...Introduction to Programming with Python 1 Outline Introduction to Python Operators & Expressions Data Types & Type Conversion Variables: Names for data Functions Program Flow (Branching) Input from the user Iteration (Looping) 2 What is Python Python is both an interpreted, general purpose, open source, cross-platform, high level programming language. Python uses an interpreter. This is a software program that convert Python code to machine language. It is easy to jump in and experiment with Python in an interactive fashion. Compiling and interpreting Many languages require you to compile (translate) your program into a form that the machine understands. compile source code Hello.java execute byte code Hello.class output Python is instead directly interpreted into machine instructions. interpret source code Hello.py output 4 Programming basics code or source code: instructions in a program. The sequence of syntax: The set of legal structures and commands that can be used in a particular programming language. output: The messages printed to the user by a program. console: The text box onto which output is printed. 5 The Basic Pattern Most of our programs will use the basic pattern of: Get some user input Perform some algorithm on the input Provide results as output Identifiers in Python Identifiers...
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...or CMP 401 ASSIGNMENT | ORGANIZATION OF PROGRAMMING LANGUAGES | | ANZOTSA JOHN ALAKU | BHU/12/04/05/0042 COMPUTER SCIENCE 400 LEVEL | | | ABRSTRACT My objective for these research was to find out about different programming languages and paradigm in which they belong, the most important use in this research are text and journal by other researchers. After all studies where carried out, I came to a conclusion that one programing language can belong to more than one paradigm C++ C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. Some people say that C++ is a middle language because it has the features of high level and low-level language. As one of the most popular programming languages in the world, C++ is widely used in the software industry. C++ is also used for hardware design to analyze structure. Some of its application domains include systems software, application software, device drivers, embedded software, high-performance server and client applications, and entertainment software such as video games. AspectJ AspectJ is a general-purpose Aspect-Oriented extension to java programming language. It was created at Palo Alto Research Center Incorporated (PARC), now it is an open source project and part of the Eclipse Foundation. AspectJ has everything that Java has and more which...
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...1970’s Dartmouth Basic- was created by John Kemeny and Thomas Kurtz on May 1, 1964. Basic stands for Beginners All-purpose Symbolic Instruction Code . The aims of the BASIC system were: to develop a system and language that was friendly, easy to learn and use, to introduce computing as an adjunct to other courses, to operate an open access policy (i-programmer.info, 2010). Pascal- was created by Niklaus Wirth in 1972. He wanted a language suitable for teaching but for teaching computer science. It is best described as a simplified version of Algol. It was simplified both to make it easier to learn and to make it easier to compile (i-programmer.info, 2010). C- Was created by Ken Thompson iin the form of B and tweaked by Dennis Ritchie and renamed C in the 1970’s. It was the original code Unix was written in. Its function was for ease of use (i-programmer.info, 2010). Forth- was created by Charles H Moore in the 1970’s. The motivation behind this language was for both interactive execution of commands and the ability to compile sequences of commands for later execution (i-programmer.info, 2010). PLEX (Programming Language for EXchanges)- was created by Goran Hemdahl at Ericsson in the 1970’s. It is a special-purpose, pseudo-parallel and event-driven real-time programming language dedicated for AXE telephone exchanges, It is a propriatary language (i-programmer.info, 2010). 1980’s Atari ST BASIC – Atari commissioned MetaComCo to write a version of BASIC that...
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...Java Script: What is a Function? Abstract Java script functions are pieces of codes used to execute commands in a program whenever they are called to do so. Java script functions enable the reusability of commands, passing argument and value return in the program. This paper discusses functions as used in Java script as a programming language. Key words: Java script, functions, Python, built-in function, programmer function Java Script: What is a Function? Introduction In Java script, functions are defined as pieces of codes with specific duties that must be called up or referenced before they perform this function. Prior to their referencing, the codes sit in a dormant mode without any function. Functions can also be defined as collection of names or value pairs with hidden links to prototype object. One major use of functions in Java script is in repetitive tasks such as calculations, thus, they highly exhibit an element of reusability. Some programmers sometime call functions as constructors or arrays. Functions are used in defining arguments passed down to them by the programmer when the function is called (Resig, 2006). The result of the argument from the function depends on the kind of arguments that are given to the function. Functions can take more than one argument. Additionally, functions allow for augmenting object prototype to be available to other functions. Augmenting a function prototype makes this method to be available to...
