Python – Iterate over Alphabets using Range

Iterate over Alphabets using Range in Python

To iterate over the alphabets using Range in Python,

Create a range object with the unicode point of ‘a’ as start, and the unicode point of ‘z’ + 1 as the stop.

start_ch = 'a'
end_ch = 'z'

start = ord(start_ch)
stop = ord(end_ch) + 1
my_range = range(start, stop)

We have initialised our range object. Now, use a For loop statement to iterate over the values in the range. Each value is a unicode point. You may convert this unicode to single character string using chr() built-in function.

for ch in my_range:
    print(chr(ch))

You may use ord() built-in function to convert the character to a unicode point.

If you want to iterate over the capital letter alphabets, then take unicode points of ‘A’ and ‘Z’ + 1 as start and stop respectively.

start_ch = 'A'
end_ch = 'Z'

Examples

1. Iterate over lowercase alphabets using Range

In the following program, we create a range object with the unicode values of all the lowercase English alphabets, iterate over these values, and print their respective characters to standard output.

start_ch = 'a'
end_ch = 'z'

start = ord(start_ch)
stop = ord(end_ch) + 1
my_range = range(start, stop)

for ch in my_range:
    print(chr(ch))

Output

2. Iterate over uppercase alphabets using Range

In the following program, we iterate over the uppercase English alphabets using Range, and print the alphabets to standard output.

start_ch = 'A'
end_ch = 'Z'

start = ord(start_ch)
stop = ord(end_ch) + 1
my_range = range(start, stop)

for ch in my_range:
    print(chr(ch))

Output

Summary

In this tutorial of Python Ranges, we learned how to iterate over the alphabets using a range, with examples.