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Python map() and lambda() Use Cases and Examples

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 In Python, map() and lambda functions are often used together for functional programming. Here are some examples to illustrate how they work. Python map and lambda top use cases 1. Using map() with lambda The map() function applies a given function to all items in an iterable (like a list) and returns a map object (which can be converted to a list). Example: Doubling Numbers numbers = [ 1 , 2 , 3 , 4 , 5 ] doubled = list ( map ( lambda x: x * 2 , numbers)) print (doubled) # Output: [2, 4, 6, 8, 10] 2. Using map() to Convert Data Types Example: Converting Strings to Integers string_numbers = [ "1" , "2" , "3" , "4" , "5" ] integers = list ( map ( lambda x: int (x), string_numbers)) print (integers) # Output: [1, 2, 3, 4, 5] 3. Using map() with Multiple Iterables You can also use map() with more than one iterable. The lambda function can take multiple arguments. Example: Adding Two Lists Element-wise list1 = [ 1 , 2 , 3 ]

The Easy Way to Split String Python Partition Method

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Here's a way without the Split function you can split (or extract) a substring. In Python the method is Partition. You'll find here how to use this method with an example.  How to Split the string using Partition method   Returns Left side part Example-1 my_string='ABCDEFGH||10||123456.25|' my_partition=my_string.partition('|')[0] print(my_partition) Output |10||123456.25| ** Process exited - Return Code: 0 ** Press Enter to exit terminal Example-2 Returns from the separator to last of the string. my_string='ABCDEFGH||10||123456.25|' my_partition=my_string.partition('|')[-1] print(my_partition) Output |10||123456.25| ** Process exited - Return Code: 0 ** Press Enter to exit terminal The use of Rpartition to split a string in Python Example-1 Returns except right side last separator. my_string='ABCDEFGH||10||123456.25|' my_partition=my_string.rpartition('|')[0] print(my_partition) Output ABCDEFGH||10||123456.25 ** Process exited -