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Download Learn Python the Hard Way, 3rd blogger.com Torrent – Kickass Torrents browse In fact, because Python supersedes , and because the latest Python is usually the best Python to fetch and use anyhow, in this book the term “Python ” generally refers to the language variations introduced by Python but that are present in the entire 3.X line 2/09/ · a smarter way to learn python pdf best way to learn python for non programmer how hard is it to learn python learn pandas python learn python 2 or 3 learn python basics learn 3/06/ · Learn Python The Hard Way. Welcome to the 1st Edition of Learn Python 3 the Hard Way which teaches Python 3. Apparently this is a new edition and not the 4th edition because Welcome to the 3rd Edition of Learn Python the hard way. You can visit the companion site to the book at blogger.com where you can purchase digital downloads and installing a complete Python environment organization and writing code Basic Mathematics Variables strings and text interacting with users Working with files Looping and logics Data ... read more
Follow it and you will succeed—just like the millions of beginners Zed has taught to date! You bring the discipline, commitment, and persistence; the author supplies everything else. Here is a list of features which state the awesomeness of this book. Now get the free Learn Python the Hard Way pdf and start reading the book in soft form. The pdf gives you the advantage of reading the book anywhere on a laptop or an android. Also, keep visiting our website for free pdfs and book reviews. Also Read: How to Get a Data Science Internship With No Experience.
Python is an essential superpower of data scientists and data engineers, so We decided to look for a book to train people on this programming language in a practical and funny way. Or any help and not even cut and copy codes. This book will save you a lot of time, it teaches you the basics of python and makes you rely on yourself completely. This course will reward you for every minute you put into it. It contains many exercises, simple and precise covering all topics. You will learn everything from terminal commands to basic object concepts and web development. You can create a text game and place it in a browser. Learn Python the Hard Way is the best book to start learning this programming language from those who have a little or nothing knowledge about programming to those skilled in some other programming language and want to start with python.
Yes, it will be a bit frustrating sometimes. And yes, you may find the lessons a bit dry at times. The book is useful for beginners in Python, is a great resource for learning. The book is very dynamic and provides hands-on learning. Such is the writing style that you would feel as if Zed Shaw himself is instructing you. All you have to do is DO NOT use any other source and accept Zed Shaw as your sole source of learning Python and before you know it you would be creating logic games. Learn Python The Hard Way even includes an appendix that walks you through the basics of how to use a text terminal. I definitely needed that, and the exercises included helped practice skills I use every day now. Learn Python The Hard Way also covers a surprising breadth of topics. Once you are done with this book you will be at ease creating elementary programs and gain the much-needed confidence and push required to delve further in this field.
Zed warns against some common but faulty programmer advice. I largely agree with him but I think his reasons for doing this bear some explaining. Search online for help. Learn how to change into a directory in the Terminal. Again search online. Use your editor to create a file in this directory. You will make the file, "Save" or "Save As Go back to Terminal using just the keyboard to switch windows. Look it up if you can't figure it out. Back in Terminal, see if you can list the directory to see your newly created file. Search online for how to list a directory. Your computer would be different, so see if you can figure out all the differences between what I did and what you should do. build ] on darwin Type "help", "copyright", "credits" or "license" for more information.
Use TextWrangler here to edit test. You do not need to be administrator to do this. Both options are available during setup. Run "powershell" from the start menu. Search for it and you can just hit enter to run it. If you run python and it's not there python is not recognized.. Make sure you install Python 2 not Python 3. You may be better off with ActiveState Python especially when you miss Administrative rights 4. Close powershell and then start it again to make sure python now runs. If it doesn't restart may be required. Make the file, "Save" or "Save As Warning If you missed it, sometimes you install Python on Windows and it doesn't configure the path correctly. You also have to either restart powershell or your whole computer to get it to really be fixed. based on Python 2. txt in mystuff org and we'll fix it. Linux Linux is a varied operating system with a bunch of different ways to install software. I'm assuming if you are running Linux then you know how to install packages so here are your instructions: 1.
