Comment #6 on issue 1902 by smichr: 'has' method fails when argument
is 'Symbol' or 'Wild'
http://code.google.com/p/sympy/issues/detail?id=1902
Sorry, Raffaele, you are right. I've never worked with that aspect of has
(or with
the option to look for a pattern).
Regarding the efficiency, you might see has_any_symbols() and
has_all_symbols() which
are optimized versions looking for a single symbol. But what you say about
the entire
tree walk is also True and after looking at has_any_symbols and reading the
commit
message about the lack of efficiency of has, I re-wrote it. If you are
working on the
same, you might compare it to what I tried in smichr's github branch 1766.
I am +1 on what you did.
--
You received this message because you are listed in the owner
or CC fields of this issue, or because you starred this issue.
You may adjust your issue notification preferences at:
http://code.google.com/hosting/settings
--
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.
