William Gray - Learn Python Programming: Write code from scratch in a clear & concise way, with a complete basic course. From beginners to intermediate, an hands-on project with examples, to follow step by step

LEARN PYTHON PROGRAMMING WRITE CODE FROM SCRATCH IN A CLEAR & CONCISE WAY, WITH A COMPLETE BASIC COURSE. FROM BEGINNERS TO INTERMEDIATE, AN HANDS-ON PROJECT WITH EXAMPLES, TO FOLLOW STEP BY STEP written by WILLIAM GRAY Congratulation on downloading this ebook and thank You for doing so. Please enjoy ! Copyright 2019 by WILLIAM GRAY All rights reserved No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, or by any information storage and retrieval system without the prior written permission of the publisher, except in the case of very brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law. TABLE OF CONTENTS CHAPTER 1 LEARN PYTHON PROGRAMMING INTRODUCTION Pthn i an xml f a high lvl lngug.Othr high level lngug u might hv hrd of r C++,PHP,Pl,C#,nd Jv. Pthn is n t lrn, wrful programming lngug. It h efficient high-lvl dt trutur nd a iml but effective rh t bjt-rintd programming.

Python w originally nivd b Vn Rum as a hbb language in Dmbr 1989. Al, th mjr and bkwrd-inmtibl vrin of the gnrl-ur rgrmming language w rld on 3rd Dmbr 2008. But Pthn is rntl rtd by a numbr of urvr the most ulr ding lngug f 2015. Th miv popularity indit Pthn' fftivn a mdrn programming lngug. At th m time, Pthn 3 is currently used by developers r the wrld for creating a vrit f desktop GUI, wb nd mobile applications. Pthn i a high-lvl, interpreted scripting lngug dvld in th lt 1980s by Guido van Rum at the Ntinl Research Intitut fr Mathematics and Computer Sin in the Netherlands.

Th initil version w published at the lt.ur newsgroup in 1991, nd version 1.0 was released in 1994. Pthn 2.0 w released in 2000, nd th 2.x vrin were th prevalent releases until December 2008. At tht tim, the development team made th diin t rl vrin 3.0, which ntind a fw relatively mll but ignifint changes tht wr not backward mtibl with th 2.x vrin. Pthn 2 nd 3 are vr imilr, nd some ftur f Pthn 3 hv bn bkrtd t Pthn 2. But in general, they remain not quite mtibl. Both Pthn 2 and 3 have ntinud t b mintind nd developed, with ridi rl udt fr both.

A f this writing, th mt rnt vrin vilbl r 2.7.15 nd 3.6.5. However, n ffiil End Of Lif dt f Jnur 1, 2020 h been tblihd for Python 2, after which tim it will n longer be mintind. If u r a nwmr t Pthn, it is rmmndd that u focus n Pthn 3, as thi tutorial will d. Pthn i still mintind by a core development tm at th Institute, nd Guid i till in hrg, hving been given th titl f BDFL (Bnvlnt Dittr Fr Lif) by th Python mmunit. The name Pthn, b the way, driv nt from the nk, but frm th Britih md troupe Mnt Pthn Flying Ciru, of whih Guid w, nd rumbl till i, a fn. It i mmn t find references t Mnt Pthn kth and movies ttrd throughout th Python dumnttin.

Thr r l a numbr f reasons why th hug ulrit nd market hr f Pthn will remain intt over a lngr period of tim. REASONS WH TH MIV PULRIT OF PYTHON WILL REMAIN INTT IN TH FUTURE Surt Multil Prgrmming Paradigms Gd developers ftn tk dvntg of different rgrmming paradigms t reduce th munt f tim nd ffrt r uird fr developing large nd complex applications. Like other mdrn rgrmming lngug, Pthn l supports a numbr f commonly ud programming tl including bjt-rintd, funtinl, rdurl nd imperative. It furthr features utmti memory management, lng with a dynamic t tm. So rgrmmr can u the lngug to fftut dvlmnt f large nd mlx ftwr litin. Doesn't Require Programmers to Writ Lengthy Cd Pthn is dignd with mlt fu n d rdbilit.

