Puzzle: anonymous tuple unpacking w/o eval
Edward K. Ream
edreamleo at charter.net
Fri May 16 08:29:43 EDT 2003
For a long time I've wondered how to generalize tuple unpacking, such as:
a,b,c = (val1,val2,val3)
so that it isn't necessary for code to know the names of vars or ivars.
Eval can be used sometimes:
aList = (("a",val1),("b",val2),("c",val3))
...
for name,val in aList:
eval("%s=%s" % (name,str(val)))
This only works for string and numeric values where str(val)==repr(val),
sort of.
Anyway, is there any way to get the same effect without using eval? setattr
might be useful, and I haven't figured out how.
Thanks,
Edward
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Edward K. Ream email: edreamleo at charter.net
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