Use your Linux package manager and install the gedit text editor. Make sure you can get to gedit easily by putting it in your window manager's menu. Run gedit so we can fix some stupid defaults it has. Open Preferences select the Editor tab. Change Tab width: to 4. Select make sure a check mark is in Insert spaces instead of tabs. Turn on "Automatic indentation" as well. Open the View tab turn on "Display line numbers". It could be called GNOME Terminal, Konsole, or xterm. If you run python and it's not there, install it. Typically you will make the file, "Save" or "Save As.. Back in Terminal see if you can list the directory to see your newly created file.
Use gedit here to edit test. Warnings For Beginners You are done with this exercise. This exercise might be hard for you depending on your familiarity with your computer. If it is difficult, take the time to read and study and get through it, because until you can do these very basic things you will find it difficult to get much programming done. If a programmer tells you to use vim or emacs, tell them, "No. All you need right now is an editor that lets you put text into a file. Professional programmers use these text editors so it's good enough for you starting out. A programmer may try to get you to install Python 3 and learn that. You should tell them, "When all of the python code on your computer is Python 3, then I'll try to learn it.
A programmer will eventually tell you to use Mac OSX or Linux. If the programmer likes fonts and typography, they'll tell you to get a Mac OSX computer. If they like control and have a huge beard, they'll tell you to install Linux. Again, use whatever computer you have right now that works. All you need is gedit, a Terminal, and python. Finally the purpose of this setup is so you can do three things very reliably while you work on the exercises: 1. Run the exercises you wrote. Fix them when they are broken. Anything else will only confuse you, so stick to the plan. If you haven't done that then do not go on. You will not have a good time. This is the only time I'll start an exercise with a warning that you should not skip or get ahead of yourself.
Type the following text into a single file named ex1. This is important as python works best with files ending in. print "Hello World! Notice I did not type the line numbers on the left Those are printed in the book so I can talk about specific lines by saying, "See line Notice I have the print at the beginning of the line and how it looks exactly the same as what I have above. Exactly means exactly, not kind of sort of the same. Every single character has to match for it to work. But, the colors are all different. Color doesn't matter, only the characters you type. Then in Terminal run the file by typing: python ex1. py If you did it right then you should see the same output I have below. If not, you have done something wrong. No, the computer is not wrong.
py but the important part is that you type the command, and you saw the output the same as I have. py", line 3 print "I like typing this. Even I make many of these mistakes. Let's look at this line-by-line. Here we ran our command in the terminal to run the ex1. py script. Python then tells us that the file ex1. py has an error on line 3. It then prints this line for us. Notice the missing " double-quote character? Finally, it prints out a "SyntaxError" and tells us something about what might be the error.
Usually these are very cryptic, but if you copy that text into a search engine, you will find someone else who's had that error and you can probably figure out how to fix it. Study Drills You will also have Study Drills. The Study Drills contains things you should try to do. If you can't, skip it and come back later. For this exercise, try these things: 1. Make your script print another line. Make your script print only one of the lines. Put a ' ' octothorpe character at the beginning of a line. What did it do? Try to find out what this character does.
From now on, I won't explain how each exercise works unless an exercise is different. Note An 'octothorpe' is also called a 'pound', 'hash', 'mesh', or any number of names. Pick the one that makes you chill out. You may run into some of these, so I've collected them into answers for you. Can I use IDLE? No, you should use Terminal on OSX and PowerShell on Windows, just like I have here. Save your file first as a. py file, such as ex1. Then you'll have color when you type. I get SyntaxError: invalid syntax when I run ex1. You are probably trying to run python, then trying to type python again. Close your terminal, start it again, and right away type only python ex1. I still can't get python in my PowerShell. py': [Errno 2] No such file or directory.
You need to be in the same directory as the file you created. Make sure you use the cd command to go there first. If you don't know what any of that means, then go through the Command Line Crash Course CLI-CC mentioned in question 1. How do I get my country's language characters into my file? You most likely took the code in my file above literally, and thought that print "Hello World! Your file has to be exactly like mine, and in the code above and all of the screenshots, I have print "Hello World! Make sure your code is like mine and it should work. They are used to tell you what something does in English, and they also are used to disable parts of your program if you need to remove them temporarily. Here's how you use comments in Python: A comment, this is so you can read your program later. Anything after the is ignored by python. print "I could have code like this.
