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Standard Normal Distribution with examples using Python

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Slicing in Python

Slicing in Python

In this post, we will understand concepts around slicing lists in Python. Let's say, I have names of my friends stored in a Python List 


list_friends = ["Irfan", "Jitu",  "Ketan", "Ravi", "Rohan", "Zephyr"]

If I ask you , give me 4th and 5th friend in the list, this is how it is done. 


list_friends[4:6]
---> ['Rohan', 'Zephyr']

If I say, give me alternate names of friends starting from Irfan. 


list_friends[0:5:2]
----> ['Irfan', 'Ketan', 'Rohan']

The slice operator is in the form as given below
start:end:step
Interpret this as "Go from start index to end index (but exclude element at end index) with a step size of step"
In the previous example, we went from 0 to 5 with a step size of 2
If start index is not given, Python assumes it as 0
If end index is not give, Python assumes it as last index (equal to length of list-1) 


list_friends[::2]
-->['Irfan', 'Ketan', 'Rohan']

The above code will give the same output as in the previous example.

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