On Jan 23, 3:34 pm, Chris Rebert <c...@rebertia.com> wrote:
> On Jan 22, 2013 11:31 PM, "moonhkt" <moon...@gmail.com> wrote:
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> > Hi Al
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> > I have Data file have below
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> > Data file
> > V1
> > V2
> > V3
> > V4
> > V4
> > V3
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> > How to using count number of data ?
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> > Output
> > V1 = 1
> > V2 = 1
> > V3 =2
> > V4 = 2
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> Construct a frequency table using collections.Counter:
>
> http://docs.python.org/2.7/library/collections.html#collections.Counter
What is problem for below ?
#!/usr/bin/env python
# Python hash {}
# Python Lists []
global age
karry = "ER"
k1 = "EU"
age = {}
age[karry] = 3
age[k1] = 5
def ABC():
global age
global karry
i = 0
a = "A B"
karry = a.split()
age[karry[0]] += 1
ABC()
for key in age:
print key, age[key]
Result
ex_array.py
Traceback (most recent call last):
File "ex_array.py", line 21, in <module>
ABC()
File "ex_array.py", line 18, in ABC
age[karry[0]] += 1
KeyError: 'A'
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