Princeton University COS 333: Advanced Programming Techniques A Subset of Python 2.7
|
|
- Kelly Henderson
- 5 years ago
- Views:
Transcription
1 Princeton University COS 333: Advanced Programming Techniques A Subset of Python 2.7 Program Structure # Print "hello world" to stdout. print 'hello, world' # Print "hello world" to stdout. def f(): print 'hello, world' if name == ' main ': f() def sqr(i): return i * i def main(): print sqr(5) if name == ' main ': main() The compiler must see the definition of a function before the interpreter sees a call of that function. Typically a module must import names from other modules. import module # Makes module namespace available within this module. from module import name # Adds name from module into this module's namespace. Building and Running $ python module.py $ chmod 700 module.py $./module.py $ python >>> import module >>> module.main() Page 1 of 7
2 Terminal I/O Reading from stdin: str = raw_input() str = raw_input(promptstr) from sys import stdin str = stdin.readline() Writing to stdout: print str Writing to stderr: from sys import stderr stderr.write(str) Keywords and, assert, break, class, continue, def, del, elif, else, except, exec, finally, for, from, global, if, import, in, is, lambda, not, or, pass, print, raise, return, try, while, with yield Primitive Data Types Integer: 1, 12345, 01, , 0x1, 0x1DB5 (no theoretical size limit) Floating point number: 0.0, 1.23, 1.23e4 String: 'hi', "hi" Boolean: True, False Null object: None A datum of a primitive type is an object. Conversions: int(obj), float(obj), str(obj), bool(obj) Type checking: isinstance(obj, class) No declaration ; variables are created when first assigned a value del(obj) deletes obj Operators {key:expr,...} (1) dictionary creation [expr,...] (2) list creation (expr,...) (3) tuple creation or just parentheses f(expr,...) (4) function call x[startindex:stopindex] (5) slicing (for sequences) x[index] (6) indexing (for containers) x.attr (7) attribute reference x**y (8) exponentiation ~x (9) bitwise NOT +x, -x (10) unary plus, unary minus x*y, x/y, x//y, x%y (11) mult, div, truncating div, remainder x+y, x-y (12) addition, subtraction x<<i, x>>i (13) left-shift, right-shift x&y (14) bitwise AND x^y (15) bitwise XOR x y (16) bitwise OR Page 2 of 7
3 x<y, x<=y, x>y, x>=y (17) relational x!=y, x==y (17) relational x is y, x is not y (18) identity tests x in y, x not in y (19) membership tests not x (20) logical NOT x and y (21) logical AND x or y (22) logical OR formatstr % tuple string formatting (formatstr as in C) '%d plus %f is %f' % (i, x, i+x) Statements Assignment: var=expr, var+=expr, var-=expr, var*=expr, var/=expr, var//=expr, var%=expr, var**=expr, var&=expr, var =expr, var^=expr, var>>=expr, var<<=expr del(var) deletes var Unpacking assignment: var1,var2,... = iterable No-op: Assert: Print: pass assert expr, message print expr,... print expr,..., hack Function call: f(expr, name=expr,...) Object references are passed by value return as in C Selection: if expr: elif expr: else: Note: False, 0, None, '', "", [], (), and {} all indicate logical FALSE; any other value indicates logical TRUE Iteration: while expr: Note: False, 0, None, '', "", [], (), and {} all indicate logical FALSE; any other value indicates logical TRUE Page 3 of 7
4 for var in range(startint, stopint): for var in range(stopint): for var in iterable: for key,value in mapping.iteritems(): break as in C continue as in C Exception handling: try: except ExceptionType, e: raise ExceptionType(str) Indentation matters!!! Classes, Objects, and Object References All fields and methods are public. By convention, consider fields and methods with leading underscore to be private. class MyClass (object): def init (self, i): self._i = i def get(self): return self._i def set(self, i): self._i = i def str (self): return str(self._i) def eq (self, other): return self._i == other._i def ne (self, other): return self._i!= other._i def hash (self): return hash(self._i) # weak if name == ' main ': myobj1 = MyClass(5) print myobj1._i myobj1.set(10) print myobj1.get() print str(myobj1) print myobj1 # No privacy!!! # calls myobj1. str () # calls myobj1. str () Page 4 of 7
