Finding specific words/combination in a continuous String in python

Asked Jan 17 '16 at 11:23

Active Jan 17 '16 at 11:26

Viewed 869 times

So I'm curious, how do I find specific combination of word in a continuous string?

I'm really new to python and here's the simplest code I've written.

#find amount of bob(s) in the string
s = 'azcbobobegghakl'
count = 0
for letter in s:
    if letter == 'bob':
        count += 1

print count

The count works fine if letter == 'a single letter', but it won't count the amount of "bob"s that appears in the continuous string (which in this case is 2).

asked Jan 17 '16 at 11:23

Isfan Gunawan

1

@Delgan: That won't work, since the OP wants to allow overlapping matches. – PM 2Ring Jan 17 '16 at 11:26
@PM2Ring are you sure? Where does he say that? – timgeb Jan 17 '16 at 11:27
Sorry, then, I read to fast. – Delgan Jan 17 '16 at 11:27
@timgeb: He expects a count of 2 for the sample data `azcbobobegghakl'` – PM 2Ring Jan 17 '16 at 11:27
@timgeb: Nice dupe target; it's even got the same test data. :) Pity neither of those questions have timeit speed tests on the various approaches, but I _suspect_ that the `str.find`-based approaches won't be faster than using regex. – PM 2Ring Jan 17 '16 at 11:34

Finding specific words/combination in a continuous String in python

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