.islower()

The .islower() string method takes in a string and returns True if all the letters in the string are in lowercase, else returns False. This method ignores spaces, newlines, numeric, and special characters in the string.

Syntax

string.islower()

Example

Use .islower() to check if a string contains only lowercase letters:

my_string = "code more!"

print(my_string.islower())
# Output: True

Codebyte Example

Use .islower() to check if my_string contains only lowercase letters, ignoring the dashes, exclamation point, and newline:

Code
Output
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