5 myobj2 = MyClass(10) if (myobj1 == myobj2): print 'equal' if (myobj1!= myobj2): print 'not equal' dict = {myobj1:myobj2} # calls myobj1. eq (myobj2) # calls myobj1. ne (myobj2) # calls myobj1. hash () del(myobj2) del(myobj1) Data Structures All are objects defined in a standard library. Iterable Container Mapping Dictionary Sequence String Tuple List Set File String (immutable, hashable) str = 'hi' str = "hi" str = r'hi' # raw string; backslashes not interpreted Tuple (immutable, hashable) tuple = (obj1, obj2,...) tuple = (obj1, ) hack List (mutable, not hashable) list = [obj1, obj2,...] Set (mutable, not hashable) set = set(list1) Dictionary (mutable, not hashable; keys must be hashable) dict = {keyobj1:valueobj1, keyobj2:valueobj2,...} File file = open('filename', mode='somemode') somemode: r, w, a, r+, w+, a+ (as in C) Nonmutating Operator on Iterables bool = obj in iterable # bool = iterable. contains (obj) Nonmutating Function on Containers i = len(container) # i = container. len () Page 5 of 7
6 Nonmutating Operators/Methods on Sequences seq1 = seq2 + seq3 # seq1 = seq2. add (seq3) obj = seq1[i] # obj = seq1. getitem (i) seq1 = seq2[i:j] # seq1 = seq2. getitem (slice(i,j)) i = seq1.count(obj) i = seq1.index(obj) The string class has many more methods. Some useful ones: count, endswith, find, index, isalnum, isalpha, isdigit, islower, isspace, isupper, join, lower, lstrip, replace, rfind, rstrip, split, startswith, strip, upper. Mutating Operators/Functions/Methods on Sequences seq[i] = obj # seq. setitem (i, obj) seq1[i:j] = seq2 # seq1. setitem (slice(i,j), seq2) del(seq[i]) # seq. delitem (i) del(seq[i:j]) # seq. delitem (slice(i,j)) seq1 += seq2 # seq1. iadd (seq2) seq.append(obj) seq.extend(iterable) seq.insert(index, obj) seq.remove(obj) obj = seq.pop() obj = seq.pop(index) seq.reverse() seq.sort() seq.sort(fun) Nonmutating Methods on Sets set1 = set2.copy() set1 = set2.difference(set3) set1 = set2.intersection(set3) bool = set1.issubset(set2) bool = set1.issuperset(set2) set1 = set2.symmetric_difference(set3) set1 = set2.union(set3) Mutating Methods on Sets set1.add(obj) set.clear() set.discard(obj) obj = set1.pop() set.remove(obj) Nonmutating Methods on Mappings map1 = map2.copy() bool = map.has_key(obj) list = map.items() list = map.keys() list = map.values() iterable = map.iteritems() iterable = map.iterkeys() iterable = map.itervalues() obj = map1.get(key) obj = map1.get(key,default) Mutating Methods on Mappings map.clear() Page 6 of 7
7 map1.update(map2) map.setdefault(key) map.setdefault(key,defaultobj) obj = map.pop(key) obj = map.pop(key, defaultobj) obj = map.popitem() Methods on Files str = file.readline() list = file.readlines() print >>file, str file.write(str) file.writelines(list) file.close() # necessary to avoid truncation Command-Line Arguments sys.argv is a list sys.argv[0] is the name of the program sys.argv[1:] are command-line arguments from sys import argv from sys import exit from sys import stderr... if len(argv)!= 3: print >>stderr, 'Usage:', argv[0], 'arg1 arg2' exit(1) Debugging To use the pdb debugger: python -m pdb module.py Debugger commands: help break functionormethod break filename:linenum run list next step continue print expr where quit Etc. Common commands have abbreviations: h, b r, l, n, s, c, p, w, q Blank line means repeat the same command. We'll cover other features of Python throughout the course as necessary. Copyright 2017 by Robert M. Dondero, Jr. Page 7 of 7
Programming Languages: Part 4. Robert M. Dondero, Ph.D. Princeton University
Programming Languages: Part 4 Robert M. Dondero, Ph.D. Princeton University 1 Objectives You will learn/review: In C, Java, and Python... File I/O Data structures Arrays Strings Associative arrays 2 "LineSort"
More informationProgramming Languages: Part 2. Robert M. Dondero, Ph.D. Princeton University
Programming Languages: Part 2 Robert M. Dondero, Ph.D. Princeton University 1 Objectives You will learn/review: In C, Java, and Python... Terminal input/output Data types, operators, statements Multi-file
More informationProgramming Languages Part 4. Copyright 2017 by Robert M. Dondero, Ph.D. Princeton University
Programming Languages Part 4 Copyright 2017 by Robert M. Dondero, Ph.D. Princeton University 1 Objectives You will learn/review: In Java and Python... Command-line arguments File I/O Data structures Arrays,
More informationProgramming Languages Part 2. Copyright 2017 by Robert M. Dondero, Ph.D. Princeton University
Programming Languages Part 2 Copyright 2017 by Robert M. Dondero, Ph.D. Princeton University 1 Objectives You will learn/review: In Java and Python... Data types and operators Terminal input/output Statements
More informationPart IV. More on Python. Tobias Neckel: Scripting with Bash and Python Compact Max-Planck, February 16-26,
Part IV More on Python Compact Course @ Max-Planck, February 16-26, 2015 36 More on Strings Special string methods (excerpt) s = " Frodo and Sam and Bilbo " s. islower () s. isupper () s. startswith ("
More informationPython Tutorial. Day 1
