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| author | W. Trevor King <wking@drexel.edu> | 2009-12-05 00:21:35 -0500 |
|---|---|---|
| committer | W. Trevor King <wking@drexel.edu> | 2009-12-05 00:21:35 -0500 |
| commit | 282d5cf934eec5c0ae02a01c345c38d0ad7c9fa7 (patch) | |
| tree | 2bcfa1465362f60136f040d28f3f1d3a7e0d8a07 /libbe/tree.py | |
| parent | e023e7b980f8cfb4c02a0442a39774311e1c5a99 (diff) | |
| download | bugseverywhere-282d5cf934eec5c0ae02a01c345c38d0ad7c9fa7.tar.gz | |
Add __eq__ and __ne__ methods to Tree.
This fixes a bug introduced by
revision-id: wking@drexel.edu-20091205034412-8apqxq8zqim48tf7
committer: W. Trevor King <wking@drexel.edu>
timestamp: Fri 2009-12-04 22:44:12 -0500
message:
Use __cmp__ instead of __eq__ for Tree comparison.
When I made that commit, I'd forgotten that Tree inherits an __eq__
method from list, so it won't fall back to the __cmp__ method to
determine equality. The new __eq__ and __ne__ methods use __cmp__
internally, so further subclasses (e.g. Comment) only need to override
__cmp__. Of course, list also defines __ge__, __gt__, __le__, __lt__,
... which I don't bother with, so stay away from TreeA > TreeB and the
like.
Diffstat (limited to 'libbe/tree.py')
| -rw-r--r-- | libbe/tree.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libbe/tree.py b/libbe/tree.py index d3f6bcd..1daac44 100644 --- a/libbe/tree.py +++ b/libbe/tree.py @@ -87,6 +87,12 @@ class Tree(list): def __cmp__(self, other): return cmp(id(self), id(other)) + def __eq__(self, other): + return self.__cmp__(other) == 0 + + def __ne__(self, other): + return self.__cmp__(other) != 0 + def branch_len(self): """ Exhaustive search every time == SLOW. |