It is important for you to understand that everything does not have to be literal. Your screen and program may visually look different, but what's important is the text you type into the file you're writing in your text editor. In fact, I could work with any text editor and the results would be the same. py I could have code like this. This will run. Again, I'm not going to show you screenshots of all the terminals possible. Study Drills 1. Find out if you were right about what the character does and make sure you know what it's called octothorpe or pound character.
Take your ex2. py file and review each line going backwards. Start at the last line, and check each word in reverse against what you should have typed. Did you find more mistakes? Fix them. Read what you typed above out loud, including saying each character by its name. Common Student Questions Are you sure is called the pound character? I call it the octothorpe and that is the only name that no country uses and that works in every country. Every country thinks their way to call this one character is both the most important way to do it, and also the only way it's done. To me this is simply arrogance and really, y'all should just chill out and focus on more important things like learning to code. Python still ignores that as code, but it's used as a kind of "hack" or workaround for problems with setting and detecting the format of a file.
You also find a similar kind of comment for editor settings. Why does the in print "Hi there. The in that code is inside a string, so it will be put into the string until the ending " character is hit. These pound characters are just considered characters and aren't considered comments. How do I comment out multiple lines? Put a in front of each one. I can't figure out how to type a character on my country's keyboard? Some countries use the Alt key and combinations of those to print characters foreign to their language. You'll have to look online in a search engine to see how to type it. Why do I have to read code backwards?
It's a trick to make your brain not attach meaning to each part of the code, and doing that makes you process each piece exactly. This catches errors and is a handy error checking technique. Do not worry, programmers lie frequently about being math geniuses when they really aren't. If they were math geniuses, they would be doing math, not writing ads and social network games to steal people's money. This exercise has lots of math symbols. Let's name them right away so you know what they are called. As you type this one in, say the names. When saying them feels boring you can stop saying them. After you type in the code for this exercise, go back and figure out what each of these does and complete the table.
How about some more. Is it greater? True Is it greater or equal? True Is it less or equal? False Study Drills 1. Above each line, use the to write a comment to yourself explaining what the line does. Remember in Exercise 0 when you started python? Start python this way again and using the above characters and what you know, use python as a calculator. Find something you need to calculate and write a new. py file that does it. Notice the math seems "wrong"? There are no fractions, only whole numbers. Find out why by researching what a "floating point" number is. Rewrite ex3. py to use floating point numbers so it's more accurate hint: Mostly that's just how the designers chose to use that symbol.
Another way to say it is, "X divided by Y with J remaining. What is the order of operations? In the US we use an acronym called PEMDAS which stands for Parentheses Exponents Multiplication Division Addition Subtraction. That's the order Python follows as well. It's not really rounding down, it's just dropping the fractional part after the decimal. Try doing 7. The next step is to learn about variables. In programming a variable is nothing more than a name for something so you can use the name rather than the something as you code. Programmers use these variable names to make their code read more like English, and because they have lousy memories. If they didn't use good names for things in their software, they'd get lost when they tried to read their code again. If you get stuck with this exercise, remember the tricks you have been taught so far of finding differences and focusing on details: 1. Write a comment above each line explaining to yourself what it does in English.
Read your. py file backwards. py file out loud saying even the characters. Find out how to type it if you do not already know. We use this character a lot to put an imaginary space between words in variable names. py There are cars available. There are only 30 drivers available. There will be 70 empty cars today. We can transport We have 90 to carpool today. We need to put about 3 in each car. Study Drills When I wrote this program the first time I had a mistake, and python told me about it like this: Traceback most recent call last : File "ex4. Make sure you use line numbers and explain why. Here's more extra credit: 1. I used 4. What happens if it's just 4? Remember that 4.
Find out what that means. Write comments above each of the variable assignments. Try running python as a calculator like you did before and use variable names to do your calculations. Popular variable names are also i, x, and j. You can, but it's bad form. You should add space around operators like this so that it's easier to read. How can I print without spaces between words in print? You will do more of this soon. What do you mean by "read the file backwards"? Very simple. Imagine you have a file with 16 lines of code in it. Start at line 16, and compare it to my file at line Then do it again for 15, and so on until you've read the whole file backwards. Why did you use 4. See the extra credit.