Python Tutorial Day 1 1 Why Python high level language interpreted and interactive real data structures (structures, objects) object oriented all the way down rich library support 2 The First Program #!/usr/bin/env
More informationPrinceton University COS 333: Advanced Programming Techniques A Subset of PHP
Princeton University COS 333: Advanced Programming Techniques A Subset of PHP Program Structure -----------------------------------------------------------------------------------
More informationChapter 1 Summary. Chapter 2 Summary. end of a string, in which case the string can span multiple lines.
Chapter 1 Summary Comments are indicated by a hash sign # (also known as the pound or number sign). Text to the right of the hash sign is ignored. (But, hash loses its special meaning if it is part of
More informationPrinceton University COS 333: Advanced Programming Techniques A Subset of C90
Princeton University COS 333: Advanced Programming Techniques A Subset of C90 Program Structure /* Print "hello, world" to stdout. Return 0. */ { printf("hello, world\n"); -----------------------------------------------------------------------------------
More informationBabu Madhav Institute of Information Technology, UTU 2015
Five years Integrated M.Sc.(IT)(Semester 5) Question Bank 060010502:Programming in Python Unit-1:Introduction To Python Q-1 Answer the following Questions in short. 1. Which operator is used for slicing?
More informationIntroduction to Python
Introduction to Python خانه ریاضیات اصفهان فرزانه کاظمی زمستان 93 1 Why Python? Python is free. Python easy to lean and use. Reduce time and length of coding. Huge standard library Simple (Python code
More informationIntroduction to Python for Plone developers
Plone Conference, October 15, 2003 Introduction to Python for Plone developers Jim Roepcke Tyrell Software Corporation What we will learn Python language basics Where you can use Python in Plone Examples
More information\n is used in a string to indicate the newline character. An expression produces data. The simplest expression
Chapter 1 Summary Comments are indicated by a hash sign # (also known as the pound or number sign). Text to the right of the hash sign is ignored. (But, hash loses its special meaning if it is part of
More informationThere are four numeric types: 1. Integers, represented as a 32 bit (or longer) quantity. Digits sequences (possibly) signed are integer literals:
Numeric Types There are four numeric types: 1. Integers, represented as a 32 bit (or longer) quantity. Digits sequences (possibly) signed are integer literals: 1-123 +456 2. Long integers, of unlimited
More informationIntroductory Linux Course. Python I. Martin Dahlö UPPMAX. Author: Nina Fischer. Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Martin Dahlö UPPMAX Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University August, 2018 Outline Python basics get started with Python Data types Control
More informationStrings. Upsorn Praphamontripong. Note: for reference when we practice loop. We ll discuss Strings in detail after Spring break
Note: for reference when we practice loop. We ll discuss Strings in detail after Spring break Strings Upsorn Praphamontripong CS 1111 Introduction to Programming Spring 2018 Strings Sequence of characters
More informationString Processing CS 1111 Introduction to Programming Fall 2018
String Processing CS 1111 Introduction to Programming Fall 2018 [The Coder s Apprentice, 10] 1 Collections Ordered, Dup allow List Range String Tuple Unordered, No Dup Dict collection[index] Access an
More informationSenthil Kumaran S
Senthil Kumaran S http://www.stylesen.org/ Agenda History Basics Control Flow Functions Modules History What is Python? Python is a general purpose, object-oriented, high level, interpreted language Created
More informationLecture no
Advanced Algorithms and Computational Models (module A) Lecture no. 3 29-09-2014 Giacomo Fiumara giacomo.fiumara@unime.it 2014-2015 1 / 28 Expressions, Operators and Precedence Sequence Operators The following
More informationFundamentals of Programming (Python) Object-Oriented Programming. Ali Taheri Sharif University of Technology Spring 2018
Fundamentals of Programming (Python) Object-Oriented Programming Ali Taheri Sharif University of Technology Outline 1. Python Data Types 2. Classes and Objects 3. Defining Classes 4. Working with Objects
More informationAdvanced Python. Executive Summary, Session 1
Advanced Python Executive Summary, Session 1 OBJECT: a unit of data of a particular type with characteristic functionality (i.e., methods and/or use with operators). Everything in Python is an object.
