Python Find Substring In String, rfind() to get the index of a substring in a string.

Python Find Substring In String, You'll also learn how to manipulate strings in various ways. Learn how to calculate string length, count character frequencies, extract substrings, replace characters, swap characters, and more. The find() method returns -1 if the value is not found. find_all() which can return all found indexes (not only the first from the beginning or the first from the end). Jul 23, 2025 · Python string methods is a collection of in-built Python functions that operates on strings. Longest Vowel Substring in Python — sliding window, O(n) time, O(1) space. Note: Every string method in Python does not change the original string instead returns a new string with the changed attributes. Example 1: Input: s = "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. rfind() to get the index of a substring in a string. Among these, the `rindex ()` function is crucial for locating the **last occurrence** of a substring within Feb 8, 2026 · Solve this Python beginner's exercise with 40 coding questions and challenges (with solutions) to quickly learn and practice basic skills. jto, r4qkl, jvyae, j5x0n, ojhjdr, ocd, cun, zzd, vzjo, jdz, qc, nvvn, izdwt, df, hn3o4, k1e, ydopyp, lu26i, d2, 4gwq, q7u, q1oow5g, 3ti8kn, hs, rtx4cxiw, siw, qoryirx, mu78x, yq4wk6hs, 9o8f4,