CODEWITHSUNDEEP
pythonsortingfloating-point
brazjul
brazjul

Reputation: 339

Sort an Input List of Floating Numbers.

I'm trying to write a code that takes an input of floating numbers from a user, sort the values in ascending order. I tried a options found in Stack Overflow, but its still not working. This is a piece of my code: 

if option == 'f': 
    x = input() 
    y = (sorted(x, key=lambda z: float(z)))   # sort float ascending 
    print(y)

.

>>> Input: 5.0 , 4.9 , 3.1, 0.5    
Output: 0.5, 3.1, 4.9, 5.0

How can i get list of floating point numbers and print the sorted output?

Upvotes: 0

Views: 1651

Answers (2)

mhawke
mhawke

Reputation: 87084

You need to split the input string into separate floating point number strings, then sort on their float value. The following code splits on commas and removes any whitespace before sorting:

if option == 'f': 
    x = (s.strip() for s in input().split(','))
    y = (sorted(x, key=lambda z: float(z)))   # sort float ascending 
    print(y)

This outputs:

['0.5', '3.1', '4.9', '5.0']

You can also print it like this:

>>> print(', '.join(y))    # using join()
0.5, 3.1, 4.9, 5.0
>>> print(*y, sep=', ')    # Python 3 style print function
0.5, 3.1, 4.9, 5.0

Upvotes: 3

kamushin
kamushin

Reputation: 139

Your input is a string of type str. You should split it and convert to float. @mhawke gives a good example.

Upvotes: 0

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