More informationInteractive use. $ python. >>> print 'Hello, world!' Hello, world! >>> 3 $ Ctrl-D
1/58 Interactive use $ python Python 2.7.5 (default, Mar 9 2014, 22:15:05) [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin Type "help", "copyright", "credits" or "license" for more information.
More informationInteractive use. $ python. >>> print 'Hello, world!' Hello, world! >>> 3 $ Ctrl-D
1/60 Interactive use $ python Python 2.7.5 (default, Mar 9 2014, 22:15:05) [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin Type "help", "copyright", "credits" or "license" for more information.
More informationCSCE 110 Programming I Basics of Python: Variables, Expressions, Input/Output
CSCE 110 Programming I Basics of Python: Variables, Expressions, Input/Output Dr. Tiffani L. Williams Department of Computer Science and Engineering Texas A&M University Spring 2011 Python Python was developed
More informationChapter 3 : Informatics Practices. Class XI ( As per CBSE Board) Python Fundamentals. Visit : python.mykvs.in for regular updates
Chapter 3 : Informatics Practices Class XI ( As per CBSE Board) Python Fundamentals Introduction Python 3.0 was released in 2008. Although this version is supposed to be backward incompatibles, later on
More informationGetting Started with Python
Fundamentals of Programming (Python) Getting Started with Python Sina Sajadmanesh Sharif University of Technology Some slides have been adapted from Python Programming: An Introduction to Computer Science
More informationVariable and Data Type I
Islamic University Of Gaza Faculty of Engineering Computer Engineering Department Lab 2 Variable and Data Type I Eng. Ibraheem Lubbad September 24, 2016 Variable is reserved a location in memory to store
More informationHere n is a variable name. The value of that variable is 176.
UNIT II DATA, EXPRESSIONS, STATEMENTS 9 Python interpreter and interactive mode; values and types: int, float, boolean, string, and list; variables, expressions, statements, tuple assignment, precedence
More informationIntroductory Linux Course. Python I. Pavlin Mitev UPPMAX. Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Python I Pavlin Mitev UPPMAX Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University August, 2017 Outline Python introduction Python basics get started with
More informationSTSCI Python Introduction. Class URL
STSCI Python Introduction Class 2 Jim Hare Class URL www.pst.stsci.edu/~hare Each Class Presentation Homework suggestions Example files to download Links to sites by each class and in general I will try
More informationEE 355 Unit 17. Python. Mark Redekopp
1 EE 355 Unit 17 Python Mark Redekopp 2 Credits Many of the examples below are taken from the online Python tutorial at: http://docs.python.org/tutorial/introduction.html 3 Python in Context Interpreted,
More informationCPTS 111, Fall 2011, Sections 6&7 Exam 3 Review
CPTS 111, Fall 2011, Sections 6&7 Exam 3 Review File processing Files are opened with the open() command. We can open files for reading or writing. The open() command takes two arguments, the file name
More informationPython. Executive Summary
Python Executive Summary DEFINITIONS OBJECT: a unit of data of a particular type with characteristic functionality (i.e., methods and/or response to operators). Everything in Python is an object. "atomic"
More information18.1. CS 102 Unit 18. Python. Mark Redekopp
18.1 CS 102 Unit 18 Python Mark Redekopp 18.2 Credits Many of the examples below are taken from the online Python tutorial at: http://docs.python.org/tutorial/introduction.html 18.3 Python in Context Two
More informationFundamentals of Programming (Python) Getting Started with Programming
Fundamentals of Programming (Python) Getting Started with Programming Ali Taheri Sharif University of Technology Some slides have been adapted from Python Programming: An Introduction to Computer Science
More informationENGR 101 Engineering Design Workshop
ENGR 101 Engineering Design Workshop Lecture 2: Variables, Statements/Expressions, if-else Edgardo Molina City College of New York Literals, Variables, Data Types, Statements and Expressions Python as
More informationGetting Started. Office Hours. CSE 231, Rich Enbody. After class By appointment send an . Michigan State University CSE 231, Fall 2013
CSE 231, Rich Enbody Office Hours After class By appointment send an email 2 1 Project 1 Python arithmetic Do with pencil, paper and calculator first Idle Handin Help room 3 What is a Computer Program?
