Python If Any Strings In A List Match Regex Stack Overflow
I need to check if any of the strings in a list match a regex If any do I want to continue The way I ve always done it in the past is using list comprehension with something like r repile search if line for line in output if r match line do stuff Which I now realize is pretty inefficient
Python Elegant Way To Check If At Least One Regex In List Matches A String, I have a list of regexes in python and a string Is there an elegant way to check if the at least one regex in the list matches the string By elegant I mean something better than simply looping through all of the regexes and checking them against the string and stopping if a match is found
Regex Python Find String In List Stack Overflow
No need for a for loop with a simple check like that it will iterate over the list and return positive or whatever you like to return if it hits a match It s also a way to build some robustness into CLI level menus in python scripts Tips you might want to change the list of strings you re checking against into a set Runs slightly faster
How To Use Regex In Python List Stack Overflow, Lookbehinds need to have a constant width in python regex Try this simpler regex instead gt gt gt regex repile ur rue boulevard quai chemin re MULTILINE gt gt gt re findall regex e 0 strip for e in my list Saint Germain Camille Desmoulins des Aubagnens EDIT Using different lookbehinds can work
Find A Specific Pattern regular Expression In A List Of Strings Python
Find A Specific Pattern regular Expression In A List Of Strings Python , 1 Answer Sorted by 9 Use re search function along with the list comprehension gt gt gt teststr 1 FirstString 2x Sec String 3rd String x forString 5X fifth gt gt gt i for i in teststr if re search r d xX i 2x Sec String 5X fifth d matches one or more digits xX matches both upper and lowercase x
Regex sheet Hromselection
Re Regular Expression Operations Python 3 12 0
Re Regular Expression Operations Python 3 12 0 A regular expression or RE specifies a set of strings that matches it the functions in this module let you check if a particular string matches a given regular expression or if a given regular expression matches a particular string which comes down to the same thing
Python String Methods Tutorial How To Use Find And Replace On
Use a list comprehension l re findall src quot quot alt each url for each url in p This will give you a list of lists which you can chain together import itertools urls list itertools chain l The regex answer given elsewhere is more elegant though Python Regex Over List Of Strings Stack Overflow. Since regular expressions are used to operate on strings we ll begin with the most common task matching characters For a detailed explanation of the computer science underlying regular expressions deterministic and non deterministic finite automata you can refer to almost any textbook on writing compilers Matching Characters 182 We can use the Python s regex module to check if any element in the list of strings matches a regex pattern or not Suppose we have a list of strings Copy to clipboard listObj quot sample quot quot is quot quot text quot quot the quot quot why quot We want to check if any string from this list starts with a substring te
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