Does Python have a string 'contains' substring method?

No python doesn't have a 'contains' substring method. Instead you could use either of the below 2 methods:

Python has a keyword 'in' for finding if a string is a substring of another string. For example,

>>> 'ello' in 'hello world'
True
>>> 'no' in 'hello'
False

If you also need the first index of the substring, you can use find(substr) to find the index. If this method returns -1, it means that substring doesn't exist in the string. For example,

>>> 'hello world'.find('ello')
1
>>> 'hello'.find('no')
-1

Rajendra Dharmkar

Published on 12-Dec-2017 13:24:16

• Related Questions & Answers
• How does $('iframe').ready() method work in jQuery?
• What does 'is' operator do in Python?
• What does 'in' operator do in Python?
• What does colon ':' operator do in Python?
• What does the 'b' character do in front of a string literal in Python?
• What does 'is not' operator do in Python?
• What does 'not in' operator do in Python?
• Program to find number of string we can make where 'a' can be 'a' or 'b', and 'b' remains 'b'in Python
• How and why does 'z'['toUpperCase']() in JavaScript work?
• How does parameters 'c' and 'cmap' behave in a Matplotlib scatter plot?
• How does the 'in' operator work on a tuple in Python?
• How does JavaScript 'return' statement work?
• Does 'position: absolute' conflict with flexbox?
• What does '?' do in C/C++?
• What does 'weight' do in tkinter?