Apr 12, 2017 · Mar 29, 2017
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
        # All the error checking may be unnecessary; but this method
        # is called so seldom that the overhead is negligible.
        if not isinstance(a, Axes):
            raise ValueError("second argument,%s, is not an Axes" % a)
            raise ValueError("second argument,{!r}, is not an Axes".format(a))
        try:
            hash(key)
        except TypeError:
            raise ValueError("first argument, %s, is not a valid key" % key)
            raise ValueError(
                "first argument, {!r}, is not a valid key".format(key))

        a_existing = self.get(key)
        if a_existing is not None:
            Stack.remove(self, (key, a_existing))
            warnings.warn(
                "key%s already existed; Axes is being replaced" %key)
                "key{!r} already existed; Axes is being replaced".format(key))
            # I don't think the above should ever happen.

        if a in self:
diff --git a/lib/matplotlib/transforms.py b/lib/matplotlib/transforms.py
        raise TypeError(
            "Can not add Transform to object of type '%s'" % type(other))

    def __eq__(self, other):
        # equality is based on transform object id. Hence:
        # Transform() != Transform().
        # Some classes, such as TransformWrapper & AffineBase, will override.
        return self is other
    # Equality is based on object identity for `Transform`s (so we don't
    # override `__eq__`), but some subclasses, such as TransformWrapper &
    # AffineBase, override this behavior.

    def _iter_break_from_left_to_right(self):
        """
Original file line number	Diff line number	Diff line change
Expand Up		@@ -118,17 +118,18 @@ def add(self, key, a):
		# All the error checking may be unnecessary; but this method
		# is called so seldom that the overhead is negligible.
		if not isinstance(a, Axes):
		raise ValueError("second argument,%s, is not an Axes" % a)
		raise ValueError("second argument,{!r}, is not an Axes".format(a))
		try:
		hash(key)
		except TypeError:
		raise ValueError("first argument, %s, is not a valid key" % key)
		raise ValueError(
		"first argument, {!r}, is not a valid key".format(key))

		a_existing = self.get(key)
		if a_existing is not None:
		Stack.remove(self, (key, a_existing))
		warnings.warn(
		"key%s already existed; Axes is being replaced" %key)
		"key{!r} already existed; Axes is being replaced".format(key))
		# I don't think the above should ever happen.

		if a in self:
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1156,11 +1156,9 @@ def __radd__(self, other):
		raise TypeError(
		"Can not add Transform to object of type '%s'" % type(other))

		def __eq__(self, other):
		# equality is based on transform object id. Hence:
		# Transform() != Transform().
		# Some classes, such as TransformWrapper & AffineBase, will override.
		return self is other
		# Equality is based on object identity for `Transform`s (so we don't
		# override `__eq__`), but some subclasses, such as TransformWrapper &
		# AffineBase, override this behavior.

		def _iter_break_from_left_to_right(self):
		"""
Expand Down