S the rgrmmr n rt rdbl d base tht n b ud b mmbr of ditributd tm. At th m time, th iml ntx f the rgrmming lngug nbl them to express nt without writing lngr lin of d. The feature makes it ir fr dvlr t large nd mlx litin within a stipulated munt f tim. As th can il ki rtin tasks required b thr programming lngug, it bm ir for developers t mintin and udt their litin. Prvid a Comprehensive Stndrd Librr Pthn further r over thr programming lngug due to its xtniv tndrd librr. Th programmers n u th libraries to mlih a variety of tk without writing longer lin f code.

Al, th tndrd library f Python i dignd with a lrg numbr of high use programming tk scripted into it. Thus, it helps rgrmmr to mlih tk lik tring rtin, development nd implementation of wb services, working with intrnt rtl, nd handling rting tm intrf. Effectuates Wb Alitin Dvlmnt Python i dignd a general-purpose rgrmming language, and lk built-in wb development features. But the web dvlr use a vrit f dd-n modules t writ mdrn wb litin in Python. While writing web litin in Pthn, programmers have tin t use vrl high-level wb frmwrk inluding Django, web2py, TurboGears, CubicWeb, nd Rhl. These wb frmwrk hl rgrmmr t rfrm a number of operations, withut writing dditinl d, lik dtb mniultin, URL routing, session storage and rtrivl, and utut template frmtting.

Th n furthr u th wb frameworks to rtt th web application frm cross-site scripting ttk, SQL injection, and cross-site request forgery. Filitt Dvlmnt of High Qulit GUI, Sintifi nd Numri Alitin Python i currently vilbl on mjr rting systems like Windw, Mac OS X, Linux nd UNIX. S the dkt GUI applications written in the rgrmming lngug can b dld on multil platforms. The rgrmmr n furthr speedup cross-platform desktop GUI litin dvlmnt uing frmwrk lik Kivy, wxPthn nd PyGtk. A number f reports hv highlightd tht Python i used widely fr dvlmnt f numeric nd scientific applications. While writing intifi nd numeric litin in Pthn, th dvlr n tk dvntg f tools lik Scipy, Pnd, IPthn, lng with th Pthn Imging Librr.

Simlifi Prtting f Alitin Nwd, h rgniztin wants t bt mtitin b dvling software with ditint nd innvtiv ftur. That i wh; rtting h become n intgrl part f mdrn ftwr development lifecycle. Bfr writing th d, dvlr hv t rt rtt of th litin t display it ftur and funtinlit t vriu tkhldr. A a iml nd fast rgrmming language, Python enables rgrmmr t develop the final tm withut utting any xtr time and effort. At th same tim, th dvlr l hv tin t trt developing the tm dirtl from th prototype iml b rftring the code. Cn l be ud for Mbil App Dvlmnt Frmwrk lik Kiv l mk Python ubl for developing mobile .

A a librr, Kiv n be ud for rting both dkt litin and mobile apps. But it llw developers t write the d n, and dl the same code n multiple ltfrm. Alng with intrfing with th hardware f th mbil device, Kivy l comes with built-in camera dtr, mdul to rndr nd l videos, nd mdul to t ur input through multi-touch nd gtur. Thu, rgrmmr n u Kiv t rt different vrin f the m litin for iOS, Andrid nd Windw Phone. Al, the framework d nt require dvlr t writ lngr lin f d whil creating Kiv rgrm. Aftr creating diffrnt vrin f th mbil , they n kg the app rtl fr individul app tr.

Th option mk it easier fr dvlr t rt diffrnt vrin f th mbil withut deploying rt dvlr. On Source Despite bing rtd th mt popular coding lngug of 2015, Pthn is till vilbl open ur and fr ftwr. Along with large IT companies, th trtu nd frln ftwr dvlr n l u the rgrmming language withut ing any f r rlt. Thu, Python mk it ir fr buin t rdu dvlmnt t ignifintl. At the m tim, th rgrmmr can l vil th itn of large nd active community to add ut-f-bx ftur t th ftwr litin. Th last major rl of Pthn took l in December 2008.

Pthn 3 was released a backward-incompatible version with most f the mjr features back rtd to Pthn 2.6 nd 2.7. Hwvr, the programming lngug is bing udtd by the community t rgulr intervals. Th mmunit rld Pthn 3.4.3 n 23rd Fbrur with vrl features and th. So the dvlr n lw u th mt rnt vrin f th Pthn rgrmming lngug to effectuate development f vriu ftwr litin. CHAPTER 2 HW T ACCEPT USER INPUTS AND DIL UTUT