String in Python

Any values provided by the user in single quote ‘’ or double quote “” compiler treats as string

Syntax

Firstname="Rupesh"

print Firstname

String Manipulation functions

string.ascii_letters

string.ascii_lowercase

string.ascii_uppercase

string.digits

string.hexdigits

string.letters

string.lowercase

string.octdigits

string.punctuation

string.printable

string.uppercase

string.whitespace

capitalize()

center(width, fillchar)

count(str, beg= 0,end=len(string))

decode(encoding='UTF-8',errors='strict')

encode(encoding='UTF-8',errors='strict')

endswith(suffix, beg=0, end=len(string))   

expandtabs(tabsize=8)  

find(str, beg=0 end=len(string))      

index(str, beg=0, end=len(string))   

isalnum()

isalpha()     

isdigit()      

islower()     

isnumeric() 

isspace()    

istitle()       

isupper()    

join(seq)    

len(string)  

ljust(width[, fillchar])     

lower()       

lstrip()        

maketrans()

max(str)     

min(str)      

replace(old, new [, max])        

rfind(str, beg=0,end=len(string))     

rindex( str, beg=0, end=len(string)) 

rjust(width,[, fillchar])   

rstrip()        

split(str="", num=string.count(str))  

splitlines( num=string.count('\n'))    

startswith(str, beg=0,end=len(string))       

strip([chars])       

swapcase() 

title()

translate(table, deletechars="")        

upper()

zfill (width)

isdecimal()

String can be accessed based on index as well in Python

print firstname[0]

R

firstname="Rupesh"

 print firstname[2:4]

 pe

Escaping Character

Escape         Meaning

\newline      Ignored

\\                 Backslash (\)

\'                 Single quote (')

\"                 Double quote (")

\a                ASCII Bell (BEL)

\b                ASCII Backspace (BS)

\f                 ASCII Formfeed (FF)

\n                ASCII Linefeed (LF)

\r                 ASCII Carriage Return (CR)

\t                 ASCII Horizontal Tab (TAB)

\v                ASCII Vertical Tab (VT)

\ooo             ASCII character with octal value ooo

\xhh...         ASCII character with hex value hh...

Splitting a string

·         split  splits the string using specific literal.

Ex:.

alphabet = "a b c d e f g"

lstdata = alphabet.split()

for letter in lstdata:

 print letter

Formatter Syntax

%c     character

%s     string conversion via str() prior to formatting

%i      signed decimal integer

%d    signed decimal integer

%u    unsigned decimal integer

%o     octal integer

%x     hexadecimal integer (lowercase letters)

%X    hexadecimal integer (UPPERcase letters)

%e     exponential notation (with lowercase 'e')

%E    exponential notation (with UPPERcase 'E')

%f     floating point real number

%g    the shorter of %f and %e

%G    the shorter of %f and %E