Add two dicts
Greg Brunet
gregbrunet at NOSPAMsempersoft.com
Sat Aug 30 03:48:20 EDT 2003
"Greg Brunet" <gregbrunet at NOSPAMsempersoft.com> wrote in message
news:vl0heutm63na0 at corp.supernews.com...
> "Greg Brunet" <gregbrunet at NOSPAMsempersoft.com> wrote in message
> news:vl0gbotgl3sibf at corp.supernews.com...
> > But what about something like this:
> >
> > >>> class xdict(dict):
> > ... def __add__(self,dict2):
> > ... result = self.copy()
> > ... result = result.update(dict2)
... I was getting sloppy in the interactive mode. Instead I did this &
it seems to work properly:
class xdict(dict):
def add(self,dict2):
result = self.copy()
result.update(dict2)
return result
def __add__(self,dict2):
result = self.copy()
result.update(dict2)
return result
def __iadd__(self,dict2):
self.update(dict2)
return self
a=xdict({'x':1})
b=xdict({'y':2})
print
print "Add:", a.add(b)
print "+:", a+b
print "a:",a,"b:",b
a+=b
print "+= (a=):", a
Results:
Add: {'y': 2, 'x': 1}
+: {'y': 2, 'x': 1}
a: {'x': 1} b: {'y': 2}
+= (a=): {'y': 2, 'x': 1}
--
Greg
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