This time we'll use something called a "format string". Every time you put " double-quotes around a piece of text you have been making a string. A string is how you make something that your program might give to a human. You print them, save them to files, send them to web servers, all sorts of things. Strings are really handy, so in this exercise you will learn how to make strings that have variables embedded in them. You embed variables inside a string by using specialized format sequences and then putting the variables at the end with a special syntax that tells Python, "Hey, this is a format string, put these variables in there.
He's 74 inches tall. He's pounds heavy. Actually that's not too heavy. He's got Blue eyes and Brown hair. His teeth are usually White depending on the coffee. If I add 35, 74, and I get Try more format characters. It's like saying "print this no matter what". Search online for all of the Python format characters. Try to write some variables that convert the inches and pounds to centimeters and kilos. Do not just type in the measurements. Work out the math in Python. No, the 1 is not a valid variable name. They need to start with a character, so a1 would work, but 1 will not. You'll learn more about this as you continue, but they are "formatters". I don't get it, what is a "formatter"? The problem with teaching you programming is that to understand many of my descriptions you need to know how to do programming already. The way I solve this is I make you do something, and then I explain it later.
When you run into these kinds of questions, write them down and see if I explain it later. How can I round a floating point number? You can use the round function like this: round 1. I get this error TypeError: 'str' object is not callable. Why does this not make sense to me? Try making the numbers in this script your measurements. It's weird, but talking about yourself will make it seem more "real". In this exercise we create a bunch of variables with complex strings so you can see what they are for. First an explanation of strings.
A string is usually a bit of text you want to display to someone, or "export" out of the program you are writing. Python knows you want something to be a string when you put either " double-quotes or ' single-quotes around the text. You saw this many times with your use of print when you put the text you want to go to the string inside " or ' after the print. Then Python prints it. Strings may contain the format characters you have discovered so far. The only catch is that if you want multiple formats in your string to print multiple variables, you need to put them inside parenthesis separated by , commas. It's as if you were telling me to buy you a list of items from the store and you said, "I want milk, eggs, bread, and soup. We will now type in a whole bunch of strings, variables, formats, and print them. You will also practice using short abbreviated variable names.
Programmers love saving themselves time at your expense by using annoying cryptic variable names, so let's get you started being able to read and write them early on. py There are 10 types of people. Those who know binary and those who don't. I said: 'There are 10 types of people. I also said: 'Those who know binary and those who don't. Isn't that joke so funny?! False This is the left side of a string with a right side. Go through this program and write a comment above each line explaining it. Find all the places where a string is put inside a string.
There are four places. Are you sure there's only four places? How do you know? Maybe I like lying. Yes, and you'll learn more about these boolean values in exercise Why do you put ' single-quotes around some strings and not others? Mostly it's because of style, but I'll use a single-quote inside a string that has double-quotes. Look at line 10 to see how I'm doing that. I get the error TypeError: not all arguments converted during string formatting. You need to make sure that line of code is exactly the same. Go back and figure out what you did wrong. I won't be explaining much since it is just more of the same. The purpose is to build up your chops. See you in a few exercises, and do not skip!
Do not paste! print "Mary had a little lamb. py Mary had a little lamb. Its fleece was white as snow. And everywhere that Mary went. Cheese Burger Study Drills For these next few exercises, you will have the exact same extra credit. Go back through and write a comment on what each line does. Read each one backwards or out loud to find your errors. From now on, when you make mistakes write down on a piece of paper what kind of mistake you made. When you go to the next exercise, look at the last mistakes you made and try not to make them in this new one. Remember that everyone makes mistakes. Programmers are like magicians who like everyone to think they are perfect and never wrong, but it's all an act. They make mistakes all the time. Common Student Questions How does the "end" statement work?
These are not really an "end statement", but actually the names of variables that just happen to have the word "end" in them. Why are you using the variable named 'snow'? That's actually not a variable, it is just a string with the word snow in it. A variable wouldn't have the single-quotes around it. Is it normal to write an English comment for every line of code like you say to do in Study Drills 1? No, normally you write comments only to explain difficult to understand code, or why you did something. Why or your motivation is usually much more important, and then you try to write the code so that it explains how something is being done on its own. However, sometimes you just have to write such nasty code to solve a problem that it does need a comment on every line.
