Python check if string got a certain word (or combination of characters)

Question

Ok so I have this string (for example):

var = "I eat breakfast."

What i would like to do is to check if that string contains "ea".

Answer 1

Use word in sentence. For example:

>>> 'el' in 'Hello'
True
>>> 'xy' in 'Hello'
False

For your reference, check: python in operator use cases

Answer 2

Simple:

>>> var = "I eat breakfast."
>>> 'ea' in var
True

I'm not clear what you mean by "put those values into a list." I assume you mean the words:

>>> [w for w in var.split() if 'ea' in w]
['eat', 'breakfast.']

Answer 3

This is a duplicate of Finding multiple occurrences of a string within a string in Python

You can use find(str, startIndex) like so:

var = "I eat breakfast."

locations = []
index = 0
while index < len(var):
  index = var.find('ea', index)
  if index == -1:
    break
  locations.append(index)
  index += 2

locations is a list of the indices where 'ea' was found.

Answer 4

You can use in to check if a string contains a substring. It also sounds like you want to add var to a list if it contains a substring. Observe the following interactive session:

In [1]: var = "I eat breakfast."

In [2]: lst = []

In [3]: if "ea" in var:
   ...:     lst.append(var)
   ...:     

In [4]: lst
Out[4]: ['I eat breakfast.']