Sometimes, we want to use a variable inside a regular expression with Python.
In this article, we’ll look at how to use a variable inside a regular expression with Python.
How to use a variable inside a regular expression with Python?
To use a variable inside a regular expression with Python, we can create regex string with rf.
For instance, we write
if re.search(rf"\b(?=\w){re.escape(TEXTO)}\d{{2}}\b(?!\w)", subject, re.IGNORECASE):
print("match")
to call re.search with the rf"\b(?=\w){re.escape(TEXTO)}\d{{2}}\b(?!\w)" regex string.
We interpolate the string returned by re.escape(TEXTO) in the string.
And we use the string to look for pattersn with the TEXTO value and 2 digits.
Conclusion
To use a variable inside a regular expression with Python, we can create regex string with rf.
