On Fri, 05 Dec 2014 15:01:51 +0800, telnetgm...@gmail.com wrote:
> Why the following code gives me errors??? And why the print statement run 2
> times? ...
> addrnum_dict = {'a':1,'b':2}
> def orderaddrtimes():
> global addrnum_dict
> print type(addrnum_dict)
>
> addrnum_dict = sorted(addrnum_dict.iteritems(), key=lambda d:d[1],
> reverse = True)
> #addrnum_dict = OrderedDict(sorted(addrnum_dict.items(), key=lambda t:
> t[0]))
> if __name__ == '__main__':
> kinds = ["a","b"]
> for tmp_kind in kinds:
> orderaddrtimes()
The print statement runs twice because you're calling orderaddrtimes
twice, once for "a" and once for "b."
addrnum_dict becomes a list when you bind it to the return value from
sorted on the first call to orderaddrtimes; you get the error on the
second call.
HTH,
Dan
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