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Adding type annotations to pip._internal.utils.encoding #6022

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Adding type annotations to pip._internal.utils.encoding #6022

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8 changes: 7 additions & 1 deletion src/pip/_internal/utils/encoding.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,11 @@
import re
import sys

from pip._internal.utils.typing import MYPY_CHECK_RUNNING

if MYPY_CHECK_RUNNING:
from typing import Text, List, Tuple # noqa: F401

BOMS = [
(codecs.BOM_UTF8, 'utf8'),
(codecs.BOM_UTF16, 'utf16'),
Expand All @@ -11,12 +16,13 @@
(codecs.BOM_UTF32, 'utf32'),
(codecs.BOM_UTF32_BE, 'utf32-be'),
(codecs.BOM_UTF32_LE, 'utf32-le'),
]
] # type: List[Tuple[bytes, Text]]

ENCODING_RE = re.compile(br'coding[:=]\s*([-\w.]+)')


def auto_decode(data):
# type: (bytes) -> Text
"""Check a bytes string for a BOM to correctly detect the encoding

Fallback to locale.getpreferredencoding(False) like open() on Python3"""
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