Class in python
In Python, a class is a blueprint or template for creating objects, which are instances of the class. A class defines a set of attributes and methods that the objects of the class can have.
Here is an example of a simple Python class:
```python
class Car:
# class variable
wheels = 4
# constructor method
def __init__(self, make, model, year):
self.make = make
self.model = model
self.year = year
# instance method
def drive(self):
print(f"{self.make} {self.model} is driving...")
```
In the example above, the `Car` class has a class variable `wheels` which is set to 4. The class also has a constructor method `__init__` which initializes the instance variables `make`, `model`, and `year` with the values passed as arguments. The class also has an instance method `drive` which prints a message indicating that the car is driving.
To create an object of the `Car` class, you can call the constructor method:
```python
my_car = Car("Toyota", "Camry", 2021)
```
You can access the attributes of the object using the dot notation:
```python
print(my_car.make) # output: Toyota
print(my_car.year) # output: 2021
```
You can also call the methods of the object using the dot notation:
```python
my_car.drive() # output: Toyota Camry is driving...
```
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