diff options
Diffstat (limited to 'mitmproxy/utils/strutils.py')
| -rw-r--r-- | mitmproxy/utils/strutils.py | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mitmproxy/utils/strutils.py b/mitmproxy/utils/strutils.py index 388c765f..6e399d8f 100644 --- a/mitmproxy/utils/strutils.py +++ b/mitmproxy/utils/strutils.py @@ -1,10 +1,10 @@ +import codecs import io import re -import codecs -from typing import AnyStr, Optional, cast, Iterable +from typing import Iterable, Optional, Union, cast -def always_bytes(str_or_bytes: Optional[AnyStr], *encode_args) -> Optional[bytes]: +def always_bytes(str_or_bytes: Union[str, bytes, None], *encode_args) -> Optional[bytes]: if isinstance(str_or_bytes, bytes) or str_or_bytes is None: return cast(Optional[bytes], str_or_bytes) elif isinstance(str_or_bytes, str): @@ -13,13 +13,15 @@ def always_bytes(str_or_bytes: Optional[AnyStr], *encode_args) -> Optional[bytes raise TypeError("Expected str or bytes, but got {}.".format(type(str_or_bytes).__name__)) -def always_str(str_or_bytes: Optional[AnyStr], *decode_args) -> Optional[str]: +def always_str(str_or_bytes: Union[str, bytes, None], *decode_args) -> Optional[str]: """ Returns, str_or_bytes unmodified, if """ - if isinstance(str_or_bytes, str) or str_or_bytes is None: - return cast(Optional[str], str_or_bytes) + if str_or_bytes is None: + return None + if isinstance(str_or_bytes, str): + return cast(str, str_or_bytes) elif isinstance(str_or_bytes, bytes): return str_or_bytes.decode(*decode_args) else: @@ -39,7 +41,6 @@ _control_char_trans_newline = _control_char_trans.copy() for x in ("\r", "\n", "\t"): del _control_char_trans_newline[ord(x)] - _control_char_trans = str.maketrans(_control_char_trans) _control_char_trans_newline = str.maketrans(_control_char_trans_newline) |