In this case though it's strictly for you to get better at translating from code to English. Can I use single-quotes or double-quotes to make a string or do they do different things? In Python either way to make a string is acceptable although typically you'll use single-quotes for any short strings like 'a' or 'snow'. Couldn't you just not use the comma , and turn the last two lines into one single-line print? Yes, you could very easily, but then it'd be longer than 80 characters which in Python is bad style. Do your checks of your work, write down your mistakes, try not to make them on the next exercise. Notice that the last line of output uses both single and double quotes for individual pieces. Why do you think that is? Why do I have to put quotes around "one" but not around True or False? That's because Python recognizes True and False as keywords representing the concept of true and false. You'll learn more about how these work in Exercise Python is going to print the strings in the most efficient way it can, not replicate exactly the way you wrote them.
Why doesn't this work in Python 3? Don't use Python 3. Use Python 2. Can I use IDLE to run this? No, you should learn to use the command line. It is essential to learning programming and is a good place to start if you want to learn about programming. IDLE will fail for you when you get further in the book. With the three double-quotes. We'll be able to type as much as we like. Even 4 lines if we want, or 5, or 6. py Here are the days: Mon Tue Wed Thu Fri Sat Sun Here are the months: Jan Feb Mar Apr May Jun Jul Aug There's something going on here. It's the "raw" format for debugging. I get an error when I put spaces between the three double-quotes? You have to type them like """ and not " " ", meaning with no spaces between each one. Is it bad that my errors are always spelling mistakes?
Most programming errors in the beginning and even later are simple spelling mistakes, typos, or getting simple things out of order. Learn Python The Hard Way Exercise What Was That? In Exercise 9 I threw you some new stuff, just to keep you on your toes. I showed you two ways to make a string that goes across multiple lines. What these two characters do is put a new line character into the string at that point. These two characters will print just one back-slash. We'll try a few of these sequences so you can see what I mean. Another important escape sequence is to escape a single-quote ' or double-quote ". Imagine you have a string that uses double-quotes and you want to put a double-quote in for the output. If you do this "I "understand" joe. You need a way to tell Python that the " inside the string isn't a real double-quote. To solve this problem you escape double-quotes and single-quotes so Python knows to include in the string.
We'll also play with these. What You Should See Look for the tab characters that you made. In this exercise the spacing is important to get right. py I'm tabbed in. I'm split on a line. You may not use many of these, but memorize their format and what they do anyway. Also try them out in some strings to see if you can make them work. Escape What it does. Memorize all the escape sequences by putting them on flash cards. Use ''' triple-single-quote instead. Can you see why you might use that instead of """? Combine escape sequences and format strings to create a more complex format. Common Student Questions I still haven't completely figured out the last exercise, should I continue? Yes, keep going and instead of stopping take notes listing things you don't understand for each exercise.
Periodically go through your notes and see if you can figure these things out after you've completed more exercises. Sometimes though you may need to go back a few exercises and go through them again. Think about why you would need this. They are different characters that do very different things. I don't get Study Drills 3. What do you mean by "combine" escapes and formats? One of the things I try to get you to understand is that each of these exercises can be combined to solve problems. Take what you know about format sequences and write some new code that uses those and the escapes from this exercise. What's better, ''' or """? It's entirely based on style. what feels best or what everyone else is doing. I have got you doing a lot of printing so that you get used to typing simple things, but those simple things are fairly boring.
What we want to do now is get data into your programs. This is a little tricky because you have learn to do two things that may not make sense right away, but trust me and do it anyway. It will make sense in a few exercises. Most of what software does is the following: 1. Take some kind of input from a person. Change it. Print out something to show how it changed. So far you have only been printing, but you haven't been able to get any input from a person, or change it. You may not even know what "input" means, so rather than talk about it, let's have you do some and see if you get it.
Next exercise we'll do more to explain it. print "How old are you? This is so that print doesn't end the line with a newline and go to the next line. py How old are you? Can you find other ways to use it? Try some of the samples you find. Write another "form" like this to ask some other questions. See how the single-quote needs to be escaped because otherwise it would end the string? Common Student Questions How do I get a number from someone so I can do math? You don't put your height in there, you type it directly into your terminal.
