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Does "Find-Replace whole word only" exist in python?
e.g. "old string oldstring boldstring bold" if i want to replace 'old' with 'new', new string should look like,
"new string oldstring boldstring bold"
can somebody help me?
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Note: If count is not specified, the replace() method replaces all occurrences of the old substring with the new substring.
Python String | replace() replace() is an inbuilt function in the Python programming language that returns a copy of the string where all occurrences of a substring are replaced with another substring. Parameters : old – old substring you want to replace. new – new substring which would replace the old substring.
To match whole exact words, use the word boundary metacharacter '\b' . This metacharacter matches at the beginning and end of each word—but it doesn't consume anything. In other words, it simply checks whether the word starts or ends at this position (by checking for whitespace or non-word characters).
replace() Python method, you are able to replace every instance of one specific character with a new one. You can even replace a whole string of text with a new line of text that you specify. The . replace() method returns a copy of a string.
>>> import re
>>> s = "old string oldstring boldstring bold"
>>> re.sub(r'\bold\b', 'new', s)
'new string oldstring boldstring bold'
This is done by using word boundaries. Needless to say, this regex is not Python-specific and is implemented in most regex engines.
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