Here is the logic for searching single CHAR using regular expression(Regex). For instance, we use wildcards to search for anything on our computers. The Regex in Python works similarly.
Regular expression
People use asterisk * for searching any document. For instance, if you type *.pdf, it returns all the pdfs available in the location (where you are conducting your search). Similar way, in Python, you can search using regular expressions.
Import Regex
The first thing you need to do is import 're' if you want to work with regular expressions.
Example program: search for single CHAR
To match any single character, you can use [….]. Below, you will find an example to search for: 'l' or 'a' or 'b'import re
pattern = r'[lab]'
sequence = 'we love python'
obj = re.search(pattern,sequence)
if obj:
print("We found a match here @",obj.group())
else:
print("Sorry no match found.")
The word 'love' has the letter 'l'. Hence, a match is found.
The output is as below:
We found a match here @ l
We found a match here @ l