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...1970’s Dartmouth Basic- was created by John Kemeny and Thomas Kurtz on May 1, 1964. Basic stands for Beginners All-purpose Symbolic Instruction Code . The aims of the BASIC system were: to develop a system and language that was friendly, easy to learn and use, to introduce computing as an adjunct to other courses, to operate an open access policy (i-programmer.info, 2010). Pascal- was created by Niklaus Wirth in 1972. He wanted a language suitable for teaching but for teaching computer science. It is best described as a simplified version of Algol. It was simplified both to make it easier to learn and to make it easier to compile (i-programmer.info, 2010). C- Was created by Ken Thompson iin the form of B and tweaked by Dennis Ritchie and renamed C in the 1970’s. It was the original code Unix was written in. Its function was for ease of use (i-programmer.info, 2010). Forth- was created by Charles H Moore in the 1970’s. The motivation behind this language was for both interactive execution of commands and the ability to compile sequences of commands for later execution (i-programmer.info, 2010). PLEX (Programming Language for EXchanges)- was created by Goran Hemdahl at Ericsson in the 1970’s. It is a special-purpose, pseudo-parallel and event-driven real-time programming language dedicated for AXE telephone exchanges, It is a propriatary language (i-programmer.info, 2010). 1980’s Atari ST BASIC – Atari commissioned MetaComCo to write a version of BASIC that...
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...Michael Campbell PT1420 Unit 1 Re Ass 1 10/10/2014 1. 1970s – The programming language was C, which was created by Dennis M. Richie. Before he created the C language there was the B language, which was created by Ken Thompson in 1969-70. The computers in that time wrote in assembly code and the user had to write many pages of code to do a task. When the B language was created, it made it possible to do a task in a few lines. Although the B language improved the systems it lacked use of structure and didn’t know data types. So in 1971-73 Dennis Richie wrote the C language in which he kept the B syntax but added data types and other changes that needed to be made. It was built for power and speed and developed for UNIX systems. Its also used for Windows, the MacOS and Linux. 2. 1980s – The programming language was Python, which was created by Guido van Rossum. It’s more of a scripting language and allows users to produce large quantities readable and functional code in a quick amount of time. Python teaches the user how to work with other languages, indentation, and modularity. It supports object – oriented, procedural, and functional program styles. C++ was also created and used many different types of computers. Program A was created by Arthur Whitney in 1988, and it focused on graphics, systems interfaces, utility support, and user community. 3. 1990s – The programming language was Ruby, which was created by computer scientist Yukihiro Matsumoto. It was created...
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...Contents Introduction 2 The Python Programming Language 2 History of Python 2 Features 4 Advantages and Disadvantages 5 Python vs. C 5 Summary 11 Bibliography 12 Introduction After comparing several programming languages, I have found many books and websites expressing how fast and efficient Python is. Further, many research papers describe the advantages of adding Python to computer sciences classes. For this reason I decided to study this language and compare it to one that I am familiar with, like the C language. This paper contains the history of Python, from its creation until now. It shows the features that make Python so popular, and the differences between Python and other languages. Most importantly, it explains the four pillars that are the foundation of the Python programming language, which are to provide quality, increase productivity, portability, and integration. Through this paper illustrate the advantages and disadvantages of Python, by showing that, although an interpretative language such as Python will never be as fast as a compiled language like C, it will be more efficient and useful in a variety of cases. The Python Programming Language History of Python Python (Software, 2011) is a relatively recent, object-oriented, interpreted scripting language created by Guido van Rossum at Stichting Mathematisch Centrum (CVI) in the Netherlands. According to Mark Pilgrim, Python is a successor of the ABC language...
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...Python Reference Manual Release 2.3.3 Guido van Rossum Fred L. Drake, Jr., editor December 19, 2003 PythonLabs Email: docs@python.org Copyright c 2001, 2002, 2003 Python Software Foundation. All rights reserved. Copyright c 2000 BeOpen.com. All rights reserved. Copyright c 1995-2000 Corporation for National Research Initiatives. All rights reserved. Copyright c 1991-1995 Stichting Mathematisch Centrum. All rights reserved. See the end of this document for complete license and permissions information. Abstract Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built in data structures, combined with dynamic typing and dynamic binding, make it very attractive for rapid application development, as well as for use as a scripting or glue language to connect existing components together. Python’s simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance. Python supports modules and packages, which encourages program modularity and code reuse. The Python interpreter and the extensive standard library are available in source or binary form without charge for all major platforms, and can be freely distributed. This reference manual describes the syntax and “core semantics” of the language. It is terse, but attempts to be exact and complete. The semantics of non-essential built-in object types and of the built-in functions and modules are described in the Python...
