# Python For Beginner's Day - 7

**String Methods:**

**contd**....

* **isalnum()**: returns true if all the characters in the string are alphanumeric
    
* **isalpha()**: returns true if all the characters in the string are only with alphabets(a - z)/(A-Z)
    
* **isdecimal()**: returns true if all the characters in the string are in decimals(0 - 9)
    
* **isdigit()**: returns true if all the characters in the string are digits same as isdecimal() but it also accepts subscript and superscript.
    
* **isnumeric()**: returns true if all the characters in the string are Unicode characters which include digits same as isdecimal(), subscript, superscript, Roman Numerals and fractions.
    
* **isascii()**: returns true if all the characters in the string are ascii characters. ASCII characters are those whose unicode points are in the range from 0 - 127
    
* **isidentifier()**: returns true if the string is a valid identifier, like alphanumeric letters (a-z), (0-9) or underscores(\_) but it should not start with a number or a space.
    
* **islower()**: returns true if all the characters in the string are lower case.
    
* **isupper()**: returns true if all the characters in the string are upper case.
    
* **isprintable()**: returns true if all the characters in the string are printable, like digits(0-9), alphabets(A-Z)/(a-z), Space( ), Punctuation characters. Non-Printable characters include all escape characters such as '\\n', '\\t', ......
    
* **isspace()**: returns true if all the characters in the string are whitespaces.
    
* **istitle()**: returns true if each word start with upper case letter. Symbols and Numbers are ignored.
    

\---To be continued......