bidict/_base.py
def copy(self):
        """A shallow copy."""
        # Could just ``return self.__class__(self)`` here instead, but the below is faster. It uses
        # __new__ to create a copy instance while bypassing its __init__, which would result
        # in copying this bidict's items into the copy instance one at a time. Instead, make whole
        # copies of each of the backing mappings, and make them the backing mappings of the copy,
        # avoiding copying items one at a time.
        copy = self.__class__.__new__(self.__class__)
        copy._fwdm = self._fwdm.copy()  # pylint: disable=protected-access
        copy._invm = self._invm.copy()  # pylint: disable=protected-access
        copy._init_inv()  # pylint: disable=protected-access
        return copy
def copy(self):
        # Could just ``return self.__class__(self)`` here instead, but the below is faster. It uses
        # __new__ to create a copy instance while bypassing its __init__, which would result
        # in copying this bidict's items into the copy instance one at a time. Instead, make whole
        # copies of each of the backing mappings, and make them the backing mappings of the copy,
        # avoiding copying items one at a time.
        copy = self.__class__.__new__(self.__class__)
        copy._fwdm = self._fwdm.copy()  # pylint: disable=protected-access
        copy._invm = self._invm.copy()  # pylint: disable=protected-access
        copy._init_inv()  # pylint: disable=protected-access
        return copy
def copy ( self ) : # Could just ``return self.__class__(self)`` here instead, but the below is faster. It uses # __new__ to create a copy instance while bypassing its __init__, which would result # in copying this bidict's items into the copy instance one at a time. Instead, make whole # copies of each of the backing mappings, and make them the backing mappings of the copy, # avoiding copying items one at a time. copy = self . __class__ . __new__ ( self . __class__ ) copy . _fwdm = self . _fwdm . copy ( ) # pylint: disable=protected-access copy . _invm = self . _invm . copy ( ) # pylint: disable=protected-access copy . _init_inv ( ) # pylint: disable=protected-access return copy
A shallow copy.
A shallow copy .