Hello everyone: ), this article is about Python language which is an object-oriented and high-level programming language.
This article will be very beneficial for you to improve your knowledge of the basics of Python language. So, let’s start ;
Python
Python is a popular, high-level programming language known for its simplicity, readability, and flexibility. It is widely used in a variety of fields, including web development, data science, scientific computing, and artificial intelligence. Python also supports object-oriented, procedural, and functional programming paradigms. This makes it a versatile language that can be used for a wide range of purposes.
Types of variables
- Numeric variables
- String variables
- Boolean variables
- List variables
- Dictionary variables
- Function variables
Numeric Variable
These are variables that store numeric values, such as integers (whole numbers) and floating-point numbers (numbers with decimal places).
Example:
x = 10; # integer variable
y = 3.14; # floating-point variableString variable
These are variables that store sequences of characters, enclosed in quotation marks. They are commonly used to store text-based data.
Example:
name = "John Doe"; # string variable
greeting = 'Hello'; # string variableBoolean variable
These are variables that can have one of two values: True or False. They are often used to store the result of a logical expression or to control the flow of a program.
Example:
is_raining = True; # boolean variable
is_cold = False; # boolean variableList variable
These are variables that store an ordered collection of values. These are similar to arrays in other programming languages.
Example:
names = ["John", "Jane", "Joe"]; # list variable
numbers = [1, 2, 3, 4, 5]; # list variableDictionary variable
These are variables that store unordered collections of key-value pairs. They are often used to store data that needs to be accessed by a unique identifier (the key).
Example:
person = {
"name": "John Doe",
"age": 35,
"gender": "Male"
} # dictionary variableFunction variable
These are variables that refer to a function or a method. They are often used to store a reference to a function that can be called later.
Example:
def greet(name):
print("Hello, " + name)
greet_func = greet; # function variableDatatypes in Python
- Numeric type
- Sequence type
- Mapping type
- Set type
- Boolean type
- Binary type
- None type
Numeric Type
These are data types that represent numeric values, such as integers, floating-point numbers, and complex numbers.
Example:
x = 10; # integer
y = 3.14; # floating-point
z = 2+3j; # complexSequence Type
These are data types that represent ordered collections of values, such as strings, lists, and tuples.
Example:
name = "John Doe"; # string
numbers = [1, 2, 3]; # list
person = ("John", 35, "Male"); # tupleMapping Type
These are data types that represent unordered collections of key-value pairs, such as dictionaries.
Example:
person = {
"name": "John Doe",
"age": 35,
"gender": "Male"
}; # dictionarySet Type
It represents unordered collections of unique values, such as sets.
Example:
numbers = {1, 2, 3, 3, 4, 5}; # setBoolean Type
This is a data type that represents a logical value, either True or False.
Example:
is_raining = True; # boolean
is_cold = False; # booleanBinary Type
It represents binary data, such as bytes and byte arrays.
Example:
binary_data = b"\x01\x02\x03"; # bytes
binary_array = bytearray(b"\x01\x02\x03"); # bytearrayNone Type
This is a special data type that represents the absence of a value.
Example:
x = None; # None typeOperators in Python
- Arithmetic operators
- Assignment operators
- Comparison operators
- Logical operators
- Bitwise operators
- Membership operators
- Identity operators
Arithmetic Operator
These are operators that perform basic mathematical operations, such as addition, subtraction, multiplication, and division.
Example:
x = 5 + 2; # addition
y = 5 - 2; # subtraction
z = 5 * 2; # multiplication
a = 5 / 2; # division
Assignment Operator
These are operators that are used to assign a value to a variable.
Example:
x = 5; # assignment operator
Comparison Operator
Comparison operators compare two values and return a boolean value (True or False) based on the result of the comparison.
Example:
x = 5;
y = 2;
result = x > y; # greater than operator
result = x >= y; # greater than or equal to operator
result = x < y; # less than operator
result = x <= y; # less than or equal to operator
result = x == y; # equal to operator
result = x != y; # not equal to operatorLogical Operator
It performs logical operations, such as and, or, not, on boolean values.
Example:
x = True;
y = False;
result = x and y; # logical and operator
result = x or y; # logical or operator
result = not x; # logical not operatorBitwise Operator
It performs bitwise operations on the binary representation of numeric values.
Example:
x = 5; # binary representation: 0101
y = 2; # binary representation: 0010
result = x & y # bitwise and operator
result = x | y # bitwise or operator
result = x ^ y # bitwise xor operator
result = ~x # bitwise not operator
result = x << 1 # bitwise left shift operator
result = x >> 1 # bitwise right shift operator
Membership Operator
Membership operators check if a value exists in a sequence, such as a string, a list, or a tuple.
Example:
x = "hello";
result = "h" in x; #in operator
result = "z" not in x; # not in operatorIdentity Operator
Identity operators check if two values refer to the same object in memory.
Example:
x = "hello";
y = x;
result = x is y; # is operator
result = x is not y; # is not operator
Functions of Python
print(): – This function is used to display output on the screen.input(): – This function is used to get input from the user.len(): – This function is used to get the length of a string.range(): – This function is used to generate a sequence of numbers.sum(): – This function is used to add up the numbers in a list.min(): – This function is used to get the minimum value in a list.max(): – This function is used to get the maximum value in a list.
These are just a few examples of the many functions available in Python. There are many more, and you can find them in the Python documentation or by using the dir() function to list the available functions in a module or library.
If you have any queries regarding the above content, or you want to update anything in the content then contact us with your queries. You can directly post your question in the group.