More informationPYTHON FOR KIDS A Pl ayfu l I ntrodu ctio n to Prog r am m i ng J a s o n R. B r i g g s
PYTHON FO R K I D S A P l ay f u l I n t r o d u c t i o n to P r o g r a m m i n g Jason R. Briggs Index Symbols and Numbers + (addition operator), 17 \ (backslash) to separate lines of code, 235 in strings,
More informationPython review. 1 Python basics. References. CS 234 Naomi Nishimura
Python review CS 234 Naomi Nishimura The sections below indicate Python material, the degree to which it will be used in the course, and various resources you can use to review the material. You are not
More informationAnd Parallelism. Parallelism in Prolog. OR Parallelism
Parallelism in Prolog And Parallelism One reason that Prolog is of interest to computer scientists is that its search mechanism lends itself to parallel evaluation. In fact, it supports two different kinds
More informationModule 3: Strings and Input/Output
Module 3: Strings and Input/Output Topics: Strings and their methods Printing to standard output Reading from standard input Readings: ThinkP 8, 10 1 Strings in Python: combining strings in interesting
More informationBasic Python Revision Notes With help from Nitish Mittal
Basic Python Revision Notes With help from Nitish Mittal HELP from Documentation dir(module) help() Important Characters and Sets of Characters tab \t new line \n backslash \\ string " " or ' ' docstring
More informationBeyond Blocks: Python Session #1
Beyond Blocks: Session #1 CS10 Spring 2013 Thursday, April 30, 2013 Michael Ball Beyond Blocks : : Session #1 by Michael Ball adapted from Glenn Sugden is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike
More informationPython source materials
xkcd.com/353 Python source materials Bob Dondero s Python summary from Spring 2011 http://www.cs.princeton.edu/courses/archive/spring11/cos333/ reading/pythonsummary.pdf bwk s Python help file: http://
More informationPython I. Some material adapted from Upenn cmpe391 slides and other sources
Python I Some material adapted from Upenn cmpe391 slides and other sources Overview Names & Assignment Data types Sequences types: Lists, Tuples, and Strings Mutability Understanding Reference Semantics
More informationPython - 2. Jim Eng
Python - 2 Jim Eng jimeng@umich.edu Lists Dictionaries Try... except Methods and Functions Classes and Objects Midterm Review Overview Patterns in programming - 1 Sequential steps Conditional steps Repeated
More informationVariable and Data Type I
The Islamic University of Gaza Faculty of Engineering Dept. of Computer Engineering Intro. To Computers (LNGG 1003) Lab 2 Variable and Data Type I Eng. Ibraheem Lubbad February 18, 2017 Variable is reserved
More informationAdvanced Algorithms and Computational Models (module A)
Advanced Algorithms and Computational Models (module A) Giacomo Fiumara giacomo.fiumara@unime.it 2014-2015 1 / 34 Python's built-in classes A class is immutable if each object of that class has a xed value
More information(CC)A-NC 2.5 by Randall Munroe Python
http://xkcd.com/353/ (CC)A-NC 2.5 by Randall Munroe Python Python: Operative Keywords Very high level language Language design is focused on readability Mulit-paradigm Mix of OO, imperative, and functional
More informationPositional, keyword and default arguments
O More on Python n O Functions n Positional, keyword and default arguments in repl: >>> def func(fst, snd, default="best!"):... print(fst, snd, default)... >>> func(snd='is', fst='python') ('Python', 'is',
More information06/11/2014. Subjects. CS Applied Robotics Lab Gerardo Carmona :: makeroboticsprojects.com June / ) Beginning with Python
CS95003 - Applied Robotics Lab Gerardo Carmona :: makeroboticsprojects.com June / 2014 Subjects 1) Beginning with Python 2) Variables 3) Strings 4) Basic arithmetic operators 5) Flow control 6) Comparison
More informationCOLLEGE OF ENGINEERING, NASHIK-4
Pune Vidyarthi Griha s COLLEGE OF ENGINEERING, NASHIK-4 DEPARTMENT OF COMPUTER ENGINEERING Important PYTHON Questions 1. What is Python? Python is a high-level, interpreted, interactive and object-oriented
More informationPython A Technical Introduction. James Heliotis Rochester Institute of Technology December, 2009
Python A Technical Introduction James Heliotis Rochester Institute of Technology December, 2009 Background & Overview Beginnings Developed by Guido Van Rossum, BDFL, in 1990 (Guido is a Monty Python fan.)
