On 03/19/2013 10:54 PM, Phil wrote:
Thank you for reading this.
>
> I'm working my way through a series of exercises where the author
only provides a few solutions.
>
> The reader is asked to modify the histogram example so that it uses
the get method thereby eliminating the if and else statements.
Histogram2 is my effort.
>
> The resulting dictionary only contains the default value provided by
"get" and I cannot see how the value can be incremented without an if
statement.
>
> def histogram(s):
> d = dict()
> for c in s:
> if c not in d:
> d[c] = 1
> else:
> d[c] += 1
> return d
>
> def histogram2(s):
> d = dict()
> for c in s:
> d[c]= d.get(c, 0)
>
> return d
>
> h = histogram("brontosaurs")
>
> print h
>
> print
>
> print "histogram2"
>
> h = histogram2("brontosaurs")
>
> print h
>
Add + 1
-m
--
Lark's Tongue Guide to Python: http://lightbird.net/larks/
Whenever you find yourself on the side of the majority, it is time to
pause and reflect. Mark Twain
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