![]() In the below example, we intend to replace whitespaces with “X”. Whitespaces can be treated as special characters and replaced with other characters. Same as the replace method, regex also creates another string object with the modified string. original_string: the main string in which the substring has to be replaced.replacement: can be a string which needs to be put in place, or a callable function which returns the value that needs to be put in place.pattern: the substring that needs to be matched and replaced.The regex.sub(pattern, replacement, original_string) function takes 3 arguments: Let’s go over its syntax and a few use cases. Regex has the sub() function to find and replace/substitute substrings easily. Python’s regex is a module specifically for dealing with text data – be it finding substrings, replacing strings or anything. Myth Busted: Data Science doesn’t need Codingīusiness Intelligence vs Data Science: What are the differences? Top 6 Reasons Why You Should Become a Data ScientistĪ Day in the Life of Data Scientist: What do they do? The Ultimate Data Science Cheat Sheet Every Data Scientists Should Have Why is Data Science Important? 8 Ways Data Science Brings Value to the Business Newstr = MultipleStrings(Mystr,, “X” )ĭata Science Career Path: A Comprehensive Career Guideĭata Science Career Growth: The Future of Work is here # Checking if string is in the main string # Iterating over the strings to be replaced def MultipleStrings (mainStr, strReplaceList, newStr) : We can write an effective function for it and get it done using the same method.Ĭonsider the example as above, but now we want to replace “h”, “is” and “ng” with “X”. Now what if you want to replace different strings in the same big string. In the above examples, we replaced one string a different number of times. Linear Algebra for Analysis Certifications Top Essential Data Science Skills to Learn in 2022 If you only want first N occurrences, Mystr = “This is a sample string” Multiple replace Mystr = “This is a sample string” If not specified, the replace method will replace all the occurrences of the string. Moreover, we didn’t specify the count parameter in the above example. So when we call the replace method, it essentially makes another string object with the modified data. If you recall, Strings in Python are immutable. Professional Certificate Program in Data Science and Business Analytics from University of Maryland Master of Science in Data Science from University of ArizonaĪdvanced Certificate Programme in Data Science from IIITB Professional Certificate Program in Data Science for Business Decision Making Executive Post Graduate Programme in Data Science from IIITB
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