Apr 23, 2014 · You can do that using count: my_dict = {i:MyList.count(i) for i in MyList} >>> print my_dict #or print(my_dict) in python-3.x {'a': 3, 'c': 3, 'b': 1} Or using collections.Counter: from …

Dec 17, 2009 · import numpy as np count,value = np.histogram(list_a,bins=np.hstack((np.unique(list_a),np.inf))) print 'duplicate value(s) in list_a: …

The accepted answer is short and sweet, but here is an alternate syntax allowing to provide a separator in Python 3.x. print(*3*('-',), sep='_')

In this first example, we will use a for loop and the count () method to determine the repeated values in the list: if my_list. count(item) > 1: if item not in repeated_values: repeated_values. …

With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc. Print each fruit in a fruit list: The for loop does not require an indexing variable to set …

Jul 29, 2022 · Let’s see how to use lambda as we loop through a list. We’ll make a for loop to iterate over a list of numbers, find each number's square, and save or append it to the list. …

You can loop through the list items by using a while loop. Use the len() function to determine the length of the list, then start at 0 and loop your way through the list items by referring to their …

Jan 4, 2025 · Learn how to use Python's `repeat()` function from the `itertools` module! This tutorial covers syntax, examples, and tips for repeating values efficiently in loops.

def find_repeat(numbers): seen = set() for num in numbers: if num in seen: return num seen.add(num) This is an efficient method to find the first repeated value, as it won't have to …

May 8, 2023 · Method #1: Using list comprehension + enumerate () In this, we perform task of repetition using * operator, and enumerate () is used to get indices along with values for …