First thing is, go back and make the code exactly like mine. Next, run the script, and when it pauses, type your height in at your keyboard. That's all there is to it. Why do you have a newline on line 8 instead of putting it on one line? That's so that the line is less than 80 characters long, which is a style that Python programmers like. You could put it on one line if you like. The input function will try to convert things you enter as if they were Python code, but it has security problems so you should avoid it. When my strings print out there's a u in front of them, as in u'35'. That's how Python tells you that the string is unicode.
This is how you ask someone a question and get their answer. Read what it says. Get out of pydoc by typing q to quit. Go look online for what the pydoc command does. Use pydoc to also read about open, file, os, and sys. It's alright if you do not understand those, just read through and take notes about interesting things. You aren't running pydoc from the command line, you're probably running it from inside python. Exit out of python first. Why does my pydoc not pause like yours does? Sometimes if the help document is short enough to fit on one screen then pydoc will just print it. When I run pydoc I get more is not recognized as an internal. Some versions of Windows do not have that command, which means pydoc is broken for you.
You can skip this extra credit and just search online for Python documentation when you need it. I will not answer this question again so you must memorize this fact. This is the 1 thing people ask repeatedly, and asking the same question over and over means you aren't taking the time to memorize what you should. Stop now, and finally memorize this fact. Why can't I do print "How old are you? You'd think that'd work, but Python doesn't recognize that as valid. The only answer I can really give is, you just can't. py files. You know how you type python ex py to run the ex py file? Well the ex py part of the command is called an "argument". What we'll do now is write a script that also accepts arguments. This is how you add features to your script from the Python feature set. Rather than give you all the features at once, Python asks you to say what you plan to use. This keeps your programs small, but it also acts as documentation for other programmers who read your code later. The argv is the "argument variable", a very standard name in programming, that you will find used in many other languages.
This variable holds the arguments you pass to your Python script when you run it. In the exercises you will get to play with this more and see what happens. Line 3 "unpacks" argv so that, rather than holding all the arguments, it gets assigned to four variables you can work with: script, first, second, and third. This may look strange, but "unpack" is probably the best word to describe what it does. It just says, "Take whatever is in argv, unpack it, and assign it to all of these variables on the left in order. Hold Up! Features Have Another Name I call them "features" here these little things you import to make your Python program do more but nobody else calls them features. I just used that name because I needed to trick you into learning what they are without jargon. From now on we will be calling these "features" that we import modules.
I'll say things like, "You want to import the sys module. py first 2nd 3rd The script is called: ex py stuff things that The script is called: ex py apple orange grapefruit The script is called: ex py Your first variable is: apple Your second variable is: orange Your third variable is: grapefruit You can actually replace "first", "2nd", and "3rd" with any three things you want. py first 2nd Traceback most recent call last : File "ex Notice when I run it I give it first 2nd, which caused it to give an error about "need more than 3 values to unpack" telling you that you didn't give it enough parameters. Try giving fewer than three arguments to your script. See that error you get? See if you can explain it. Write a script that has fewer arguments and one that has more. Make sure you give the unpacked variables good names. Remember that modules give you features. Remember this because we'll need it later. Common Student Questions When I run it I get ValueError: need more than 1 value to unpack.
Remember that an important skill is paying attention to details. If you look at the What You Should See section you see that I run the script with parameters on the command line. You should replicate how I ran it exactly. The different has to do with where the user is required to give input. If they give your script inputs on the command line, then you use argv. Are the command line arguments strings? Yes, they come in as strings, even if you typed numbers on the command line. How do you use the command line? Don't over think it. From that start playing with more ways to use both in the same script. Because that's backwards to how it should work. Do it the way I do it and it'll work. You will need this for the next exercise where we learn to read and write files. This is similar to a game like Zork or Adventure. Not sure where that is. Now if we want to make the prompt something else, we just change it in this one spot and rerun the script.
Very handy. What You Should See When you run this, remember that you have to give the script your name for the argv arguments. py zed Hi zed, I'm the ex I'd like to ask you a few questions. Do you like me zed? You live in 'San Francisco'. And you have a 'Tandy ' computer. Find out what Zork and Adventure were. Try to find a copy and play it. Change the prompt variable to something else entirely. Add another argument and use it in your script. Common Student Questions I get SyntaxError: invalid syntax when I run this script. Again, you have to run it right on the command line, not inside python. If you type python, and then try to type python ex py Zed it will fail because you are running python inside python. Close your window and then just type python ex py Zed. I don't understand what you mean by changing the prompt? Change that to have a different value. You know this, it's just a string and you've done 13 exerises making them, so take the time to figure it out.
