#9016: make morphisms hashable
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Reporter: burcin | Owner: AlexGhitza
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.6
Component: categories | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: Robert Bradshaw
Authors: Burcin Erocal | Merged in:
Dependencies: | Stopgaps:
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Comment (by tscrim):
Looks much better now. Two more minor things (sorry for not noticing this
earlier):
- Move the `from copy import copy` from the header of `morphism.pyx` to
{{{
if not im_gens.is_immutable():
from copy import copy
im_gens = copy(im_gens)
im_gens.set_immutable()
}}}
(or perhaps a `lazy_import`)
This should make the startup plugin happy.
- Could you add a (short) description such as {{{Return the hash of
``self``}}} to each `__hash__()` function.
After this, that should be it. Thank you.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9016#comment:16>
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