Python Literals, Operators and Punctuators Functions | Informatics practices IP Python in Malayalam

Python Literals, Operators and Punctuators Functions | Informatics practices IP Python in Malayalam

Literals in Python is defined as the raw data assigned to variables or constants while programming. We mainly have five types of literals which includes string literals, numeric literals, boolean literals, literal collections and a special literal None

A string literal is where you specify the contents of a string in a program. Here 'A string' is a string literal. The variable a is a string variable, or, better put in Python, a variable that points to a string. String literals can use single or double quote delimiters.

In Python, escape sequences are indicated by a backslash ( \ ). The most important one may be \n which indicates a new line. Like so, multiple logical lines can be stacked into a single physical line. Another escape sequence worth mentioning is \' for a single quote within a string.

To calculate the length of a string in Python, you can use the built-in len() method. It takes a string as a parameter and returns an integer as the length of that string. For example len("educative") will return 9 because there are 9 characters in "educative".

Numeric literals are used to represent numbers in a python program. In python we have different types of numeric literals such as integers, floating point numbers and complex numbers. Integers in python are numbers with no fractional component. An integer representing a decimal number can be defined as follows.

When you create an integer like this, the value 25 is called an integer literal because the integer is literally typed into the code. int("25") is not an integer literal because the integer value is created from a string.

o write a float literal in E notation, type a number followed by the letter e and then another number. Python takes the number to the left of the e and multiplies it by 10 raised to the power of the number after the e . So 1e6 is equivalent to 1×10⁶.
Special Literals in Python

Python literals have one special literal known as None. This literal in Python is used to signify that a particular field is not created. Python will print None as output when we print the variable with no value assigned to it. None is also used for end of lists in Python.

There are only two Boolean literals in Python. They are true and false.

Python divides the operators in the following groups: Arithmetic operators; Assignment operators; Comparison operators; Logical operators

A punctuator is a token that has syntactic and semantic meaning to the compiler, but the exact significance depends on the context. A punctuator can also be a token that is used in the syntax of the preprocessor.

Index
00:00 CBSE class 11 Informatics practices IP Python fundamentals Tokens continues chapter 3
00:20 Python Literals Values in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
00:50 Python String literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
01:08 Escape sequences in python in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens || Python Escape sequences in Malayalam
02:50 Python size of strings in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
04:37 Python numeric literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
04:47 Python integer literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
04:57 Python float literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
05:17 Python special literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
05:38 Python Boolean literals in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
06:22 Python Operators in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens
06:52 Python Punctuators in Malayalam CBSE Informatics practices IP Chapter 3 fundamentals Tokens

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