#Pyhton regex for number code
Run the code with flag “multiline”, when you print ‘k2’ it gives the output as ‘g’, ‘c’ and ‘s’. Run the code without using flags multiline, it gives the output only ‘g’ from the lines. We declared the variable xx for string ” guru99…. K2 = re.findall(r"^\w", xx, re.MULTILINE) When you run the code the first variable “k1” only prints out the character ‘g’ for word guru99, while when you add multiline flag, it fetches out first characters of all the elements in the string. While expression small “w” is used to mark the space with characters. In multiline the pattern character match the first character of the string and the beginning of each line (following immediately after the each newline). \d represents a digit.Ex: \d follows Unicode rules RegEx in Python supports various things like Modifiers, Identifiers, and White space characters. 
Python supports regular expression through libraries. Regular expression or RegEx in Python is denoted as RE (REs, regexes or regex pattern) are imported through re module.
Example of \s expression in re.split functionįor instance, a Python regular expression could tell a program to search for specific text from the string and then to print out the result accordingly. In this Python RegEx tutorial, we will learn. It includes digits and punctuation and all special characters like etc. 
Ascii or latin letters are those that are on your keyboards and Unicode is used to match the foreign text. While using the Python regular expression the first thing is to recognize is that everything is essentially a character, and we are writing patterns to match a specific sequence of characters also referred as string. It is extremely useful for extracting information from text such as code, files, log, spreadsheets or even documents. A Regular Expression (RE) in a programming language is a special text string used for describing a search pattern.
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