What is Python ?
How To Setup On Linux
Python courses
Intelligent assistant to learn Python
Python is an interpreted, high-level, general-purpose programming language. Created by Guido van Rossum and first released in 1991, Python's design philosophy emphasizes code readability with its notable use of significant whitespace.
| Basis of comparison | Python 3 | Python 2 |
|---|---|---|
| Function print | print ("hello") | print "hello" |
| Division of Integers | Whenever two integers are divided, you get a float value | When two integers are divided, you always provide integer value |
| Unicode | In Python 3, default storing of strings is Unicode | To store Unicode string value, you require to define them with "u" |
| Syntax | The syntax is simpler and easily understandable | The syntax of Python 2 was comparatively difficult to understand |
| Rules of ordering Comparisons | In this version, Rules of ordering comparisons have been simplified | Rules of ordering comparison are very complex |
| Iteration | The new Range() function introduced to perform iterations | In Python 2, the xrange() is used for iterations |
| Exceptions | It should be enclosed in parenthesis | It should be enclosed in notations |
| Leak of variables | The value of variables never changes | The value of the global variable will change while using it inside for-loop |
| Backward compatibility | Not difficult to port python 2 to python 3 but it is never reliable | Python version 3 is not backwardly compatible with Python 2 |
| Library | Many recent developers are creating libraries which you can only use with Python 3 | Many recent developers are creating libraries which you can only use with Python 3. Many older libraries created for Python 2 is not forward-compatible |
Python 3
// Python3.X
def main():
print("Hello World!")
if __name__== "__main__":
main()
Python2
// Python2.X
def main():
print "Hello World!"
if __name__== "__main__":
main()
When it comes to Python version 2 vs. 3 today, Python 3 is the outright winner. That's because Python 2 won't be available after 2020. Mass Python 3 adoption is the clear direction of the future.
After considering declining support for Python 2 programming language and added benefits from upgrades to Python 3, it is always advisable for a new developer to select Python version 3. However, if a job demands Python 2 capabilities, that would be an only compelling reason to use this version.
- Python 3 syntax is simpler and easily understandable whereas Python 2 syntax is comparatively difficult to understand.
- Python 3 default storing of strings is Unicode whereas Python 2 stores need to define Unicode string value with "u."
- Python 3 value of variables never changes whereas in Python 2 value of the global variable will be changed while using it inside for-loop.
- Python 3 exceptions should be enclosed in parenthesis while Python 2 exceptions should be enclosed in notations.
- Python 3 rules of ordering comparisons are simplified whereas Python 2 rules of ordering comparison are complex.
- Python 3 offers Range() function to perform iterations whereas, In Python 2, the xrange() is used for iterations.
Run the following commands as root or user with sudo access to update the packages list and install the prerequisites:
// Run
sudo apt update
sudo apt install software-properties-common
Add the deadsnakes PPA to your system’s sources list:
// Run
sudo add-apt-repository ppa:deadsnakes/ppa
When prompted press Enter to continue:
// Run
Press [ENTER] to continue or Ctrl-c to cancel adding it.
Once the repository is enabled, install Python 3.8 with:
// Run
sudo apt install python3.8
Verify that the installation was successful by typing:
// Run
python3.8 --version
Python 3.8.0
At this point, Python 3.8 is installed on your Ubuntu system, and you can start using it.
This is a complete Python Course: Go From Beginner To Expert , In this course you will learn from scratch. We will assume that you are a complete beginner and by the end of the course you will be at advanced level. This course contain Real-World examples and Hands On practicals. We will guide you step by step so that you can understand better. This course will allow you to work on the Real-World as a professional.
A chatbot is a software application used to conduct an on-line chat conversation via text or text-to-speech, in lieu of providing direct contact with a live human agent.
It is an assistant that communicates with us through text messages, a virtual companion that integrates into websites, applications or instant messengers and helps entrepreneurs to get closer to customers. Such a bot is an automated system of communication with users.
- How do I do specifically so and so?
- No problem! Just do this.
Reach out to me at one of the following places!
- Linkedin at
Kalifiabillal - Twitter at
@Kalifiabillal
- MIT license
- Copyright 2020 © Kalifiabillal.