getting the following error while accesing python

Question

from collections import Counter
alphas = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
res = ''
for char in alphas:
    res = "{0},{1}|{2}".format(res , char, Counter[char])
    print(res)

TypeError: 'type' object is not subscriptable

Counter is a constructor, not a sequence... plus what is the point of counting a single character one by one in a list? Code doesn't make sense. What are you trying to achieve? — Aleksei Maide
– Aleksei Maide, Commented Jan 24, 2018 at 8:38
I would like to achieve counting characters alone for eg a|23,b|56,...z|12 — praveena
– praveena, Commented Jan 24, 2018 at 8:41

Aleksei Maide · Accepted Answer · 2018-01-24 15:56:06Z

1

Using the Counter it is a lot easier than what you are trying to achieve:

from collections import Counter

alphas = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
print(Counter(alphas))

And if you want to print them in format of "count|letter" then:

res = ''
counts = Counter(alphas)
for count, letter in counts.items():
    res += '{}|{},'.format(count, letter)

print(res)

edited Jan 24, 2018 at 15:56

answered Jan 24, 2018 at 8:44

Aleksei Maide

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6 Comments

praveena Over a year ago

for count, letter in alphas.items(): AttributeError: 'list' object has no attribute 'items'

Aleksei Maide Over a year ago

@praveena sorry mate, I didn't check the code, didn't notice the mistake/semi-typo, but I guess you figured it out now.

SethMMorton Over a year ago

This doesn't actually explain from where the original error originated.

Aleksei Maide Over a year ago

@SethMMorton, the original error originated from him/her trying to invoke a function using square brackets and ... functions are objects as everything in python and the resulting error. I don't think the actual goal was to understand the error, but to get the "program" to work.

SethMMorton Over a year ago

@AlekseiMaide Yes, I know that. The point is that this answer is only half useful. It does direct the OP in how to do what they actually want, but it does not prevent them from making the same original mistake again, nor give them more insight into Python's object model.

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