More informationTable of Contents EVALUATION COPY
Table of Contents Introduction... 1-2 A Brief History of Python... 1-3 Python Versions... 1-4 Installing Python... 1-5 Environment Variables... 1-6 Executing Python from the Command Line... 1-7 IDLE...
More informationLexical Considerations
Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.035, Fall 2005 Handout 6 Decaf Language Wednesday, September 7 The project for the course is to write a
More informationJava for Python Programmers. Comparison of Python and Java Constructs Reading: L&C, App B
Java for Python Programmers Comparison of Python and Java Constructs Reading: L&C, App B 1 General Formatting Shebang #!/usr/bin/env python Comments # comments for human readers - not code statement #
More informationLecture 27. Lecture 27: Regular Expressions and Python Identifiers
Lecture 27 Lecture 27: Regular Expressions and Python Identifiers Python Syntax Python syntax makes very few restrictions on the ways that we can name our variables, functions, and classes. Variables names
More informationUNIVERSITÀ DI PADOVA. < 2014 March >
UNIVERSITÀ DI PADOVA < 2014 March > Easy-to-learn: Python has relatively few keywords, simple structure, and a clearly defined syntax. Easy-to-read: Python code is much more clearly defined and visible
More informationBasic Concepts. Computer Science. Programming history Algorithms Pseudo code. Computer - Science Andrew Case 2
Basic Concepts Computer Science Computer - Science - Programming history Algorithms Pseudo code 2013 Andrew Case 2 Basic Concepts Computer Science Computer a machine for performing calculations Science
More informationDuration: Six Weeks Faculty : Mr Sai Kumar, Having 10+ Yrs Experience in IT
Duration: Six Weeks Faculty : Mr Sai Kumar, Having 10+ Yrs Experience in IT Online Classes are also available Recorded class will be given if you miss any day interview tips and quiz at end of every module
More informationGOLD Language Reference Manual
GOLD Language Reference Manual Language Guru: Timothy E. Chung (tec2123) System Architect: Aidan Rivera (ar3441) Manager: Zeke Reyna (eer2138) Tester: Dennis Guzman (drg2156) October 16th, 2017 1 Introduction
More informationJython. secondary. memory
2 Jython secondary memory Jython processor Jython (main) memory 3 Jython secondary memory Jython processor foo: if Jython a
More informationCIS192 Python Programming. Robert Rand. August 27, 2015
CIS192 Python Programming Introduction Robert Rand University of Pennsylvania August 27, 2015 Robert Rand (University of Pennsylvania) CIS 192 August 27, 2015 1 / 30 Outline 1 Logistics Grading Office
More informationTable of Contents. Preface... xxi
Table of Contents Preface... xxi Chapter 1: Introduction to Python... 1 Python... 2 Features of Python... 3 Execution of a Python Program... 7 Viewing the Byte Code... 9 Flavors of Python... 10 Python
More informationPython memento TI-Smart Grids
Python memento TI-Smart Grids Genoveva Vargas-Solar French Council of Scientific Research, LIG genoveva.vargas@imag.fr http://vargas-solar.com/data-centric-smart-everything/ * This presentation was created
More informationIntroduction to Python
May 25, 2010 Basic Operators Logicals Types Tuples, Lists, & Dictionaries and or Building Functions Labs From a non-lab computer visit: http://www.csuglab.cornell.edu/userinfo Running your own python setup,
More information(IUCAA, Pune) kaustubh[at]iucaa[dot]ernet[dot]in.
