Find Patterns of 10plus1 in a String Using Python Regex

The term "10plus1" is a specific pattern in a binary string that starts with a digit '1' followed by at least one or more '0' and ending with a '1'. In regular expressions this pattern is represented as -

10+ 1

Using re.findall()

The re.findall() method accepts a pattern and a string as parameters, finds the given pattern in the entire string, and returns all the matches in the form of a list.

To find the patterns of "10+1" in a given string, we just need to pass the same as pattern to the findall() method along with the string.

Example

In the following example, we will use the re.findall() function to find that 10plus1 is a string -

import re
res = re.findall("10+1", ""10000001 hello world 10011 test100000001test.")
print(res)

The output returned by the above code is as follows -

['10000001', '1001', '100000001']