I get the error ValueError: need more than 1 value to unpack. Remember when I said you need to look at the WYSS What You Should See section and replicate what I did? You need to do the same thing here and focus on how I type the command in, and why I have a command line argument. Can I use double-quotes for the prompt variable? You totally can. Go ahead and try that. You have a Tandy computer? I did when I was little. I get NameError: name 'prompt' is not defined when I run it.
edu no longer supports Internet Explorer. To browse Academia. edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. Isromi Janwar. Andika Maulana. Diego Prada. Ray Díaz. I am not the author. The official author is Hans Petter Langtangen. Lichen Zuo. NR14DY MUHAMMAD. Trung Hiếu Bùi. Jose E Vergara L. Log in with Facebook Log in with Google. Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account? Click here to sign up. Download Free PDF. Learn Python The Hard Way, 3rd Edition. Pham Hanh. Continue Reading Download Free PDF.
Related Papers. Poss upi press - python dasar - Download Free PDF View PDF. Buku Serial Open Source Belajar Pemrograman Python Dasar Penulis : Ridwan Fadjar Septian Editor : Andri Priyanto Desain Sampul : Herdi Agustina. Series Editors. Think Python How to Think Like a Computer Scientist. Poss upi press python dasar. LauraaTateosian Python For ArcGIS. Texts in Computational Science and Engineering 6 Editors. Learn Python The Hard Way, 3rd Edition Welcome to the 3rd Edition of Learn Python the hard way. Table Of Contents The Hard Way Is Easier Exercise 0: The Setup Exercise 1: A Good First Program Exercise 2: Comments And Pound Characters Exercise 3: Numbers And Math Exercise 4: Variables And Names Exercise 5: More Variables And Printing Exercise 6: Strings And Text Exercise 7: More Printing Exercise 8: Printing, Printing Exercise 9: Printing, Printing, Printing Exercise What Was That?
Exercise Asking Questions Exercise Prompting People Exercise Parameters, Unpacking, Variables Exercise Prompting And Passing Exercise Reading Files Exercise Reading And Writing Files Exercise More Files Exercise Names, Variables, Code, Functions Exercise Functions And Variables Exercise Functions And Files Exercise Functions Can Return Something Exercise What Do You Know So Far? Exercise Read Some Code Exercise More Practice Exercise Even More Practice Exercise Congratulations, Take A Test! Composition Exercise You Make A Game Exercise A Project Skeleton Exercise Automated Testing Exercise Advanced User Input Exercise Making Sentences Exercise Your First Website Exercise Getting Input From A Browser Exercise The Start Of Your Web Game Advice From An Old Programmer Next Steps Common Student Questions How long does this course take?
You should take as long as it takes to get through it, but focus on doing work every day. Some people take about 3 months, others 6 months, and some only a week. I can do it in about 4 hours or less if I hurry and don't do the extra credits. What kind of computer do I need? You can do it on most any computer. It works on Windows, Mac OSX, and Linux with instructions for all three in the first exercise. The title says it's the hard way to learn to write code; but it's actually not. It's only the "hard" way because it's the way people used to teach things using instruction. This book instructs you in Python by slowly building and establishing skills through techniques like practice and memorization, then applying them to increasingly difficult problems.
With the help of this book, you will do the incredibly simple things that all programmers need to do to learn a language: 1. Go through each exercise. Type in each sample exactly. Make it run. That's it. This will be very difficult at first, but stick with it. If you go through this book, and do each exercise for one or two hours a night, you will have a good foundation for moving onto another book. You might not really learn "programming" from this book, but you will learn the foundation skills you need to start learning the language. This book's job is to teach you the three most essential skills that a beginning programmer needs to know: Reading and Writing, Attention to Detail, Spotting Differences.
Reading and Writing It seems stupidly obvious, but, if you have a problem typing, you will have a problem learning to code. Especially if you have a problem typing the fairly odd characters in source code. Without this simple skill you will be unable to learn even the most basic things about how software works. Typing the code samples and getting them to run will help you learn the names of the symbols, get familiar with typing them, and get you reading the language. Attention to Detail The one skill that separates bad programmers from good programmers is attention to detail. In fact, it's what separates the good from the bad in any profession.