Basics of Python - 2 by Kaustubh Vaghmare (IUCAA, Pune) E-mail: kaustubh[at]iucaa[dot]ernet[dot]in 1 of 54 Sunday 16 February 2014 05:30 PM Our First Program - Rewritten! Let us introduce the following
More informationBasic Syntax - First Program 1
Python Basic Syntax Basic Syntax - First Program 1 All python files will have extension.py put the following source code in a test.py file. print "Hello, Python!";#hello world program run this program
More informationCSCE 110 Programming I
CSCE 110 Programming I Basics of Python (Part 1): Variables, Expressions, and Input/Output Dr. Tiffani L. Williams Department of Computer Science and Engineering Texas A&M University Spring 2013 Tiffani
More informationPython for ArcGIS. Lab 1.
Python for ArcGIS. Lab 1. Python is relatively new language of programming, which first implementation arrived around early nineties of the last century. It is best described as a high level and general
More informationConstants. Variables, Expressions, and Statements. Variables. x = 12.2 y = 14 x = 100. Chapter
Variables, Expressions, and Statements Chapter 2 Unless otherwise noted, the content of this course material is licensed under a Creative Commons Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/.
More informationCS Programming Languages: Python
CS 3101-1 - Programming Languages: Python Lecture 5: Exceptions / Daniel Bauer (bauer@cs.columbia.edu) October 08 2014 Daniel Bauer CS3101-1 Python - 05 - Exceptions / 1/35 Contents Exceptions Daniel Bauer
More informationWorking with Sequences: Section 8.1 and 8.2. Bonita Sharif
Chapter 8 Working with Sequences: Strings and Lists Section 8.1 and 8.2 Bonita Sharif 1 Sequences A sequence is an object that consists of multiple data items These items are stored consecutively Examples
More informationENGR 102 Engineering Lab I - Computation
ENGR 102 Engineering Lab I - Computation Learning Objectives by Week 1 ENGR 102 Engineering Lab I Computation 2 Credits 2. Introduction to the design and development of computer applications for engineers;
More informationLecture 5: Python PYTHON
Lecture 5: Python PYTHON xkcd.com/208 xkcd.com/519 Python constructs constants, variables, types operators and expressions statements, control flow aggregates functions libraries classes modules etc. Constants,
More informationIntroductory Linux Course. Python I. Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Python I Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University nina.fischer@icm.uu.se January 12, 2017 Outline q Python introducjon q Python basics get started
More informationegrapher Language Reference Manual
egrapher Language Reference Manual Long Long: ll3078@columbia.edu Xinli Jia: xj2191@columbia.edu Jiefu Ying: jy2799@columbia.edu Linnan Wang: lw2645@columbia.edu Darren Chen: dsc2155@columbia.edu 1. Introduction
More informationIntroductory Linux Course. Python I. Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Python I Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University nina.fischer@icm.uu.se August 26, 2016 Outline q Python introducjon q Python basics get started
More informationCIS192 Python Programming
CIS192 Python Programming Generators Exceptions and IO Eric Kutschera University of Pennsylvania February 13, 2015 Eric Kutschera (University of Pennsylvania) CIS 192 February 13, 2015 1 / 24 Outline 1
More informationJAC444 - Lecture 1. Introduction to Java Programming Language Segment 4. Jordan Anastasiade Java Programming Language Course
JAC444 - Lecture 1 Introduction to Java Programming Language Segment 4 1 Overview of the Java Language In this segment you will be learning about: Numeric Operators in Java Type Conversion If, For, While,
More informationExpressions and Data Types CSC 121 Spring 2015 Howard Rosenthal
Expressions and Data Types CSC 121 Spring 2015 Howard Rosenthal Lesson Goals Understand the basic constructs of a Java Program Understand how to use basic identifiers Understand simple Java data types
More informationGIS 4653/5653: Spatial Programming and GIS. More Python: Statements, Types, Functions, Modules, Classes
GIS 4653/5653: Spatial Programming and GIS More Python: Statements, Types, Functions, Modules, Classes Statement Syntax The if-elif-else statement Indentation and and colons are important Parentheses and
More informationSI Networked Computing: Storage, Communication, and Processing, Winter 2009
University of Michigan Deep Blue deepblue.lib.umich.edu 2009-01 SI 502 - Networked Computing: Storage, Communication, and Processing, Winter 2009 Severance, Charles Severance, C. (2008, December 19). Networked
More informationUNIT-III. All expressions involving relational and logical operators will evaluate to either true or false
