FM / dns

/usr/lib/python3.9/site-packages/dns

Name	Size	Mode	Actions
dnssecalgs/	-	0755	rm
quic/	-	0755	rm
rdtypes/	-	0755	rm
__pycache__/	-	0755	rm
asyncbackend.py	2796	0644	edit dl rm
asyncquery.py	26850	0644	edit dl rm
asyncresolver.py	17852	0644	edit dl rm
dnssec.py	40693	0644	edit dl rm
dnssectypes.py	1799	0644	edit dl rm
e164.py	3978	0644	edit dl rm
edns.py	15263	0644	edit dl rm
entropy.py	4242	0644	edit dl rm
enum.py	3691	0644	edit dl rm
exception.py	5957	0644	edit dl rm
flags.py	2750	0644	edit dl rm
grange.py	2148	0644	edit dl rm
immutable.py	2017	0644	edit dl rm
inet.py	5772	0644	edit dl rm
ipv4.py	2552	0644	edit dl rm
ipv6.py	6600	0644	edit dl rm
message.py	65993	0644	edit dl rm
name.py	42672	0644	edit dl rm
namedict.py	4000	0644	edit dl rm
nameserver.py	9909	0644	edit dl rm
node.py	12663	0644	edit dl rm
opcode.py	2730	0644	edit dl rm
query.py	54832	0644	edit dl rm
rcode.py	4156	0644	edit dl rm
rdata.py	29456	0644	edit dl rm
rdataclass.py	2984	0644	edit dl rm
rdataset.py	16756	0644	edit dl rm
rdatatype.py	7339	0644	edit dl rm
renderer.py	11254	0644	edit dl rm
resolver.py	73552	0644	edit dl rm
reversename.py	3828	0644	edit dl rm
rrset.py	9170	0644	edit dl rm
serial.py	3606	0644	edit dl rm
set.py	9088	0644	edit dl rm
tokenizer.py	23583	0644	edit dl rm
transaction.py	22636	0644	edit dl rm
tsig.py	11413	0644	edit dl rm
tsigkeyring.py	2633	0644	edit dl rm
ttl.py	2979	0644	edit dl rm
update.py	12243	0644	edit dl rm
version.py	1926	0644	edit dl rm
versioned.py	11765	0644	edit dl rm
win32util.py	9107	0644	edit dl rm
wire.py	2830	0644	edit dl rm
xfr.py	13273	0644	edit dl rm
zone.py	52086	0644	edit dl rm
zonefile.py	27929	0644	edit dl rm
zonetypes.py	690	0644	edit dl rm
_asyncbackend.py	2360	0644	edit dl rm
_asyncio_backend.py	8971	0644	edit dl rm
_ddr.py	5247	0644	edit dl rm
_features.py	2384	0644	edit dl rm
_immutable_ctx.py	2459	0644	edit dl rm
__init__.py	1663	0644	edit dl rm

Edit: /usr/lib/python3.9/site-packages/dns/set.py (9088B)

# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license

# Copyright (C) 2003-2017 Nominum, Inc.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import itertools

class Set:
    """A simple set class.

This class was originally used to deal with sets being missing in
    ancient versions of python, but dnspython will continue to use it
    as these sets are based on lists and are thus indexable, and this
    ability is widely used in dnspython applications.
    """

__slots__ = ["items"]

def __init__(self, items=None):
        """Initialize the set.

*items*, an iterable or ``None``, the initial set of items.
        """

self.items = dict()
        if items is not None:
            for item in items:
                # This is safe for how we use set, but if other code
                # subclasses it could be a legitimate issue.
                self.add(item)  # lgtm[py/init-calls-subclass]

def __repr__(self):
        return "dns.set.Set(%s)" % repr(list(self.items.keys()))

def add(self, item):
        """Add an item to the set."""

if item not in self.items:
            self.items[item] = None

def remove(self, item):
        """Remove an item from the set."""

try:
            del self.items[item]
        except KeyError:
            raise ValueError

def discard(self, item):
        """Remove an item from the set if present."""

self.items.pop(item, None)

def pop(self):
        """Remove an arbitrary item from the set."""
        (k, _) = self.items.popitem()
        return k

def _clone(self) -> "Set":
        """Make a (shallow) copy of the set.

There is a 'clone protocol' that subclasses of this class
        should use.  To make a copy, first call your super's _clone()
        method, and use the object returned as the new instance.  Then
        make shallow copies of the attributes defined in the subclass.

