Python Challenges with Solutions – Learn Python the Smart Way | Cedlearn

1. PYTHON CHALLENGE Clean your list like a pro with this one-line trick. Remove unwanted elements like False, None,"", [], and {} from a list without using loops or filters. www.cedlearn.com

2. Here’s the clean solution: Python data = [0, None, "", "AI", False, 123, [], {}, "Python"] filtered = list({*data} - {None, False, "", [], {}}) How this works? Normally, when we think of removing items, we go for a loop or a filter function. But Python gives us another magical tool — sets. www.cedlearn.com

3. 1. {*data} This unpacks the list into a set. Why? Because sets automatically ignore duplicates and give us unique values. 2. The - operator If used on numbers → it means subtraction (10 - 3 = 7).If used on sets → it means “remove everything that’s in the right set from the left set”. means “Take all unique items from data, but remove anything that matches None, False, empty string, empty list, or empty dict.” www.cedlearn.com

4. 3. Wrap it back in list() Finally, we convert the result back into a list, since sets don’t keep the order. The beauty here is: • No loops • No filter() • No external libraries Just pure set logic + Python operators www.cedlearn.com

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