Sequence Conversions in Python

I recently published a couple articles on data type conversions. If you would like to read them, here they are:

– String to Number Conversions

– Converting String Representations of Binary, Octal and Hexadecimal Integers

– Number to String Conversions

– String to List Conversions

Today we’ll be talking about sequence conversions. In particular we’ll learn how to convert any sequence to a list or tuple.

Here’s the video version of this article:

Any sequence to list

We can convert any sequence to a list by using the list function:

– string to list:

 >>> s = "hello"
 >>> list(s)                      
 ['h', 'e', 'l', 'l', 'o']

– tuple to list:

>>> tup = (3, "OK", 7.8, "yes")
>>> list(tup)                      
[3, 'OK', 7.8, 'yes']

– range to list:

 >>> rng = range(8)
 >>> list(rng)                      
 [0, 1, 2, 3, 4, 5, 6, 7] 

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Any sequence to tuple

We can also convert any sequence to a tuple by using the tuple function:

– string to tuple:

>>> str = "hello"
>>> tuple(str)                      
('h', 'e', 'l', 'l', 'o')

– list to tuple:

 >>> lst = [3, "OK", 7.8, "yes"]
 >>> tuple(lst)                      
 (3, 'OK', 7.8, 'yes')

– range to tuple:

 >>> rng = range(8)
 >>> tuple(rng)                      
 (0, 1, 2, 3, 4, 5, 6, 7) 

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