A Crash Course in Python 1
A Crash Course in Python
Based on
Learning Python
By Mark Lutz & David Ascher, O'Reilly
http://proquestcombo.safaribooksonline.com/book/programming/python/9780596805395
Presented by
Cuauhtémoc Carbajal
ITESM CEM
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A Crash Course in Python, Study notes of Object Oriented Programming
▫ Python and Tkinter Programming by John E. Grayson, Manning, ISBN 1-884777-81-3. Page 4. 4.
Typology: Study notes
2022/2023
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A Crash Course in Python^
A Crash Course in PythonBased onLearning PythonBy Mark Lutz & David Ascher, O'Reillyhttp://proquestcombo.safaribooksonline.com/book/programming/python/9780596805395Presented byCuauhtémoc Carbajal^ ITESM CEM
A Crash Course in Python^
Agenda^ ^ Why Python^ ^ Python References^ ^ Python Advantages^ ^ Python Toolkit^ ^ Getting Python^ ^ Running Python^ ^ Python Principles^ ^ Python Language and Examples
Why Python?
It’s Easy to Use
^ High-level language
: Distinct from the low-level processor operations; closer to human language thanmachine language "Programming at the speed of thought" Increases productivity^ ^ Python programs three to five times shorter than Java^ ^ Python programs five to ten times shorter than C++ Normally, “Programming is like making fine furniture withan axe and a nail file.” Python makes it more like working with a table saw & alathe^ ^ You still have to learn how to use them, but they’re theright tools for the job
Python Is Easy to Use(continued)^ ^ Python Program^ print "Game Over!"^ ^ C++ Program^ #include int main(){ std::cout << "Game Over!" << std::endl;return 0;}
7
Python Is Object-Oriented^ ^ Object-oriented programming(OOP):^ Methodology that definesproblems in terms of objects that sendmessages to each other^ ^ In a game, a
Missile^ object could send a Ship object a message to^
Explode
^ OOP not required, unlike Java and C#
Python Is a “Glue” Language^ ^ Can be integrated with other languages^ ^ C/C++^ ^ Java^ ^ Use existing code^ ^ Leverage strengths of other languages^ ^ Extra speed that C or C++ offers
Python Has a StrongCommunity^ ^ As an approachable language, hasapproachable community^ ^ Python Tutor mailing list^ ^ http://mail.python.org/mailman/listinfo/tutor^ ^ Perfect for beginners^ ^ No actual "tutors" or "students"
Python Is Free and OpenSource^ ^ Open source
: Publicly available; open
source software typically programmedby volunteers; anyone can use sourcecode without fee Can modify or even resell Python Embracing open-source ideals is part ofwhat makes Python successful
A Crash Course in Python^
Fastest Way to Learn^ ^ Study examples^ ^ Lay foundations without surprises^ ^ Note the exceptions to experience^ ^ Do quick pop quizzes^ ^ Practice what you have learned
A Crash Course in Python^
Python Advantages^ ^ Object-Oriented^ ^ Dynamic Type Checking makes it inherentlygeneric – C++ templates for free!^ ^ Free, as in Open Source free^ ^ Portable^ ^ Powerful language constructs / features^ ^ Powerful toolkit / library^ ^ Mixable with other languages^ ^ Easy to use & learn
How Python Is Used^ ^ System utilities^ ^ GUIs using Tkinter^ ^ Component integration^ ^ Rapid prototyping^ ^ Internet scripting^ ^ Database programming
Getting Python^ ^ On the Web:^ www.python.org
Running Python (2)^ ^ From platform specific shells^ ^ #!/usr/local/bin/python^ ^ print "Hello there"^ Or^ ^ #!/usr/bin/env python^ ^ print "Hello there"
Python defined as anenvironment variable
Running Python (3)^ ^ Embedded in another system^ ^ #include <Python.h>^ ^ //...^ ^ Py_Initialize();^ ^ PyRun_SimpleString("x=pfx+root+sfx");^ ^ //...^ ^ Platform-specific invocation^ ^ E.g., Double clicking
.py^ files