String Special Operators

Strings

Python does not support a character type; these are treated as strings of length one, thus also considered a substring.
To access substrings, use the square brackets for slicing along with the index or indices to obtain your substring
Program on strings
a="vision"
b="prasad"
print(a[0],a[1],a[2])
c=a+b
print(c)
print("relapce characters")
print(b[:3]+"DGP")

String Special Operators

Operator

Description

Example

+

Concatenation - Adds values on either side of the operator

a + b will give HelloPython

*

Repetition - Creates new strings, concatenating multiple copies of the same string

a*2 will give -HelloHello

[]

Slice - Gives the character from the given index

a[1] will give e

[ : ]

Range Slice - Gives the characters from the given range

a[1:4] will give ell

in

Membership - Returns true if a character exists in the given string

H in a will give 1

not in

Membership - Returns true if a character does not exist in the given string

M not in a will give 1

r/R

Raw String - Suppresses actual meaning of Escape characters. The syntax for raw strings is exactly the same as for normal strings with the exception of the raw string operator, the letter "r," which precedes the quotation marks. The "r" can be lowercase (r) or uppercase (R) and must be placed immediately preceding the first quote mark.

print r'\n' prints \n and print R'\n'prints \n

%

Format - Performs String formatting

See at next section

 

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