Method # 1: Using List Comprehension + replace()
The replacement method can be combined with list comprehension techniques to accomplish this particular task. List comprehension performs the task of iterating over the list, and the replace method replaces the substring section with another.
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Output:
The original list: [’4’ , ’kg’,’ butter’, ’for’,’ 40’, ’bucks’] The list after substring replacement: [’ 1’, ’kg’,’ butter’, ’for’,’ 10’, ’bucks ’]
Method # 2: Using map () + lambda + replace()
A combination of these functions can also be used to accomplish this specific task. Map and lambda help accomplish the task in the same way as list comprehension, and the replace method is used to perform the replace function. But this method is bad when it comes to performance than the method above.
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Output:
The original list: [’4’,’ kg’, ’butter’,’ for’, ’40’,’ bucks’] The list after substring replacement: [’1’,’ kg’, ’butter’,’ for’, ’10’,’ bucks’]
