python .replace() regex [duplicate] Ask Question Asked 12 years, 9 months ago. Modified 2 years, 3 months ago.

I want to replace one parameter's parameter-value with a new value. I am using a line replace function posted previously to replace the line which uses Python's string.replace(pattern, sub). …

If you can, try to tokenize data in this situation (break it into smaller parts based on regex rules) beforehand and replace based on these as this is more likely to be easier to accomplish the …

@Amber: I infer from your answer that unlike str.replace(), we can't use variables a) in raw strings; or b) as an argument to re.sub; or c) both. a) makes sense (I think) but I'm not sure …

Oct 12, 2016 · To further add to the above, the code below shows you how to replace multiple words at once! I've used this to replace 165,000 words in 1 step!! Note \b means no sub string …

Python Regex String Replace. 1. Python regex replace string. 1. Python regular expression replace string ...

A backreference to the whole match value is \g<0>, see re.sub documentation:. The backreference \g<0> substitutes in the entire substring matched by the RE.

This is Python's regex substitution (replace) function. The replacement string can be filled with so-called backreferences (backslash, group number) which are replaced with what was matched …

Feb 6, 2021 · How can I replace strings in a file with using regular expressions in Python? I want to open a file in which I should replace strings for other strings and we need to use regular …

Jun 29, 2011 · If you want it to work regardless of the character order, you need to put the regex in square brackets: re.sub(r"[\r\n]+", " ", html). Otherwise the regex in above answer is just as …