UNIT-III BOOLEAN VALUES AND OPERATORS: A boolean expression is an expression that is either true or false. The following examples use the operator ==, which compares two operands and produces if they are
More informationIPSL python tutorial: some exercises for beginners
1 of 9 10/22/2013 03:55 PM IPSL python tutorial: some exercises for beginners WARNING! WARNING! This is the FULL version of the tutorial (including the solutions) WARNING! Jean-Yves Peterschmitt - LSCE
More informationPython Objects. Charles Severance. Python for Everybody
Python Objects Charles Severance Python for Everybody www.py4e.com Warning This lecture is very much about definitions and mechanics for objects This lecture is a lot more about how it works and less about
More informationSome material adapted from Upenn cmpe391 slides and other sources
Some material adapted from Upenn cmpe391 slides and other sources History Installing & Running Python Names & Assignment Sequences types: Lists, Tuples, and Strings Mutability Understanding Reference Semantics
More informationThere are two ways to use the python interpreter: interactive mode and script mode. (a) open a terminal shell (terminal emulator in Applications Menu)
I. INTERACTIVE MODE VERSUS SCRIPT MODE There are two ways to use the python interpreter: interactive mode and script mode. 1. Interactive Mode (a) open a terminal shell (terminal emulator in Applications
More informationLecture #15: Generic Functions and Expressivity. Last modified: Wed Mar 1 15:51: CS61A: Lecture #16 1
Lecture #15: Generic Functions and Expressivity Last modified: Wed Mar 1 15:51:48 2017 CS61A: Lecture #16 1 Consider the function find: Generic Programming def find(l, x, k): """Return the index in L of
More informationPrinceton University COS 333: Advanced Programming Techniques A Subset of JavaScript
Princeton University COS 333: Advanced Programming Techniques A Subset of JavaScript Program Structure function sqr(i) var result; // Otherwise result would be global. result = i * i; //
More informationRuby: Introduction, Basics
Ruby: Introduction, Basics Computer Science and Engineering College of Engineering The Ohio State University Lecture 4 Ruby vs Java: Similarities Imperative and object-oriented Classes and instances (ie
More informationPython Tutorial. CSE 3461: Computer Networking
Python Tutorial CSE 3461: Computer Networking 1 Outline Introduction to Python CSE Environment Tips for Python Primitive Types Tips for Encoding/Decoding an IP Address 2 Intro to Python Dynamically typed,
More informationPrinceton University COS 333: Advanced Programming Techniques A Subset of JavaScript
Princeton University COS 333: Advanced Programming Techniques A Subset of JavaScript Program Structure function sqr(i) var result; // Otherwise result would be global. result = i * i; //
More informationStrings are actually 'objects' Strings
Strings are actually 'objects' Strings What is an object?! An object is a concept that we can encapsulate data along with the functions that might need to access or manipulate that data. What is an object?!
More informationFlow Control: Branches and loops
Flow Control: Branches and loops In this context flow control refers to controlling the flow of the execution of your program that is, which instructions will get carried out and in what order. In the
More informationAbout Python. Python Duration. Training Objectives. Training Pre - Requisites & Who Should Learn Python
About Python Python course is a great introduction to both fundamental programming concepts and the Python programming language. By the end, you'll be familiar with Python syntax and you'll be able to
More informationDaMPL. Language Reference Manual. Henrique Grando
DaMPL Language Reference Manual Bernardo Abreu Felipe Rocha Henrique Grando Hugo Sousa bd2440 flt2107 hp2409 ha2398 Contents 1. Getting Started... 4 2. Syntax Notations... 4 3. Lexical Conventions... 4
More informationThere are two ways to use the python interpreter: interactive mode and script mode. (a) open a terminal shell (terminal emulator in Applications Menu)
I. INTERACTIVE MODE VERSUS SCRIPT MODE There are two ways to use the python interpreter: interactive mode and script mode. 1. Interactive Mode (a) open a terminal shell (terminal emulator in Applications
More informationMUTABLE LISTS AND DICTIONARIES 4
MUTABLE LISTS AND DICTIONARIES 4 COMPUTER SCIENCE 61A Sept. 24, 2012 1 Lists Lists are similar to tuples: the order of the data matters, their indices start at 0. The big difference is that lists are mutable
More informationIntroduction to Problem Solving and Programming in Python.
Introduction to Problem Solving and Programming in Python http://cis-linux1.temple.edu/~tuf80213/courses/temple/cis1051/ Overview Types of errors Testing methods Debugging in Python 2 Errors An error in
More information