how can I count strings?-CodePudding

what should we do if we want to count specific string or int. like I want to know how many 'p' in my list = ['hello world lets play ping pong] is there any operator or method in python that I can use?

CodePudding user response：

You can do it using a simple for loop.

count = 0
test_str = "hello world lets play ping pong"
  
for i in test_str:
    if i == 'p':
        count = count   1

Or if you prefer you can do the following

count = test_str.count('p')

CodePudding user response：

count = 0

list = ["hello world lets play ping pong"]

for i in list[0]:

if i == 'p':

count = count 1

print(count)

output: 3

CodePudding user response：

It's not quite clear what your list looks like since you have not provided a valid list.

However assuming that your list looks something like below, try this -

l = ['hello','world', 'lets', 'play', 'ping', 'pong']
sum([i.count('p') for i in l])

If its a string and not a list, then it's even simpler -

l = ['hello world lets play ping pong']
l[0].count('p')

Read more about list.count() method here or str.count() here