> > Hi folks, > > > > There is a withdrawn PEP about a new syntax for dict comprehension: > > http://www.python.org/dev/peps/pep-0274/ which says: > > > > "Substantially all of its benefits were subsumed by generator > > expressions coupled with the dict() constructor." > > > > What does the author mean here? What's the Preferably One Way (TM) to > > do something analogous to a dict comprehension? > > > See about generator expressions in > http://www.python.org/doc/2.4/whatsnew/node4.html. > > The dict builtin can build a dictionary from a list (or iterator or > generator creating a list) of tuples. Put them together and get what > you might be tempted to call a dictionary comprehension. For instance: > > >>> dict((i,i*i) for i in range(10)) > {0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81}
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