2. Learn more . def replaceMultiple ( mainString , toBeReplaces , newString ) : # Iterate over the strings to be replaced Python string method replace() returns a copy of the string in which the occurrences of old have been replaced with new, optionally restricting the number of replacements to max. This can have application in many domains including day-day programming and school programming. Active 1 year, 10 months ago.

Python – Replace multiple words with K. Sometimes, while working with Python strings, we can have a problem in which we need to perform a replace of multiple words with a single word. Late to the party, but I lost a lot of time with this issue until I found my answer.

Lets discuss certain ways in which this task can be performed. Replace a set of multiple sub strings with a new string in main string. The source code for fileinput is pretty eye-bleedingly awful, and it does some really unsafe things under the hood. Viewed 26k times 11. This is just a more concise recap of F.J and MiniQuark great answers. Python: replacing multiple words in a text file from a dictionary.

Ask Question Asked 4 years, 11 months ago.

Search and replace with “whole word only” option [duplicate] Ask Question Asked 6 years, 10 months ago. If you really want to redirect stdout to your file for some reason, it's not hard to do it better than fileinput does (basically, use try..finally or a contextmanager to ensure you set stdout back to it's original value afterwards). So I need to randomly replace words and re-write them to the text file, until it no longer makes sense to anyone else.

Following is the syntax for replace() method − str.replace(old, new[, max]) Parameters. Short and sweet, translate is superior to replace.If you're more interested in funcionality over time optimization, do not use replace.. Also use translate if you don't know if the set of characters to be replaced overlaps the set of characters used to replace.. Case in point: All you need to achieve multiple simultaneous string replacements is the following function:. Active 6 months ago.

def multiple_replace(string, rep_dict): pattern = re.compile("|".join([re.escape(k) for k in sorted(rep_dict,key=len,reverse=True)]), flags=re.DOTALL) return pattern.sub(lambda x: rep_dict[x.group(0)], string)

I am having trouble figuring out where I'm going wrong. Syntax.

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