Without paying attention to the tiniest details of your work, you will miss key elements of what you create. In programming, this is how you end up with bugs and difficult-to-use systems. By going through this book, and copying each example exactly, you will be training your brain to focus on the details of what you are doing, as you are doing it. An experienced programmer can take two pieces of code that are slightly different and immediately start pointing out the differences. Programmers have invented tools to make this even easier, but we won't be using any of these. You first have to train your brain the hard way, then you can use the tools. While you do these exercises, typing each one in, you will be making mistakes. It's inevitable; even seasoned programmers would make a few. Your job is to compare what you have written to what's required, and fix all the differences.
By doing so, you will train yourself to notice mistakes, bugs, and other problems. Do Not Copy-Paste You must type each of these exercises in, manually. If you copy and paste, you might as well just not even do them. The point of these exercises is to train your hands, your brain, and your mind in how to read, write, and see code. If you copy-paste, you are cheating yourself out of the effectiveness of the lessons. A Note On Practice And Persistence While you are studying programming, I'm studying how to play guitar. I practice it every day for at least 2 hours a day. I play scales, chords, and arpeggios for an hour at least and then learn music theory, ear training, songs and anything else I can. Some days I study guitar and music for 8 hours because I feel like it and it's fun. To me repetitive practice is natural and just how to learn something. I know that to get good at anything you have to practice every day, even if I suck that day which is often or it's difficult.
Keep trying and eventually it'll be easier and fun. As you study this book, and continue with programming, remember that anything worth doing is difficult at first. Maybe you are the kind of person who is afraid of failure so you give up at the first sign of difficulty. Maybe you never learned self-discipline so you can't do anything that's "boring". Maybe you were told that you are "gifted" so you never attempt anything that might make you seem stupid or not a prodigy. Whatever your reason for wanting to quit, keep at it. Force yourself. If you run into an Extra Credit you can't do, or a lesson you just do not understand, then skip it and come back to it later.
Just keep going because with programming there's this very odd thing that happens. At first, you will not understand anything. It'll be weird, just like with learning any human language. You will struggle with words, and not know what symbols are what, and it'll all be very confusing. Then one day BANG your brain will snap and you will suddenly "get it". If you keep doing the exercises and keep trying to understand them, you will get it. You might not be a master coder, but you will at least understand how programming works. You will hit the first confusing thing which is everything at first and then stop. If you keep trying, keep typing it in, trying to understand it and reading about it, you will eventually get it.
But, if you go through this whole book, and you still do not understand how to code, at least you gave it a shot. You can say you tried your best and a little more and it didn't work out, but at least you tried.
Learn Python The Hard Way, 3rd Edition,Latest commit
Download Free PDF. Download Free PDF. Learn Python the Hard Way, 3rd Edition. Learn Python the Hard Way, 3rd Edition. Simo ahmed. Continue Reading. Download Free PDF. 3/06/ · Learn Python The Hard Way. Welcome to the 1st Edition of Learn Python 3 the Hard Way which teaches Python 3. Apparently this is a new edition and not the 4th edition because installing a complete Python environment organization and writing code Basic Mathematics Variables strings and text interacting with users Working with files Looping and logics Data 2/09/ · a smarter way to learn python pdf best way to learn python for non programmer how hard is it to learn python learn pandas python learn python 2 or 3 learn python basics learn Download Learn Python the Hard Way, 3rd blogger.com Torrent – Kickass Torrents browse In fact, because Python supersedes , and because the latest Python is usually the best Python to fetch and use anyhow, in this book the term “Python ” generally refers to the language variations introduced by Python but that are present in the entire 3.X line Welcome to the 3rd Edition of Learn Python the hard way. You can visit the companion site to the book at blogger.com where you can purchase digital downloads and ... read more
Remember that an important skill is paying attention to details. Select make sure a check mark is in Insert spaces instead of tabs. close That's a large file, probably the largest you have typed in. Is there a limit to the number of arguments a function can have? Some days I study guitar and music for 8 hours because I feel like it and it's fun.
Notice you do not need to put the. com, or gitorious. py script. If you do want that, hit RETURN. Play with it. P98S53 Typing ex
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