Sometimes, we want to find overlapping matches with a regex with Python.
In this article, we’ll look at how to find overlapping matches with a regex with Python.
How to find overlapping matches with a regex with Python?
To find overlapping matches with a regex with Python, we can use the re.finall method with the r'(?=(\w\w))' regex string.
We have (?=...) to add a lookahead assertion to let us find overlapping matches.
For instance, we write:
import re
matches = re.findall(r'(?=(\w\w))', 'hello')
print(matches)
We call re.findall with the regex string and the string we want to find the matches for.
Therefore, matches is:
['he', 'el', 'll', 'lo']
Conclusion
To find overlapping matches with a regex with Python, we can use the re.finall method with the r'(?=(\w\w))' regex string.
We have (?=...) to add a lookahead assertion to let us find overlapping matches.
