Slice notation in Python for string reversal

0 votes

I saw this line in a program and it is apparently reverses a string. How does it work?

str1[::-1]
Apr 25, 2018 in Python by gooba
633 views

1 answer to this question.

0 votes
The slice notation is [start:end:step]. Step = -1 implies that the string is reversed in steps of 1. Since no values are given for the start and end parameters, python assumes that the string is to be traversed from beginning to end.
answered Apr 25, 2018 by Nietzsche's daemon
• 4,260 points

Related Questions In Python

+7 votes
8 answers

Difference for string comparison in Python: 'is' vs. ==

If we use "==" means both variables ...READ MORE

answered Sep 3, 2018 in Python by Parul Raheja
2,273 views
0 votes
1 answer

Examples for string find in Python

you can use str.index too: >>> 'sdfasdf'.index('cc') Traceback ...READ MORE

answered Aug 29, 2018 in Python by Priyaj
• 58,100 points
757 views
0 votes
1 answer

In python how to test a string for a substring

if "ABCD" in "xxxxABCDyyyy": This can be used ...READ MORE

answered Oct 24, 2018 in Python by Priyaj
• 58,100 points
737 views
0 votes
1 answer

How does slice notation in Python work?

The Python tutorial talks about it (scroll down a ...READ MORE

answered Oct 31, 2018 in Python by Priyaj
• 58,100 points
707 views
0 votes
2 answers
+1 vote
2 answers

how can i count the items in a list?

Syntax :            list. count(value) Code: colors = ['red', 'green', ...READ MORE

answered Jul 7, 2019 in Python by Neha
• 330 points

edited Jul 8, 2019 by Kalgi 4,348 views
0 votes
1 answer
+5 votes
6 answers

Lowercase in Python

You can simply the built-in function in ...READ MORE

answered Apr 11, 2018 in Python by hemant
• 5,790 points
3,903 views
0 votes
1 answer

Unique identification for data items in Python

Try the UUID module of Python. For example, ...READ MORE

answered Apr 17, 2018 in Python by Nietzsche's daemon
• 4,260 points
1,114 views
0 votes
1 answer

Looping over a string in python

for c in "string": ...READ MORE

answered May 28, 2018 in Python by Nietzsche's daemon
• 4,260 points
639 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP