Python - find text in string

In this article, we would like to show you how to find text in string in Python.

Quick solution:

string.find(value, start, end)

Where:

• value - the substring to search for,
• start - specifies where to start the search (default value is 0),
• end - specifies where to end the search (default value is the end of the string).

Note:

The find() method returns -1 if the substring wasn't found. 

Practical example

In this example, we use string.find() method to find the first occurrence of the specified substring.

letters = "ABCDE"

print(letters.find("A"))         # 0
print(letters.find("A", 2, 4))   # -1

print(letters.find("CD"))        # 2
print(letters.find("CD", 1, 3))  # -1

Output:

0
-1
2
-1

Note:

The find() method is similar to the index() method, but the index() method raises an exception instead of -1 when the substring wasn't found.