is_alpha_palindrome

Objective

Implement is_alpha_palindrome, a filtered palindrome checker.

Steps

Create alpha_palindrome.py.
Expose def is_alpha_palindrome(text: str) -> bool:.
Build the comparison string by keeping alphabetic characters only; spaces, digits, punctuation, and other non-letter characters are removed before checking the palindrome.
The comparison is case-insensitive.
Return False when no letter remains after filtering.

examples

$ is_alpha_palindrome("Never odd or even")

True

$ is_alpha_palindrome("almost")

False

Constraints

Expected files

alpha_palindrome.py

Allowed functions

None. Write every helper yourself.

Tests

Run the tests to grade your code

Build

01Sentence palindrome

02Simple non-palindrome

03Punctuation ignored

04Digits are removed before comparison

05Digits removed but remaining letters are not a palindrome

06Empty string

07No letters

08Single letter

is_alpha_palindrome

Objective

Implement is_alpha_palindrome, a filtered palindrome checker.

Steps

Create alpha_palindrome.py.
Expose def is_alpha_palindrome(text: str) -> bool:.
Build the comparison string by keeping alphabetic characters only; spaces, digits, punctuation, and other non-letter characters are removed before checking the palindrome.
The comparison is case-insensitive.
Return False when no letter remains after filtering.

examples

$ is_alpha_palindrome("Never odd or even")

True

$ is_alpha_palindrome("almost")

False

Constraints

Expected files

alpha_palindrome.py

Allowed functions

None. Write every helper yourself.

is_alpha_palindrome

Objective

Implement is_alpha_palindrome, a filtered palindrome checker.

Steps

Create alpha_palindrome.py.
Expose def is_alpha_palindrome(text: str) -> bool:.
Build the comparison string by keeping alphabetic characters only; spaces, digits, punctuation, and other non-letter characters are removed before checking the palindrome.
The comparison is case-insensitive.
Return False when no letter remains after filtering.

examples

$ is_alpha_palindrome("Never odd or even")

True

$ is_alpha_palindrome("almost")

False

Constraints

Expected files

alpha_palindrome.py

Allowed functions

None. Write every helper yourself.

Tests

Run the tests to grade your code

Build

01Sentence palindrome

02Simple non-palindrome

03Punctuation ignored

04Digits are removed before comparison

05Digits removed but remaining letters are not a palindrome

06Empty string

07No letters

08Single letter