What is the preferred way to count the number of ocurrences of a certain character in a string?

Question

How do I do this without string.count(), because it is listed as deprecated in Python v2.7.3 documentation?

I am unable to find what I should use instea

Answer 1

sentence = str(input("Write a Sentence: "))
count = 0
for word in sentence:
    if word == " ":
    count = count + 1
print(count+1)

Answer 2

Without using count you can do this:

def my_count(my_string, key_char):
    return sum(c == key_char for c in my_string)

Result:

>>> my_count('acavddgaaa','a')
5

Answer 3

The other way can be

strs.__len__()

Answer 4

This works fine in 2.7.3

>>> strs='aabbccddaa'
>>> strs.count('a')
4

Answer 5

Use str.count() - it's not listed as deprecated.

(Python 2.7.3, Python 3.2.3 - both have no notes about being deprecated).

>>> "test".count("t")
2

I'll presume you meant string.count() - which is depreciated in favour of the method on string objects.

The difference is that str.count() is a method on string objects, while string.count() is a function in the string module.

>>> "test".count("t")
2
>>> import string
>>> string.count("test", "t")
2

It's clear why the latter has been deprecated (and removed in 3.x) in favour of the former.

Answer 6

Use len():

>>> len('abcd')
4