String Comparison

In Python, string comparison functions indicate whether the string meets a particular condition. Each of these functions returns True if the condition is matched, or False if the condition is not matched.

The following table lists the string comparison functions and what they do:

Function	Description
isalnum	Return True if all of the characters in the string are alphanumeric (letters or numbers). Note that the space character is not alphanumeric.
isalpha	Return True if the string consists of letters.
isdigit	Return True if the string consists of digits.
islower	Return True if the string consists of non-capitalized letters.
isspace	Return True if the string consists of whitespace characters (spaces or tabs).
istitle	Return True if the string consists of words in title format (for example, "This Is A Title").
isupper	Return True if the string consists of capitalized letters.
startswith(prefix)	Return True if the string starts with the substring prefix.
endswith(suffix)	Return True if the string ends with the substring suffix.

Because string comparison functions return True or False, they are ideal for use in conditional statements:

location = "XYZ Hospital and Treatment Center"
if (location.startswith("XYZ")):
        print "The location starts with 'XYZ'"

	iNTERFACEWARE Products Manual > Chameleon > Using Python Scripting > Learning Python > Working With Strings > String Functions > String Comparison
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String Comparison