Difference between Python 2 and Python 3
Here are some key differences between Python 2 and Python 3:
Print Statement: In Python 2, the print statement is written as print "Hello, World!", whereas in Python 3 it is written as print("Hello, World!").
Division Operator: In Python 2, the division operator / performs integer division if both operands are integers. However, in Python 3, it performs float division by default.
Unicode: Python 2 handles Unicode strings differently than Python 3. In Python 2, Unicode strings are declared using the u prefix, whereas in Python 3, all strings are Unicode by default and use the str type.
xrange() vs range(): In Python 2, range() returns a list, while xrange() returns an iterator. In Python 3, the xrange() function does not exist, and the range() function returns an iterator instead of a list.
Exception Handling: In Python 2, exception handling is done using the “tuple syntax”. For example, except IOError, e:. However, in Python 3, it is done using the “as” keyword. For example, except IOError as e:.
Iteration: Python 2 has two iteration keywords, for item in list: and for item in list.iteritems():, for iterating over a list and dictionary, respectively. In Python 3, the dictionary iteration method is merged with the list iteration method: for item in list:.
Integer Division: In Python 2, the operator // performs floor division for both integers and floating-point numbers. In Python 3, the operator // always performs floor division.
These are just a few differences, and there are other changes as well, including new features and improvements introduced in Python 3. It is recommended to refer to the official Python documentation for a comprehensive list of differences and details.
If you are looking for a comprehensive Python course, Edure offers the best Python training in Kerala. Whether you prefer online or offline classes, we provide flexible learning options to suit your needs. Our Python course is designed to provide a solid foundation in programming concepts and Python-specific skills. Whether you are a beginner or have prior programming experience, our expert instructors will guide you through the course materials.
Key topics covered in our Python course include:
Introduction to Python: Get familiar with the Python programming language, understand its features, syntax, and data types.
Control Structures: Learn how to use conditionals, loops, and functions to control the flow of your Python programs.
Data Structures: Explore different data structures in Python, including lists, tuples, dictionaries, and sets. Understand how to manipulate and use these data structures effectively.
Object-Oriented Programming (OOP): Learn the principles of OOP in Python, including classes, objects, inheritance, and polymorphism.
File Handling and Exception Handling: Discover how to read from and write to files using Python. Also, understand how to handle exceptions and errors gracefully in your programs.
Python Libraries and Modules: Explore popular Python libraries and modules such as NumPy, Pandas, and Matplotlib. Learn how to leverage these tools for data analysis, visualization, and scientific computing.
Web Development with Flask: Learn how to build web applications using the Flask framework. Understand the concept of routing, handling HTTP requests, and integrating databases.
Best Practices and Pythonic Coding: Master the best practices and coding conventions in Python. Learn how to write clean, efficient, and maintainable code.
At Edure, we provide hands-on exercises, coding projects, and real-world examples to reinforce your learning. Our experienced instructors are always available to answer your questions and provide guidance throughout the course.
Join Edure, the best Python training institute in Malappuram, Kollam, and Trivandrum, and enhance your programming skills with Python.
For more information contact as
Aristo Junction, Thampanoor,
Thiruvananthapuram, Kerala , 695001