Python is a popular, general purpose, high-level programming language that is easy to interface with other languages. It has a clear, readable syntax and large standard library. It can be used for a wide range of applications including web development, desktop GUIs, games, science, and more. Major organizations like Google, Yahoo, NASA, and CERN use Python for applications like YouTube, Gmail, mapping tools, and scientific calculations due to its simplicity and flexibility.

1. Introduction
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2. What is Python?
• A programming language
o High-level
o Interpreted
o Open Source
o General purpose
o Object-oriented
o Easy to interface with C/C++/Java/Fortran
o Great interactive environment
o…

3. Why Python?
• There is no best programming language
o It’s up to your needs

4. History
• First Implementation on 1989
• by Guido van Rossum
• Python 2.0 released at 2000
• Python 3.0 released at 2008

5. Progress …
• First in CWI in Science Park Amsterdam.
• 2005 – 2012 in Google
• Present at Dropbox

6. Code Features
• emphasize code readability:
o Beautiful is better than ugly.
o Explicit is better than implicit.
o Simple is better than complex.
o Complex is better than complicated.
o Readability counts.
print(“Hello World !")

7. Implementations
• CPython
• PyPy
• Jython
• IronPython
• Cython
• PyS60
• Pyjamas
• Shed Skin
• …

8. CPython
• Main reference implementation
•
With large libraries written in C & Python
•
Support by almost every OS
o Windows
o Linux
o Mac OS X
o Apple iOS
o Android
o …

9. PyPy
• Alternate general implementation
•
Faster
•
Better memory usage
•
Compatible with popular libraries

10. Jython
• Written in Java
• Can use Java class and modules
• Include most of the python standard library
• Brings Java to Python

11. IronPython
• written entirely in C#
• Employ .NET framework
• First Developed by Microsoft
• Brings .NET classes into Python

12. Cython
•
Can use C/C++ modules & function inside python
• written in Python
•
Is superset of python
•
Brings C/C++ into Python

13. PyS60
• Developed by Nokia
•
Python shell inside S60 device
•
Brings Python into Nokia S60

14. Pyjamas (Pyjs)
• Web & desktop application framework
• Generate JavaScript from Python
• Base on Google web toolkit
• Brings JavaScript in Python

15. Shed Skin
• Compiler for Python
•
Generate C++ code
•
Brings Python in C++

16. Organizational Use
• Google
•
Yahoo
•
NASA
•
CERN

17. • YouTube
•
Gmail (+java)
•
Google Groups
•
Google Maps
•
Parts of Search Engine

18. • Yahoo Groups
•
Yahoo Maps

19. • Speed up Coding Process
•
Make Designing Workflow Easier

20. • Used in Complex Mathematic & Physics Calculation

21. Applications
• Scientific
• Games
• Network
• …

22. Scientific
• Bioinformatics
o AstraZeneca (Drug Discovery)
• GIS and Mapping
o The Blind Audio Tactile mapping System
• Simulation
o Carmanah Lights the Way

23. Games
• Civilization IV
o Major parts of the interface, map
generation, and scripted events are written
entirely in Python, and can be customized.
• Battlefield
o Uses Python for all of its addons and a lot of its
functionality

24. Network
• Bit Torrent
• D-Link Australia
o Control Firmware Updates
• Mozilla Website (with Django)
• Socket Programming

25. PyEverything
• Libraries
• Web framework

26. Libraries
• Huge Standard Library
• Lots of third-party libraries

27. Web-Frameworks
• Django
• Pylons
• Pyramid
• TurboGears
• Web2py
• Tornado
• Flask
• Zope

28. Our Project
download.iut.ac.ir
IUT File Sharing System
- Completely written in Python
- Powered by Django

29. Thank You