8000 Update sre_parse module for Python 3.8 by Michael0x2a · Pull Request #3412 · python/typeshed · GitHub
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Update sre_parse module for Python 3.8 #3412

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merged 2 commits into from
Oct 28, 2019
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Update sre_parse module for Python 3.8 #3412

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70da38d
Update sre_parse module for Python 3.8
Michael0x2a Oct 28, 2019
a1ecb72
Fix flake8 (trailing whitespace)
Michael0x2a Oct 28, 2019
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Update sre_parse module for Python 3.8 
It seems in Python 3.8, the 'Pattern' object in the (undocumented?)
sre_parse module was renamed to 'State', along with a few associated
parameters. For example, try taking the diff of:

- https://github.com/python/cpython/blob/3.7/Lib/sre_parse.py
- https://github.com/python/cpython/blob/3.8/Lib/sre_parse.py
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@Michael0x2a
Michael0x2a committed Oct 28, 2019
commit 70da38d28d8ee5a454cd966ee1c07161cb86cc15
26 changes: 21 additions & 5 deletions stdlib/3/sre_parse.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ from typing import (
Any, Dict, FrozenSet, Iterable, List, Match,
Optional, Pattern as _Pattern, Tuple, Union
)
import sys
from sre_constants import _NamedIntConstant as NIC, error as _Error

SPECIAL_CHARS: str
Expand All @@ -20,7 +21,7 @@ GLOBAL_FLAGS: int

class Verbose(Exception): ...

class Pattern:
class _State:
flags: int
groupdict: Dict[str, int]
groupwidths: List[Optional[int]]
Expand All @@ -33,6 +34,11 @@ class Pattern:
def checkgroup(self, gid: int) -> bool: ...
def checklookbehindgroup(self, gid: int, source: Tokenizer) -> None: ...

if sys.version_info >= (3, 8):
State = _State
else:
Pattern = _State


_OpSubpatternType = Tuple[Optional[int], int, int, SubPattern]
_OpGroupRefExistsType = Tuple[int, SubPattern, SubPattern]
Expand All @@ -43,10 +49,16 @@ _CodeType = Tuple[NIC, _AvType]


class SubPattern:
pattern: Pattern
data: List[_CodeType]
width: Optional[int]
def __init__(self, pattern: Pattern, data: List[_CodeType] = ...) -> None: ...

if sys.version_info >= (3, 8):
state: State
def __init__(self, state: State, data: List[_CodeType] = ...) -> None: ...
else:
pattern: Pattern
def __init__(self, pattern: Pattern, data: List[_CodeType] = ...) -> None: ...

def dump(self, level: int = ...) -> None: ...
def __len__(self) -> int: ...
def __delitem__(self, index: Union[int, slice]) -> None: ...
Expand Down Expand Up @@ -75,7 +87,11 @@ class Tokenizer:
def error(self, msg: str, offset: int = ...) -> _Error: ...

def fix_flags(src: Union[str, bytes], flag: int) -> int: ...
def parse(str: str, flags: int = ..., pattern: Pattern = ...) -> SubPattern: ...
_TemplateType = Tuple[List[Tuple[int, int]], List[str]]
def parse_template(source: str, pattern: _Pattern[Any]) -> _TemplateType: ...
if sys.version_info >= (3, 8):
def parse(str: str, flags: int = ..., state: State = ...) -> SubPattern: ...
def parse_template(source: str, state: _Pattern[Any]) -> _TemplateType: ...
else:
def parse(str: str, flags: int = ..., pattern: Pattern = ...) -> SubPattern: ...
def parse_template(source: str, pattern: _Pattern[Any]) -> _TemplateType: ...
def expand_template(template: _TemplateType, match: Match[Any]) -> str: ...
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