##// END OF EJS Templates
interfaces: add the optional `bdiff.xdiffblocks()` method...
interfaces: add the optional `bdiff.xdiffblocks()` method PyCharm flagged where this was called on the protocol class in `mdiff.py` in the previous commit, but pytype completely missed it. PyCharm is correct here, but I'm committing this separately to highlight this potential problem- some of the implementations don't implement _all_ of the methods the others do, and there's not a great way to indicate on a protocol class that a method or attribute is optional- that's kinda the opposite of what static typing is about. Making the method an `Optional[Callable]` attribute works here, and keeps both PyCharm and pytype happy, and the generated `mdiff.pyi` and `modules.pyi` look reasonable. We might be getting a little lucky, because the method isn't invoked directly- it is returned from another method that selects which block function to use. Except since it is declared on the protocol class, every module needs this attribute (in theory, but in practice this doesn't seem to be checked), so the check for it on the module has to change from `hasattr()` to `getattr(..., None)`. We defer defining the optional attrs to the type checking phase as an extra precaution- that way it isn't an attr with a `None` value at runtime if someone is still using `hasattr()`. As to why pytype missed this, I have no clue. The generated `mdiff.pyi` even has the global variable typed as `bdiff: intmod.BDiff`, so uses of it really should comply with what is on the class, protocol class or not.

File last commit:

r50538:e1c586b9 default
r52827:09f3a679 default
Show More
__init__.py
79 lines | 1.6 KiB | text/x-python | PythonLexer
Matt Harbison
attr: vendor 22.1.0...
r50538 # SPDX-License-Identifier: MIT
import sys
from functools import partial
Siddharth Agarwal
thirdparty: vendor attrs...
r34398
Matt Harbison
attr: vendor 22.1.0...
r50538 from . import converters, exceptions, filters, setters, validators
from ._cmp import cmp_using
from ._config import get_run_validators, set_run_validators
from ._funcs import asdict, assoc, astuple, evolve, has, resolve_types
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 from ._make import (
Matt Harbison
attr: vendor 22.1.0...
r50538 NOTHING,
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 Attribute,
Factory,
Matt Harbison
attr: vendor 22.1.0...
r50538 attrib,
attrs,
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 fields,
Matt Harbison
attr: vendor 22.1.0...
r50538 fields_dict,
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 make_class,
validate,
)
Matt Harbison
attr: vendor 22.1.0...
r50538 from ._version_info import VersionInfo
Siddharth Agarwal
thirdparty: vendor attrs...
r34398
Matt Harbison
attr: vendor 22.1.0...
r50538 __version__ = "22.1.0"
__version_info__ = VersionInfo._from_version_string(__version__)
Siddharth Agarwal
thirdparty: vendor attrs...
r34398
__title__ = "attrs"
__description__ = "Classes Without Boilerplate"
Matt Harbison
attr: vendor 22.1.0...
r50538 __url__ = "https://www.attrs.org/"
__uri__ = __url__
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 __doc__ = __description__ + " <" + __uri__ + ">"
__author__ = "Hynek Schlawack"
__email__ = "hs@ox.cx"
__license__ = "MIT"
__copyright__ = "Copyright (c) 2015 Hynek Schlawack"
Matt Harbison
attr: vendor 22.1.0...
r50538 s = attributes = attrs
ib = attr = attrib
dataclass = partial(attrs, auto_attribs=True) # happy Easter ;)
Siddharth Agarwal
thirdparty: vendor attrs...
r34398
__all__ = [
"Attribute",
"Factory",
"NOTHING",
"asdict",
"assoc",
"astuple",
"attr",
"attrib",
"attributes",
"attrs",
Matt Harbison
attr: vendor 22.1.0...
r50538 "cmp_using",
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 "converters",
"evolve",
"exceptions",
"fields",
Matt Harbison
attr: vendor 22.1.0...
r50538 "fields_dict",
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 "filters",
"get_run_validators",
"has",
"ib",
"make_class",
Matt Harbison
attr: vendor 22.1.0...
r50538 "resolve_types",
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 "s",
"set_run_validators",
Matt Harbison
attr: vendor 22.1.0...
r50538 "setters",
Siddharth Agarwal
thirdparty: vendor attrs...
r34398 "validate",
"validators",
]
Matt Harbison
attr: vendor 22.1.0...
r50538
if sys.version_info[:2] >= (3, 6):
from ._next_gen import define, field, frozen, mutable # noqa: F401
__all__.extend(("define", "field", "frozen", "mutable"))