I'm having trouble finding the correct regular expression for the scenario below: Lets say: a = "this is a sample" I want to match whole word - for example match "hi" should return False since "h...

Sep 4, 2010 · I want to filter strings in a list based on a regular expression. Is there something better than [x for x in list if r.match(x)] ?

Oct 29, 2015 · How to match any string from a list of strings in regular expressions in python? Asked 10 years, 2 months ago Modified 4 years ago Viewed 176k times

For future reference, you might find this useful: Regular Expression HOWTO for Python 2.7.

In Python, I can compile a regular expression to be case-insensitive using re.compile:

One of the main concepts you have to understand when dealing with special characters in regular expressions is to distinguish between string literals and the regular expression itself.

4.2.3 re Module Contents escape (string) Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression …

May 1, 2020 · 47 \1 is equivalent to re.search(...).group(1), the first parentheses-delimited expression inside of the regex. It's also, fun fact, part of the reason that regular expressions are significantly …

@Maria - I believe the key here is 'matching' IP addresses, in like: "Here is this 10 Terabyte file/DB, match or list the IP addresses you can find", as opposed to " create a function that receives a string …

Python normally reacts to some escape sequences in its strings, which is why it interprets \( as simple (. You would either have to write \\( or use a raw string, e.g. r'\(' or r"\(". Second, when you use …