| Server IP : 79.136.114.73 / Your IP : 216.73.216.25 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/local/lib/python3.6/site-packages/pip/_internal/utils/ |
Upload File : |
"""Utilities for defining models
"""
import operator
from typing import Any, Callable, Type
class KeyBasedCompareMixin:
"""Provides comparison capabilities that is based on a key"""
__slots__ = ["_compare_key", "_defining_class"]
def __init__(self, key: Any, defining_class: Type["KeyBasedCompareMixin"]) -> None:
self._compare_key = key
self._defining_class = defining_class
def __hash__(self) -> int:
return hash(self._compare_key)
def __lt__(self, other: Any) -> bool:
return self._compare(other, operator.__lt__)
def __le__(self, other: Any) -> bool:
return self._compare(other, operator.__le__)
def __gt__(self, other: Any) -> bool:
return self._compare(other, operator.__gt__)
def __ge__(self, other: Any) -> bool:
return self._compare(other, operator.__ge__)
def __eq__(self, other: Any) -> bool:
return self._compare(other, operator.__eq__)
def _compare(self, other: Any, method: Callable[[Any, Any], bool]) -> bool:
if not isinstance(other, self._defining_class):
return NotImplemented
return method(self._compare_key, other._compare_key)