, exc))
- retval = 1
+ with open(filename, 'rb') as f:
+ try:
+ json.load(f)
+ # TODO: need UnicodeDecodeError?
+ except (ValueError, UnicodeDecodeError) as exc:
+ print(f'{filename}: Failed to json decode ({exc})')
+ retval = 1
return retval
if __name__ == '__main__':
- sys.exit(main())
+ exit(main())