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...| Exploring Programming Language | Unit 1 Research Assignment 1 | | | 5/3/2014 | PT1420 | The five most popular programming languages in the 1970’s were: 1970: Pascal 1972: C 1972: Smalltalk 1972: Prolog 1973: SQL Pascal The Pascal programming language was developed by Niklaus Wirth. It was created in 1968 but it wasn’t published until 1970. It was developed to provide the features other programming languages didn’t offer at that time. His main reason for developing Pascal was efficiently implement and run, to allow for the development of structured and well organized programs, and to serve as a tool to teach the important concepts of computer programming. The program was named after a mathematician named Blaise Pascal. It was used as the primary language in the Apple Lisa and for the Mac in the early years of the computer. SQL SQL, which is short for, Structured Query Language, was designed by an IBM research center in 1974-1975. The Oracle Corporation introduced it as a commercial database system in 1979, the first time it was introduced. It has been a favorite query language for the use of database management systems for the microcomputer and mainframes, but is being supported by the PC database. C C was created at the Bell Laboratory in 1972 by Dennis Ritchie. It was created for the purpose in designing UNIX. Prolog Was created from 1971-1973 and was distributed in 1974-1975. It was created not as a programming language on purpose but...
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...Exploring Programming Languages 1970s * Pascal * Developed 1970 * originally developed by Niklaus Wirth, a member of the International Federation of Information Processing (IFIP) * principle objectives, allow for the development of well structured and well organized programs, and to serve as a vehicle for the teaching of the important concepts of computer programming * named after the mathematician Blaise Pascal * C * Developed 1972 * C was created by Dennis Ritchie at Bell Labs initially as a systems programming language for implementing UNIX * C++ was created by Bjarne Stroustrup at Bell Labs in the 1980s adding object orientation to C * Influenced ANSI C, Java * C/C++ has become the world’s most widely used systems programming language * ML * Developed1973 * Created by Robin Milner at University of Edinburgh * Initial focus: meta-language for program verification * One of the most widely used functional programming languages * Influenced Standard ML, Miranda, Haskell * SQL * Completed 1978 * First defined in 1970 by Dr. E.F. Codd, researcher for IBM, in a his Paper titled “A Relational Model of Data for Large Shared Data Banks “ * SQL would allow computer users to retrieve data from a variety of sources * Smalltalk * Released 1972 * first commercially-successful object-oriented language * Written and developed...
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...01100100 * 255= 11111111 2. Use what you’ve learned about the binary numbering system in this chapter to convert the following binary numbers to decimal? * 00001101=13 * 00001000=8 * 00101011=43 3. Look at the ASCII chart in Appendix A on CD that accompanies this book and determine the codes for each letter of your name? * 67 97 114 108 111 115 78 97 106 101 114 97 * C a r l o s N a j e r a 4. Use the web to research the history of the BASIC, C++, Java, and Python programming languages, and answer the following questions? * Who was the creator of each language? * When was each of these languages created? * Was there a specific motivation behind the creation of these languages? If so, what was it? * Basic was created by John George Kemeny. It was created on 1964. * C++ was created by Bjarne Stroustrup. It was created on 1979. * Java was created by Dr. James A. Gosling. It was created on 1995. * Python was created by Guido van Rossum. It was created on 1991. * The motivation behind the development of computer programming languages such as C ++, Basic, Java, and Python is that once written, a function may be used several times without rewriting it over and over. Programming languages can be used to develop programs that control the performance of a machine and/or to convey algorithms...
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...ANALYSIS OF PROGRAMMING LANGUAGE PARADIGMN BY GROUP 4 (M. Sc.) CSC 801 PROGRAMMING LANGUAGE PARADIGMNS TERM PAPER SUBMITTED TO THE DEPARTMENT OF COMPUTER SCIENCE, UNIVERSITY OF LAGOS, AKOKA June, 2015. ABSTRACT This is a survey on the programming languages paradigm: Imperative, Scripting, logic, Functional, object oriented and Markup. Our survey work involves a comparative study of these six programming languages with respect to the above programming paradigm using the following criteria: secure programming practices, web application development, OOP-based abstractions, reflection, Reusability, Portability, Reliability, Readability, Availability of compilers and tools, Familiarity, Expressiveness We study these languages in the context of the above mentioned criteria and the level of support they provide for each one of them. TABLE OF CONTENT 1. OVERVIEW OF PROGRAMMING LANGUAGE PARADIGMS 1.1 INTRODUCTION 1.2 CRITERIA OF LANGUAGE COMPARISON 2. IMPERATIVE LANGUAGES 2.1 Imperative Paradigm 2.1.2 Java as an Imperative Paradigm 2.1.3 Criteria 3. SCRIPTING LANGUAGES 3.1 Scripting Paradigm 3.2 Php as an Scripting Paradigm 3.3 Criteria 4. FUNCTIONAL LANGUAGES 4.1 Functional Paradigm 3.2 Php as an Scripting Paradigm 3.3 Criteria 5.1 LOGIC LANGUAGES 5.1.1 Readability 5.1.2 Ease of Learning 5.1.3 Ease of Maintenance 5.1.4 Extensibility 5.1.5 Pedagogy 5.1.6 Portability 6.1 OBJECT ORIENTED LANGUAGES (OOL) 6.1.1 Readability 6.1.2 Ease of Learning 6.1.3 Ease...
