Skip to content

fix: dev: added inequality method (fixes #26) #28

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
tommilligan wants to merge 1 commit into from
Closed

fix: dev: added inequality method (fixes #26) #28

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
28 changes: 27 additions & 1 deletion colour.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -927,10 +927,25 @@ class Color(object):
Equality support
----------------

Color objects can be compared for equality.

>>> Color('white')._is_comparable(Color('yellow'))
True
>>> Color('white')._is_comparable('yellow')
False
>>> Color('white')._is_comparable(255)
False

Default equality is RGB hex comparison:

>>> Color('red') == Color('blue')
False
>>> Color('red') == Color('red')
True
>>> Color('red') != Color('blue')
True
>>> Color('red') != Color('red')
False

But this can be changed:

Expand Down Expand Up @@ -1086,11 +1101,22 @@ def __str__(self):
def __repr__(self):
return "<Color %s>" % self.web

##
## Comparisons
##

def _is_comparable(self, other):
return isinstance(other, Color)

def __eq__(self, other):
if isinstance(other, Color):
if self._is_comparable(other):
return self.equality(self, other)
return NotImplemented

def __ne__(self, other):
if self._is_comparable(other):
return not self.equality(self, other)
return NotImplemented

RGB_equivalence = lambda c1, c2: c1.hex_l == c2.hex_l
HSL_equivalence = lambda c1, c2: c1._hsl == c2._hsl
Expand Down