This protocol allows us to write the set algorithms that
        return new instances (e.g. union) once, and keep using them in
        subclasses.
        """

if hasattr(self, "_clone_class"):
            cls = self._clone_class  # type: ignore
        else:
            cls = self.__class__
        obj = cls.__new__(cls)
        obj.items = dict()
        obj.items.update(self.items)
        return obj

def __copy__(self):
        """Make a (shallow) copy of the set."""

return self._clone()

def copy(self):
        """Make a (shallow) copy of the set."""

return self._clone()

def union_update(self, other):
        """Update the set, adding any elements from other which are not
        already in the set.
        """

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        if self is other:  # lgtm[py/comparison-using-is]
            return
        for item in other.items:
            self.add(item)

def intersection_update(self, other):
        """Update the set, removing any elements from other which are not
        in both sets.
        """

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        if self is other:  # lgtm[py/comparison-using-is]
            return
        # we make a copy of the list so that we can remove items from
        # the list without breaking the iterator.
        for item in list(self.items):
            if item not in other.items:
                del self.items[item]

def difference_update(self, other):
        """Update the set, removing any elements from other which are in
        the set.
        """

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        if self is other:  # lgtm[py/comparison-using-is]
            self.items.clear()
        else:
            for item in other.items:
                self.discard(item)

def symmetric_difference_update(self, other):
        """Update the set, retaining only elements unique to both sets."""

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        if self is other:  # lgtm[py/comparison-using-is]
            self.items.clear()
        else:
            overlap = self.intersection(other)
            self.union_update(other)
            self.difference_update(overlap)

def union(self, other):
        """Return a new set which is the union of ``self`` and ``other``.

Returns the same Set type as this set.
        """

obj = self._clone()
        obj.union_update(other)
        return obj

def intersection(self, other):
        """Return a new set which is the intersection of ``self`` and
        ``other``.

Returns the same Set type as this set.
        """

obj = self._clone()
        obj.intersection_update(other)
        return obj

def difference(self, other):
        """Return a new set which ``self`` - ``other``, i.e. the items
        in ``self`` which are not also in ``other``.

Returns the same Set type as this set.
        """

obj = self._clone()
        obj.difference_update(other)
        return obj

def symmetric_difference(self, other):
        """Return a new set which (``self`` - ``other``) | (``other``
        - ``self), ie: the items in either ``self`` or ``other`` which
        are not contained in their intersection.

Returns the same Set type as this set.
        """

obj = self._clone()
        obj.symmetric_difference_update(other)
        return obj

def __or__(self, other):
        return self.union(other)

def __and__(self, other):
        return self.intersection(other)

def __add__(self, other):
        return self.union(other)

def __sub__(self, other):
        return self.difference(other)

def __xor__(self, other):
        return self.symmetric_difference(other)

def __ior__(self, other):
        self.union_update(other)
        return self

def __iand__(self, other):
        self.intersection_update(other)
        return self

def __iadd__(self, other):
        self.union_update(other)
        return self

def __isub__(self, other):
        self.difference_update(other)
        return self

def __ixor__(self, other):
        self.symmetric_difference_update(other)
        return self

def update(self, other):
        """Update the set, adding any elements from other which are not
        already in the set.

*other*, the collection of items with which to update the set, which
        may be any iterable type.
        """

for item in other:
            self.add(item)

def clear(self):
        """Make the set empty."""
        self.items.clear()

def __eq__(self, other):
        return self.items == other.items

def __ne__(self, other):
        return not self.__eq__(other)

def __len__(self):
        return len(self.items)

def __iter__(self):
        return iter(self.items)

def __getitem__(self, i):
        if isinstance(i, slice):
            return list(itertools.islice(self.items, i.start, i.stop, i.step))
        else:
            return next(itertools.islice(self.items, i, i + 1))

def __delitem__(self, i):
        if isinstance(i, slice):
            for elt in list(self[i]):
                del self.items[elt]
        else:
            del self.items[self[i]]

def issubset(self, other):
        """Is this set a subset of *other*?

Returns a ``bool``.
        """

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        for item in self.items:
            if item not in other.items:
                return False
        return True

def issuperset(self, other):
        """Is this set a superset of *other*?

Returns a ``bool``.
        """

if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        for item in other.items:
            if item not in self.items:
                return False
        return True

def isdisjoint(self, other):
        if not isinstance(other, Set):
            raise ValueError("other must be a Set instance")
        for item in other.items:
            if item in self.items:
                return False
        return True

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