Comment #3 on issue 1953 by smichr: inconsistency between "in" and "has"
http://code.google.com/p/sympy/issues/detail?id=1953
What I am saying in the previous comment is that if you change the == to is
in
__contains__ then ode's in ode's docstrings start to fail and I imagine
that it is
because now derivatives that passed as being "==" don't pass as being "is"
and
something is breaking down.
The (what seems to me) odd behavior of Derivative and diff is perhaps
another issue
that I'm not pursuing right now, but I think it should be looked at.
--
You received this message because you are subscribed to the Google Groups
"sympy-issues" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sympy-issues?hl=en.
