Getting started with PYTHON!!! #2.2 - Escape Sequence

Hello People, In this blog we'll talk about

• What escape sequence actually is, types of escape sequence & how to use them.

Before we start with our lesson, let us recall Blog 2.1 .

• We leant about variables(x) which is a symbolic name used to store some value, how to assign a variable(x=5). Similarly, Identifier is a name given for some value.

  x=5
  print(x)
  

• Keywords are pre-defined words which have pre-existent defination.

  global x=10    #global is a keyword here , this line signifies that x is a global variable.
  print(x)
  

• Literals is the user-defined inputs given to an identifier. Eg : a=1 (1 is a numeric literal)

  n=5     #5 is numeric literal
  f=1.2     #1.2 is a floating literal
  c="a"     #a is a character literal
  s="Soham"    #Soham is a string literal
  b=True   #True is a boolean literal and True has a value of 1 whereas False has a value of 0 .
  

Now, let us start with our current topic, i.e, escape sequence. When we hear the term escape, the first thing that comes to our mind is going to a new place by exiting from an old place or getting out of something and entering a new domain by running away from previous statement . Similarly escape sequence is used to get out of a line and go to the next line or get away from a statement by a tab space.

ESCAPE SEQUENCE : An escape sequence is a set of characters that has a special meaning to the Python compiler. In the escape sequence, a character is preceded by a backslash ().

Python online compiler

TYPES OF ESCAPE SEQUENCE

• \n (used for escaping to the nextline or newline)

  print("Hello viewer \n Welcome to my blog")
  

  O/P

  Hello viewer
  Welcome to my blog
  

• \t (used for horizontal tab space)

  print("Do share my blog. \t Thank You")
  

  O/P

  Do share my blog.             Thank You
  

• \v (used for vertical tab space)

  print("Do give feedback on my blog if it has been useful to you. \v Thank You")
  

  O/P

  Do give feedback on my blog if it has been useful to you.  
                                                            Thank You
  

• \xhhh (displays the character with the respective hexadecimal value)

  print("\x48\x65\x6c\x6c\x6f\x20\x57\x6f\x72\x6c\x64\x21")
  

  O/P

  Hello World!
  

• \ooo (displays the character with the respective octal value)

  print("\110\145\154\154\157\40\127\157\162\154\144\41")
  

  O/P

  Hello World!
  

• \ (is used to ignore the backslash and newline)

  print("L1 \
  Newline")
  

  O/P

  L1 Newline
  

• \' or \" (is used to print the single or double quote)

  print("Hello \' Viewer\" ")
  

  O/P

  Hello ' Viewer"