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Python Map - Exercises, Practice, Solution

Python Map [17 exercises with solution]

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1. Write a Python program to triple all numbers of a given list of integers. Use Python map. Go to the editor
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2. Write a Python program to add three given lists using Python map and lambda. Go to the editor
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3. Write a Python program to listify the list of given strings individually using Python map.
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4. Write a Python program to create a list containing the power of said number in bases raised to the corresponding number in the index using Python map. Go to the editor
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5. Write a Python program to square the elements of a list using map() function. Go to the editor
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6. Write a Python program to convert all the characters in uppercase and lowercase and eliminate duplicate letters from a given sequence. Use map() function. Go to the editor
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7. Write a Python program to add two given lists and find the difference between lists. Use map() function. Go to the editor
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8. Write a Python program to convert a given list of integers and a tuple of integers in a list of strings. Go to the editor
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9. Write a Python program to create a new list taking specific elements from a tuple and convert a string value to integer. Go to the editor
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10. Write a Python program to compute the square of first N Fibonacci numbers, using map function and generate a list of the numbers. Go to the editor
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11. Write a Python program to compute the sum of elements of an given array of integers, use map() function. Go to the editor
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12. Write a Python program to find the ration of positive numbers, negative numbers and zeroes in an array of integers. Go to the editor
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13. Write a Python program to count the same pair in two given lists. use map() function. Go to the editor
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14. Write a Python program to interleave two given list into another list randomly using map() function. Go to the editor
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15. Write a Python program to split a given dictionary of lists into list of dictionaries using map function. Go to the editor
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16. Write a Python program to convert a given list of strings into list of lists using map function. Go to the editor
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17. Write a Python program to convert a given list of tuples to a list of strings using map function. Go to the editor
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Python: Tips of the Day

Python: Kwargs

**kwargs and *args are function arguments that can be very useful.

They are quite underused and often under-understood as well.

Let's try to explain what kwargs are and how to use them.

  • While *args are used to pass arguments at an unknown amount to functions, **kwargs are used to do the same but with named arguments.
  • So, if *args is a list being passed as an argument, you can think of **kwargs as a dictionary that's being passed as an argument to a function.
  • You can use arguments as you wish as long as you follow the correct order which is: arg1, arg2, *args, **kwargs. It's okay to use only one of those but you can't mix the order, for instance, you can't have: function(**kwargs, arg1), that'd be a major faux pas in Python.
  • Another example: You can do function(*args,**kwargs) since it follows the correct order.
  • Here is an example. Let's say satelites are given with their names and weight in tons in dictionary format. Code prints their weight as kilograms along with their names.
def payloads(**kwargs):
    for key, value in kwargs.items():
        print( key+" |||", float(value)*100)
payloads(NavSat1 = '2.5', BaysatG2 = '4')

Output:

NavSat1 ||| 250.0
BaysatG2 ||| 400.0

Since the function above would work for any number of dictionary keys, **kwargs makes perfect sense rather than passing arguments with a fixed amount.

def payloads(**kwargs):
    for key, value in kwargs.items():
        print( key+" |||", float(value)*100)

sats={"Tx211":"3", "V1":"0.50"}
payloads(**sats)

Output:

Tx211 ||| 300.0
V1 ||| 50.0