May 8, 2023 · The code uses a list comprehension to replace duplicate occurrences of words in the list of words generated in the previous step. The list comprehension iterates over each word in the list and checks if it is present in the repl_dict dictionary and also not present in the seen set.

Feb 22, 2015 · You can use itertools.groupby with a generator function here: for k, g in groupby(seq): length = sum(1 for _ in g) if length > 1: yield k. yield length. else: yield k. ... The itertools is the best solution but for a different take without imports we can use a …

Nov 18, 2024 · In this article, we’ll learn several ways to remove duplicates from a list in Python. The simplest way to remove duplicates is by converting a list to a set. We can use set () to remove duplicates from the list. However, this approach does not preserve the original order.

I'm pretty new to python (and programming in general) and tried to use regular expressions and string.replace() like: import re pattern = "***abc**de*fg******h" pattern.replace("*"\*, "*") where \* is supposed to replace all instances of the "*" character.

Oct 30, 2017 · I want to replace them with unique element. my_list = [,...,'future_use',...,'future_use',..'future_use',...] Expected o/p: [,...,'future_use1',...,'future_use2',..'future_use3',...] I tried using list comprehension: my_list = [item.replace("future_use","future_use%r" %i,i) for item in my_list]

Mar 23, 2023 · Define a function named “replace_duplicates” which takes the following parameters: a) test_tup: The tuple which contains duplicate elements to be replaced. b) replace_word: The word which will replace the duplicate element(s). c) new_tup: A new tuple in which the replaced elements will be stored.

Learn how to remove duplicates from a List in Python. Remove any duplicates from a List: First we have a List that contains duplicates: Create a dictionary, using the List items as keys. This will automatically remove any duplicates because dictionaries cannot have duplicate keys. Then, convert the dictionary back into a list:

Feb 16, 2024 · This article delves into the challenge of replacing duplicate elements in a Python list with a new value, thereby ensuring each item in the list is unique. Imagine we have an input list like [1, 2, 3, 2, 3, 4] and we want to replace duplicates with the value None, resulting in [1, 2, 3, None, None, 4]. Method 1: Using a Set to Track Duplicates

Jul 5, 2021 · In this tutorial, we have learned two different approaches for replacing duplicate words from a string. We have used a combination of built-in functions and different traversing approaches to get the final string.

Mar 25, 2025 · Learn how to replace duplicate occurrences in a string using Python. This step-by-step tutorial guides you through detecting and replacing repeated words efficiently.