Python program to print alphabetical pattern

In this tutorial, you are going to learn how to print various alphabetic pattern in Python. Alphabetical (A-Z) pattern is a series of alphabet which forms a pattern or any shape like triangle, square, rhombus etc. These patterns are created with the help of nested for loop. To create the alphabetic pattern, you should know that how to convert the ASCII value into the ASCII character.

chr(): This function is used to convert the ASCII value into the ASCII character.

ASCII characters ASCII value

A-Z [65-90]
a-z [97-122]
0-9 [48-57]
Special symbols [0-47,58-64,91-96,123-127]

Print Alphabetic Pattern 1: Python

During the first iteration of the outer loop, the i becomes 65 and it goes into the inner loop
The inner loop will work for the range(65,i+1) {i.e., (65,66), (65,67), (65,68), (65,69), (65, 70) for five consecutive iterations of the outer loop}
The inner loop will print the ASCII character of j by converting the ASCII value.
Print() takes the pointer in the next line.
The outer loop will continue until i become 69 till repeat all the above steps to print the pattern.

# outer loop
for i in range (65,70):
    # inner loop
    for j in range(65,i+1):
        print(chr(j),end="")
    print()

Output:-

A
AB
ABC
ABCD
ABCDE

Print Alphabetic pattern 2: Python

This pattern is similar to the above pattern in working. The only difference is that, the inner loop is printing the ASCII character of i instead of j.

# outer loop
for i in range (65,70):
    # inner loop
    for j in range(65,i+1):
        print(chr(i),end="")
    print()

Output:-

A
BB
CCC
DDDD
EEEEE

Alphabetical pattern 3:

This pattern is similar to the above pattern. The only difference is that, we are storing the value of i in a variable and printing that variable again and again by incrementing it side by side to form the pattern.

# Outer loop
for i in range(65,70):
    k=i
    # Inner loop
    for j in range(65,i+1):
        print(chr(k),end="")
        k=k+1
    print()

Output:-

A
BC
CDE
DEFG
EFGHI

Alphabetic pattern 4:

This pattern is used when you have to print the specific string as a pattern.

The specific string is input in the str whose pattern is to be created.
Set the range of the outer and inner loop according to the string length.
Print the str character as the pattern with the help of indexing using j.
Print() will takes the pointer in the next line. The first iteration is complete.
The outer loop will continue until i become 6 till repeat all the above steps to print the pattern.

str= "APOORVA"  # string
# Outer loop
for i in range(0,7):
    # inner loop
    for j in range(0,i+1):
        print(str[j],end="")
    print()

Output:-

A
AP
APO
APOO
APOOR
APOORV
APOORVA

Alphabetical pattern 5:

During the first iteration of the outer loop, then i has the value 65 and goes into the inner loop.
The inner loop will work for the range (i,64,-1) which means that it will work in the decrement order and print the pattern like this DCBA.
Print the j using chr() function to get the ASCII character.
Print() will takes the pointer in the next line. The first iteration is complete.
The outer loop will continue until i become 69 till repeat all the above steps to print the pattern.

# Outer loop
for i in range(65,70):
    # Inner loop
    for j in range(i,64,-1):
        print(chr(j),end="")
    print()

Output:-

A
BA
CBA
DCBA
EDCBA

Alphabetic pattern 6:

This pattern is called pyramid pattern. It has three inner loops.

Set a variable according to the white space of the left side of the pyramid.
The outer loop will work for the range (65,70).
Then it goes to the inner loop 1. This loop will print the white space. The white space will decrement line by line as the for loop range is set in negative.
The inner loop 2 will print the alphabetic pattern on the left side.
```
     A
    AB
   ABC
  ABCD
 ABCDE
```
The inner loop 3 will print the pattern on the right side with the first line blank and other line has the alphabetic pattern.
```
A
AB
ABC
ABCD
```
By combining all the inner loops the pattern will be formed.

m=6   
# Outer loop
for i in range(65,70):
    m=m-1
    # Inner loop 1 
    for j in range(m,1,-1):
        print(" ",end="")
    # Inner loop 2
    for k in range(65,i+1):
        print(chr(k),end="")
    # Inner loop 3
    for n in range(65,i):
        print(chr(n),end="")
    print()

Output:-

    A
   ABA
  ABCAB
 ABCDABC
ABCDEABCD

Alphabetical pattern 6:

During the first iteration of the outer loop, then i has the value 65 and goes into the inner loop.
The inner loop will work for the range (i,64,-1) which means that it will work in the decrement order and print the pattern like this DCBA.
Print the j using chr() function to get the ASCII character.
Print() will takes the pointer in the next line. The first iteration is complete.
The outer loop will continue until i become 69 untill repeat all the above steps to print the pattern.

