Unicode is a more extended form to include more functionally. As compare to 8-bit ASCII, while Unicode Strings stored as 16 bits with varied types of characters form many languages in the world. Generally, UNICODE is the superset of ASCII code. U is used as a prefix as same as raw String uses prefix r.

Example:

# Unicode program using symbol u
print (u'Hello, flocks')

#Output 
Hello, flocks

Methods in python

1.capitalize()

# capitalize method convert first letter to upper case
txt1 = "what is your name."
s = txt.capitalize()

print (s)

2.casefold()

# casefold method the entire string to lower case 
txt1 = "what Is Your Name."
s = txt.casefold()

print (s)

3.center()

# center method will place the string or character to the output  screen
txt1 = "what is your name."
s = txt.center(20)

print (s)

4.count()

#  count() count the value  present in the string
txt1 = "what is your name."
s = txt.count(is)

print (s)

5.encode()

#encode method return the encrypted value provide by user
txt1 = "what is your name."
s = txt.encode()

print (s)

6.endswith()

#  endswith method return boolean value when condition is true or false
txt1 = "what is your name"
s = txt.endswith(e)

print (s)

7.expandtabs()

# expandtabs set the tab space by default 8 spaces are fixed
txt1 = "what is your name."
s = txt.expandtabs(8)

print (s)

8.find()

#find method return the index value if find occurrence of value
txt1 = "Hello, here you will learn python"
x = txt.find("python")
print(x)

9.format()

#format method format the value provided inside function. where place placeholder is defined by {}

 #named indexes:
str1 = "My name is {fname}, I'm {age}".format(fname = "Ravi", age = 26)

#numbered indexes:
str2 = "My name is {0}, I'm {1}".format("Ravi",36)

#empty placeholders:
str3 = "My name is {}, I'm {}".format("Ravi",36)
print(str1)
print(str2)
print(str3)

10.index()

#return the index value if string 
str1 = "good afternoon"
w = str.index("good")
print(s)