I have a string where I am doing a compare with another string to see if there is a match: if paid[j].find(d)>=0: #BLAH BLAH If d were an list, what is the most efficient way to see if the string contained in paid[j] has a match to any value in d ?

def valInList1 (val, lst): # check `in` for each element in the list return any(val in x for x in lst) def valInList2 (val, lst): # join the list to a single string using some character # that definitely does not occur in val return val in ';;;'.join(lst)

Apr 23, 2010 · if re.match(list, temp, re.I): print "The %s is within %s." % (list,temp) The re.match is only match the beginning of the string, How to I match substring in between too. You can use re.search instead of re.match. It also seems like you don't really need regular expressions here.

Jan 8, 2025 · Testing if string contains an element from list is checking whether any of the individual items in a list appear within a given string. Using any() with a generator expression any() is the most efficient way to check if any element from the list is present in the list.

Feb 28, 2020 · In Python, the in operator allows you to determine if a string is present a list or not. The operator takes two operands, a and b, and the expression a in b returns a boolean value. If the value of a is found within b, the expression evaluates to True, otherwise it evaluates to False.

In this tutorial, you’ll learn how to compare a list and a string in Python Programming Language. Comparing a list and a string involves checking if certain elements or patterns exist in both data structures or determining their common elements.

Jan 7, 2025 · In this article, we’ll explore several methods to find a string in a list, starting from the most efficient to the least. The ‘in’ operator is the simplest and fastest way to check if a string exists in a list. It is efficient and widely used for this purpose.

Oct 6, 2023 · The in operator in Python is used to check if a value exists in a sequence (like a string or a list). It returns True if the value is found in the sequence and False otherwise. Here's how you can use the 'in' operator to check if a string contains an element from a …

Feb 25, 2025 · Learn how to find strings in a Python list using methods like in operator, count(), and custom logic. Explore examples, handle errors, and debug issues.

Feb 2, 2024 · We can also use list comprehension to find out strings containing multiple specific values i.e., we can find strings containing a and b in py_list by combining the two comprehensions. For example, py_list = [ "a-1" , "b-2" , "c-3" , "a-4" , "b-8" ] q = [ "a" , "b" ] r = [s for s in py_list if any (xs in s for xs in q)] print (r)