How to insert element in string just like append function that we use in case of dictionary in python??

Answer 1

You can't, strings are immutable in python.

If you just want to concatenate two or more strings, you can simply "add" them:

string1 += string2
string3 = string1 + string2

For a more complex insert function you can create your own function:

def insertIntoString(s, ins, pos):
''' inserts <ins> in position <pos> into string <s> '''
return s[:pos] + ins + s[pos:]

s = 'Hllo'

print(insertIntoString(s, 'e', 1))

>>> Output: Hello

Answer 2

prateek verma I did not understand your question.
Are you talking about concatenation?
The dictionary object, in Python, doesn't contain an append method.