HitchHiker's guide to python

Introduction to python programming

Transcript

1. Hitchhiker's guide to the Python By Smit Thakkar and Parth Jansari
2. About me #SMIT • Lead Software Developer at LendCypher • Former Technical Co-Founder at Punchit.io • Author of open source Flask Extensions : Flask-NSFW and Flask-ReqParse • Technology Stack: Python, Flask, MongoDB, PostgresQL and Angular2 • Hackathon Lover • Email : smitthakkar96@gmail.com • Github : github.com/smitthakkar96 • Facebook : https://www.facebook.com/geekysmit
3. About me #PARTH • I work for Lendcypher as a UX Designer. • Former Co-Founder at Inktwig. • Weapons: Html, CSS, JS, Angular2, Corel Painter, photoshop, illustrator, after effects and blender • Hackathon Lover & Hardcore Gamer • parthjansari@outlook.com • github.com/parth181195 • instagram.com/parth_jansari/
4. Agenda • Our Hacker backpack • Setting up development environment for python • History of Python • Features of Python? • Who Uses Python • Kickstarting Python Programming ◦ Variables, Datatypes and operators ◦ Control flow structures and looping ◦ Exception handling ◦ Data Structures ◦ Python PreBuilt Modules • Q/A
5. Our Hacker Backpack
6. Let’s install Python and Visual Studio Code
7. • In 1980 founded by Guido Van Rossum • The name Python belongs to popular T.V. show “Monty Python's Flying Circus” not the raptile. • Popular versions are Python 2 and Python 3. • Designed for Students who are learning programming as their first language • MIT has enrolled Python as their first language. History of Python
8. Features of Python • Interpreted language • Easy to learn • Code is readable • Beginner friendly community • Open Source and Community driven • Crossplatform • Large collection of library packages available
9. Who uses python
10. To be continued..
11. Introduction to Interpreter • Invoking Interpreter ◦ ‘ipython’ # Interactive Mode ◦ ‘python program.py’ # Script Mode • Prompts ◦ ‘>>>’ # Primary Prompt ◦ ‘...’ # Secondary Prompt • Using Python as a Desk Calculator ◦ +, -, *, /, **, //, % # Operators • NamError
12. Variables and Datatypes in Python • Ducked Typed Language • type() • dir() • Comments ‘#’ • Overriding Variable
13. Strings - I • Immutable type • ‘Single Quoted String’ and “Double Quoted String” are same! • Using ‘\’ for escaping characters • Multiline strings ◦ String multiplication (*) • Concatenation • len()
14. String - II | P | Y | T | H | O | N | ----------------------------- 0 1 2 3 4 5 -6 -5 -4 -3 -2 -1 • Indexing (Python supports Negative Indexing!)
15. Control Flow Structures in Python
17. Data Flow Structures • For in • While • BUT NO “Do While Loops”
18. For Loop
19. While Loop
20. Exception Handling
21. Functions in Python
22. Data Structures in Python • Arrays • Lists • Dictionary • Tuples • Sets
23. Array • An Array is fixed size sequential collection of elements • An Array consists elements of same data type. • An Array is a mutable data type • Array Functions ◦ tofile ◦ count ◦ tostring ◦ pop ◦ insert ◦ index
24. Lists • Lists in python are mutable data types consisting heterogeneous mixture of elements with different datatypes. • Lists supports negative indexing and slicing • List functions ◦ tofile ◦ count ◦ tostring ◦ pop ◦ insert ◦ index
25. Tuples • Tuples are immutable lists
26. Sets • Sets are distinct unordered set of elements stored in a data structure.
27. Dictionary • Mutable type • Keys are unique • Immutable type can be key • Example ◦ user = {‘id’: 1, ‘name’: ‘Bob’, ‘email’: ‘bob101@gmail.com’} • d.keys() • d.values() • d.items() • enumerate()
28. Python Prebuilt Modules • JSON • SQLite • SYS • OS
29. Q/A
30. Thank You