Strings in Python

 str ="jhdvh"


str="   howuulurh /

hkhrf"

the backslash above wrap text and print the result in a single line 

Writing r before a string opening “ treats all the \ as backslash and not as escape sequence.

immutable

indexing 0:4 or -5:-1

print(str[startvalue(included):endvalue(not_included),skip_value])

print("a"+"b")==ab

print("a"*b)==a a a a a ...b times

Functions:

len(str)==gives length of string

str.endwiths("abc")==gives true or false based on if str ends with abc or not

str.count("<<any letter or keyword>>")== returns how many times something appears in str

NOTE :

print("xyyyzxyy". Count("yy")) output will be  2 

str.capitalize(empty)==makes first character of the STR capital

str.find("something")== returns position index if present(first occurrence) else -1

str.replace("thing to be replaced","thing replaced with.")-replaces all occurrence

str.strip("string" )==remove "string" from ends, default - empty spaces

str.lstrip()==left strip

str.rstrip()==right strip

str.upper()==

str.lower() 

str.isupper()==spaces are allowed

str.islower()==spaces are allowed

str.swapcase()

str.startswith("substr")

str.endswith("substr")

str.index(substring,start,stop)== similar to find but raises error if not found

str.isalpha()==true if all characters are alphabets, blankspace not allowed

str.isalnum()==true if all characters are alphanumeric

str.isdigit()==true if all characters are numbers

str.title()== capitalize each first letter of substring

str.istitle()

str.isspace()=true if only all spaces

str.partition(separator)==splits and created a tuple =substring before , separator,substring after

str.split("some_character",maxsplit)==splits a strings into many at each some_character.

maxsplit =no. of splits default -1==infinite

split = creates a list, if separator is not included then space /newline etc is taken as default 

ESCAPE character /n /t /' //(gives single backslash)

ord(alphanumeric)

chr(ascii code)


variable = "separation".join(list) # creates a string with elements of list separated by separation

.join(iterable object),elements should be string

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