How do I print a table of the alphabet in python?

Question

I am writing a program that is supposed to print:

A abcdefghijklmnopqrstuvwxyz
B bcdefghijklmnopqrstuvwxyz
C cdefghijklmnopqrstuvwxyz
D defghijklmnopqrstuvwxyz
E efghijklmnopqrstuvwxyz
F fghijklmnopqrstuvwxyz
G ghijklmnopqrstuvwxyz
H hijklmnopqrstuvwxyz
I ijklmnopqrstuvwxyz
J jklmnopqrstuvwxyz
K klmnopqrstuvwxyz
L lmnopqrstuvwxyz
M mnopqrstuvwxyz
N nopqrstuvwxyz
O opqrstuvwxyz
P pqrstuvwxyz
Q qrstuvwxyz
R rstuvwxyz
S stuvwxyz
T tuvwxyz
U uvwxyz
V wxyz
X xyz
Y yz
Z z

I have written the following code for the program but it does not print out what I want it to. This is what I have written for the program:

alphabet = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
for k in range(len(alphabet)):
    for j in range(len(alphabet)):
        print(alphabet[j-k],end='')
    print('\n')`

and it prints out:

abcdefghijklmnopqrstuvwxyz

zabcdefghijklmnopqrstuvwxy

yzabcdefghijklmnopqrstuvwx

xyzabcdefghijklmnopqrstuvw

wxyzabcdefghijklmnopqrstuv

vwxyzabcdefghijklmnopqrstu

uvwxyzabcdefghijklmnopqrst

tuvwxyzabcdefghijklmnopqrs

stuvwxyzabcdefghijklmnopqr

rstuvwxyzabcdefghijklmnopq

qrstuvwxyzabcdefghijklmnop

pqrstuvwxyzabcdefghijklmno

opqrstuvwxyzabcdefghijklmn

nopqrstuvwxyzabcdefghijklm

mnopqrstuvwxyzabcdefghijkl

lmnopqrstuvwxyzabcdefghijk

klmnopqrstuvwxyzabcdefghij

jklmnopqrstuvwxyzabcdefghi

ijklmnopqrstuvwxyzabcdefgh

hijklmnopqrstuvwxyzabcdefg

ghijklmnopqrstuvwxyzabcdef

fghijklmnopqrstuvwxyzabcde

efghijklmnopqrstuvwxyzabcd

defghijklmnopqrstuvwxyzabc

cdefghijklmnopqrstuvwxyzab

bcdefghijklmnopqrstuvwxyza

abcdefghijklmnopqrstuvwxyz

I need help to figure out what I did wrong and what I need to do for the code to print what I want it to print.

Note that, unlike in the example, each of your printed rows has length 26. Why do you suppose that is? Also, what do you think, e.g., alphabet[-5] is? — Chas Brown, Feb 26 '17 at 22:00

score 2 · Answer 1 · edited May 23 '17 at 12:02

2

There’s a cleaner and shorter solution to your problem:

alphabet = "abcdefghijklmnopqrstuvwxyz"
for i, letter in enumerate(alphabet):
    print(letter.upper(), alphabet[i:])

I suggest you read about Python slices (from the doc, or here on Stack).

edited May 23 '17 at 12:02

Community

1
1

answered Feb 27 '17 at 00:18

Arcturus B

5,181
4
31
51

Alon · Accepted Answer · 2017-02-26T22:10:34.260

1

alphabet = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
for k in range(len(alphabet)):
        for j in range(len(alphabet) - k):
            print(alphabet[j+k],end='')
        print('\n')

I hope it will help you.

edited Feb 26 '17 at 22:10

answered Feb 26 '17 at 22:04

Alon

112
1
7

score 0 · Answer 3 · answered Feb 27 '17 at 00:18

Here's a more "pythonic" way that takes advantage of the new f-strings in Python 3.6 as well:

alphabet = 'abcdefghijklmnopqrstuvwxyz'
for i,k in enumerate(alphabet):
        print(f'{k.upper()} {alphabet[i:]}')

You can iterate over the characters of a string.
enumerate gives both an index the value of the current iteration.
f-strings allow expressions to be evaluated in a string.
.upper() gives the upper case version of a string.
[i:] slice notation returns a sub-string that starts at index i until the end of the string.

score 0 · Answer 4 · answered Jul 04 '20 at 12:55

0

This can be accomplished in two lines of code use the python slice tool and also capitalize at the index:

a = 'abcdefghijklmnopqrstuvqxyz'

add = ''
for i in range(26):
    print(a[i].capitalize(), a[-26:i+1])

answered Jul 04 '20 at 12:55

ganja

21
3

How do I print a table of the alphabet in python?

4 Answers4