X-Git-Url: https://git.notmuchmail.org/git?a=blobdiff_plain;f=bindings%2Fpython-cffi%2Fnotmuch2%2F_tags.py;h=ee5d2a34b2c210540b131539c3b0d159ee942a82;hb=6c84dee53193a78cf797b44d3febcc14488ea6b1;hp=212852a88ea60c7a9887345606d612f5bdcedd64;hpb=34c5233894f5143baaf5d4fc94df68fc186409d6;p=notmuch

diff --git a/bindings/python-cffi/notmuch2/_tags.py b/bindings/python-cffi/notmuch2/_tags.py
index 212852a8..ee5d2a34 100644
--- a/bindings/python-cffi/notmuch2/_tags.py
+++ b/bindings/python-cffi/notmuch2/_tags.py
@@ -110,6 +110,27 @@ class ImmutableTagSet(base.NotmuchObject, collections.abc.Set):
     def __eq__(self, other):
         return tuple(sorted(self.iter())) == tuple(sorted(other.iter()))
 
+    def issubset(self, other):
+        return self <= other
+
+    def issuperset(self, other):
+        return self >= other
+
+    def union(self, other):
+        return self | other
+
+    def intersection(self, other):
+        return self & other
+
+    def difference(self, other):
+        return self - other
+
+    def symmetric_difference(self, other):
+        return self ^ other
+
+    def copy(self):
+        return set(self)
+
     def __hash__(self):
         return hash(tuple(self.iter()))
 
@@ -140,7 +161,7 @@ class MutableTagSet(ImmutableTagSet, collections.abc.MutableSet):
     """
 
     # Since we subclass ImmutableTagSet we inherit a __hash__.  But we
-    # are mutable, setting it to None will make the Python machinary
+    # are mutable, setting it to None will make the Python machinery
     # recognise us as unhashable.
     __hash__ = None
 
@@ -158,7 +179,7 @@ class MutableTagSet(ImmutableTagSet, collections.abc.MutableSet):
 
         :raises TypeError: If the tag is not a valid type.
         :raises TagTooLongError: If the added tag exceeds the maximum
-           lenght, see ``notmuch_cffi.NOTMUCH_TAG_MAX``.
+           length, see ``notmuch_cffi.NOTMUCH_TAG_MAX``.
         :raises ReadOnlyDatabaseError: If the database is opened in
            read-only mode.
         """
@@ -183,7 +204,7 @@ class MutableTagSet(ImmutableTagSet, collections.abc.MutableSet):
 
         :raises TypeError: If the tag is not a valid type.
         :raises TagTooLongError: If the tag exceeds the maximum
-           lenght, see ``notmuch_cffi.NOTMUCH_TAG_MAX``.
+           length, see ``notmuch_cffi.NOTMUCH_TAG_MAX``.
         :raises ReadOnlyDatabaseError: If the database is opened in
            read-only mode.
         """
@@ -265,7 +286,7 @@ class MutableTagSet(ImmutableTagSet, collections.abc.MutableSet):
 class TagsIter(base.NotmuchObject, collections.abc.Iterator):
     """Iterator over tags.
 
-    This is only an interator, not a container so calling
+    This is only an iterator, not a container so calling
     :meth:`__iter__` does not return a new, replenished iterator but
     only itself.