Python: How to Create a Class Useful Mini Project

PYTHON Supports Classes as part of Object-Oriented Programming Capabilities. You can create an Object from the Class. Also, you can use the methods of that.  

Mini Project: Python Class Writing in 5 Steps

1. My Sample Python Code

Sample Code: Here, the below code gives indentation errors. I have later corrected in my program.

class Employee:

 'Base class'

 empCount = 0

 def __init__(self, name, salary):

  self.name = name

  self.salary = salary

  Employee.empCount += 1

# can also be written as Employee.empCount = Employee.empCount + 1

 def displayEmployee(self): # function is defined here

  print "Name : ", self.name, ", Salary: ", self.salary

# "emp1 is the first object of Employee class"

emp1 = Employee("Akhil", 2000)

# "emp2 is the second object of Employee class"

emp2 = Employee("Suresh", 5000)

emp1.displayEmployee()

emp2.displayEmployee()

print "Total Employee %d" % Employee.empCount

2. Below is the Command I used to create poly.py in Ubuntu

Command to edit: 

$ vim poly.py

3. Below is the code I have written to file

• Logic: In python,' init' is a mandatory method with 'self' you need to give. The arguments 'name' and 'salary' are optional to you. Here I used two objects of Employee - emp1 and emp2. The Employee is the base class. 
• These objects used the "displayEmployee" method. According to the print definition, you got the below output details.
• The last print has two characters. One is %d and %. The %d, pads a blank. If you want more, you can write %2d, %3d, and so on.

4. Saved the File using Below Command

• Esc
• :wq

5. From Python Console, get the .py module using the "import" command. It runs as and when the import completes

• The command to import is - >>> import poly.py
• When I imported, it displayed the messages as expected.

References

1. Python Tricks
2. Cool Tricks for Python Programmers