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...object-oriented language, and about the same time Prolog was designed in 1972 by Colmerauer, Roussel, and Kowalski, this was the first logic programming language. In 1973 Robin Milner built two polymorphic type systems (ML and Lisp) which were used in pioneering statically typed functional programming languages. Now going to the 80’s, Ada was created in 1983 by a team ran by Jean Ichbiah which was designed for built-in language support for explicit concurrency, offering tasks, synchronous message passing, protected objects, and non-determinism. Erlang was developed by Joe Armstrong in 1986 that supports hot swapping, so that code can be changed without stopping a system. In 1985 Eiffel was created as an ISO-standardized, object-oriented programming language designed by Bertrand Meyer. The program emphasizes declarative statements over procedural code and attempts to eliminate the need for bookkeeping instructions. TCL is a scripting language created by John Ousterhout in 1988 which is used for rapid prototyping, scripted applications, GUIs and testing. Perl was developed by Larry Wall in 1987 as a general-purpose Unix scripting language to make report processing easier. In the 90’s which is known as the age of the internet, Tim Berners-Lee created HTML in 1991 which allows images and objects to be embedded and can be used to create interactive forms in the web browser. Yukihiro Matsumoto created Ruby in 1993 as a more powerful scripting language than Perl...
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...Foulds Pi car Project 3 | AbstractThe purpose of this report is to give background information regarding IoT, Raspberry Pi, and Python as well as how these components were used to develop a system that would enable a user to control a RC car over a locally hosted website on any device with WiFi capability. The locally hosted website was created using HTML5 and CSS to format the layout of the website along with Javascript code to create and program buttons on the website. WebIOPi was used to convert the Javascript code to Python code to activate/deactivate the GPIO pins on the Raspberry Pi. Ruaan Klem 23653000 ITRW 324 | Pi car Project 3 | AbstractThe purpose of this report is to give background information regarding IoT, Raspberry Pi, and Python as well as how these components were used to develop a system that would enable a user to control a RC car over a locally hosted website on any device with WiFi capability. The locally hosted website was created using HTML5 and CSS to format the layout of the website along with Javascript code to create and program buttons on the website. WebIOPi was used to convert the Javascript code to Python code to activate/deactivate the GPIO pins on the Raspberry Pi. Ruaan Klem 23653000 ITRW 324 | Table of Contents 1. Introduction 2 2. The Internet of Things (IoT) 2 3. Raspberry Pi (RPi) 3 4. Python 4 5. System Development Methodology (SDM) 5 6. Development 6 7. Testing 11 8. Implementation 12 9. Experimentation 14 ...
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...The Python Papers Monograph 2:17 Proceedings of PyCon Asia-Pacific 2010 Experiences in Building Python Automation Framework for Verification and Data Collections Juki Wirawan Tantra jw.tantra@gmail.com Abstract This paper describes our experiences in building a Python automation framework. Specifically, the automation framework is used to support verification and data collection scripts. The scripts control various test equipments in addition to the device under test (DUT) to characterize a specific performance with a specific configuration or to evaluate the correctness of the behaviour of the DUT. The specific focus on this paper is on documenting our experiences in building an automation framework using Python: on the purposes, goals and the benefits, rather than on a tutorial of how to build such a framework. 1. Introduction I work in a growing IC design company that focuses on wireless solutions. The project described in this paper was developed when we were developing the fifth generation of our product. We were facing huge challenges for this project: our product's feature sets have grown so much that manual verification of the features require more than 2 months (and this would involve most of the engineering team doing manual tests). Recent economic situation prohibited any further investment, both for manpowers and tools. However, the project needs to be completed on time, or we would risked losing a significant potential business...
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