Le jeudi 30 juin 2011 à 19:12 -0500, Sean Vig a écrit : > CG subclasses from AtomicExpr.
Why did you choose that? "Atomic" means that it's not made up of other sympy objects and that methods like .match() will therefore not recurse inside your object. So if you can derive directly from Expr instead of AtomicExpr, you should get the behaviour you want. > On Thu, Jun 30, 2011 at 18:50, Aaron Meurer <[email protected]> > wrote: > What does your CG subclass from? If it's a Function, I think > it > should automatically work, like > > In [50]: a = Wild('a') > > In [51]: f(1, 2).match(f(a, 2)) > Out[51]: {a: 1} > > Aaron Meurer > > > On Thu, Jun 30, 2011 at 3:04 PM, Sean Vig > <[email protected]> wrote: > > Hi everyone, > > For a part of my project I tried using pattern matching > with .match and > > Wild, as described > > > here http://docs.sympy.org/0.7.0/tutorial.html#pattern-matching, to > match > > some instances of a class I am working on, however it does > not currently > > work as I'd hoped in trying to match objects of CG, which > subclasses Expr. > > For example, I'd like to be able to get > >>>> x = Wild('x') > >>>> (CG(1,1,1,1,1,1)).match(CG(x,1,1,1,1,1) > > {x: 1} > > However it currently gives None. I assume I need to > implement some function > > (maybe matches or _matches), but if someone knows a bit more > about pattern > > matching that could advise me here, I'd appreciate it. > Thanks. > > Sean > > > > > -- > > You received this message because you are subscribed to the > Google Groups > > "sympy" 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?hl=en. > > > > -- > You received this message because you are subscribed to the > Google Groups "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to sympy > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > > > > > -- > You received this message because you are subscribed to the Google > Groups "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to sympy > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. -- You received this message because you are subscribed to the Google Groups "sympy" 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?hl=en.
