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AttributeError when calling 'discard' on copy of 'TraitSetObject' #97

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cfarrow opened this issue Nov 20, 2013 · 0 comments · Fixed by #98
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AttributeError when calling 'discard' on copy of 'TraitSetObject' #97

cfarrow opened this issue Nov 20, 2013 · 0 comments · Fixed by #98
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type: bug

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@cfarrow
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cfarrow commented Nov 20, 2013

Here's how to reproduce this.

from traits.api import HasTraits, Set


class Test(HasTraits):
    s = Set()

    def fail(self):
        s = self.s.copy()
        # Point of failure
        s.discard('foo')

t = Test(s=set(['foo', 'bar']))
t.fail()
rkern added a commit that referenced this issue Nov 20, 2013
@rkern
BUG: Return a true set in TraitSetObject.copy()
f1ff940 
Otherwise, an uninitialized TraitSetObject is returned, and operations on it
will fail.

Fixes #97.
@rkern rkern mentioned this issue Nov 20, 2013
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@mdickinson mdickinson mentioned this issue Jan 10, 2020
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@mdickinson mdickinson mentioned this issue Apr 29, 2020
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BUG: Return a true set in TraitSetObject.copy() enthought/traits
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