# Outer loop
for i in range(65,70):
    # Inner loop
    for j in range(i,64,-1):
        print(chr(j),end="")
    print()

Output:-

A
BA
CBA
DCBA
EDCBA

Star(asterisk) pattern in Python

13 responses to “Python program to print alphabetical pattern”

rads says:
December 7, 2019 at 10:35 am
pls tell me how to generate alpha pattern using any other option, not ascii values
Reply
Apoorva Gupta says:
December 8, 2019 at 7:30 pm
You can generate the pattern without using Ascii values with the help of below code:
from string import ascii_uppercase
for i in range(1,7):
print(“”. join(ascii_uppercase[:i]))
The ascii_uppercase function from string package will convert the value of i into the capital alphabets. The ascii_uppercase contains the alphabets from [A-Z].
You, can also use the similar functions like
ascii_lowercase that contains alphabets from [a-z].
Or ascii_letters function that contains alphabets from [a-zA-Z].
Reply
Robin singh says:
March 8, 2020 at 9:07 am
Hey, How do you print this pattern?
APQR
ABQR
ABCR
ABCD
Thanks!
Reply
- Rajat goel says:
  April 7, 2020 at 10:29 am
  for i in range(4):
  for j in range(4):
  if(i<j):
  print(chr(65+14+j), end=" ")
  else :
  print(chr(65+j), end=" ")
  print()
  Reply
yaksha says:
April 23, 2020 at 3:01 pm
plz print this pattern
A
BAB
CBABC
DCBABCD
EDCBABCDE
Reply
Apoorva Gupta says:
April 26, 2020 at 8:00 am
You can use this code to produce the above pattern:
m=5
for i in range (65,70):
    m=m-1
    for j in range(m, 0,-1):
        print(” “, end=””)
    for k in range(i, 65, -1):
        print(chr(k),end=””)
    for n in range(65,i+1):
        print(chr(n), end=””)
    print()
Reply
arjun c says:
June 26, 2020 at 12:13 pm
1
1 D
1 D O
1 D O D
1 D O D O
can anyone help me in printing this pattern?
Reply
- Apoorva Gupta says:
  July 10, 2020 at 6:33 pm
  l=[1,’D’,’O’,’D’,’O’]
  for i in range(0,5):
  for j in l[0:i+1]:
  print (j,end=” “)
  print()
  Output:-
  1
  1 D
  1 D O
  1 D O D
  1 D O D O
  Reply
Ratchanyaa Soundararajan says:
July 7, 2020 at 10:29 am
Help me to print this pattern
a b c d
e f g
h i
j
Reply
- Apoorva Gupta says:
  July 14, 2020 at 8:59 pm
  a=97
  for i in range(4,0,-1):
  for j in range(97,97+i):
  print(chr(a),end=” “)
  a=a+1
  print()
  Output:-
  a b c d
  e f g
  h i
  j
  Reply
Shashank Srivastava says:
September 13, 2020 at 11:34 am
Input=2
B B B
B A B
B B B
program for this?
Reply
Anuraag Singh says:
October 10, 2020 at 9:59 am
How do I encode
A
BC
DEF
GHIJ
GHIJ
DEF
BC
A in python
Reply
Saikat says:
October 15, 2020 at 7:19 pm
——–e——–
——e-d-e——
—-e-d-c-d-e—-
–e-d-c-b-c-d-e–
e-d-c-b-a-b-c-d-e
–e-d-c-b-c-d-e–
—-e-d-c-d-e—-
——e-d-e——
——–e——–
Reply

Python program to print alphabetical pattern

ASCII characters ASCII value

Print Alphabetic Pattern 1: Python

Print Alphabetic pattern 2: Python

Alphabetical pattern 3:

Alphabetic pattern 4:

Alphabetical pattern 5:

Alphabetic pattern 6:

Alphabetical pattern 6:

13 responses to “Python program to print alphabetical pattern”

Leave a Reply Cancel reply

Related Posts