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This makes using arguments much easier, as you can define input types that get checked automatically. It also produces nice error messages and with --help it See also How to read/process command line arguments? for usage of argparse module to create custom flags such as -f <filename>.
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Oct 14, 2020 · The fifth way to check if the input string is an integer or not in Python is by using the combination of any() and map() function in python. Here in the above example, we have taken input as a string which is ‘sdsd’. And after that with the help of any(), map(), and isdigit() function, we have python check if the string is an integer.
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lambda ¶. In the first map example above, we created a function, called square, so that map would have a function to apply to the sequence. This is a common occurrence, so Python provides the ability to create a simple (no statements allowed internally) anonymous inline function using a so-called lambda form.
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You want to do more than that - you want to take some input, manipulate it and get something out of it. We can achieve this in Python using constants and variables, and we'll learn some other concepts as well in this chapter. Comments. Comments are any text to the right of the # symbol and is mainly useful as notes for the reader of the program.
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Mar 12, 2018 · Let’s take the --input argument as an example. On Line 7 we instantiate the ArgumentParser object as ap . Then on Lines 8 and 9 we add our --input argument. We must specify shorthand and longhand versions (-i and --input ) where either flag could be used in the command line. This is a required argument as is noted by required=True .
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Python Variables; Python Strings ; Use Python's input() function to accept user input. You can then use this input within your program. You can write Python programs that accept user input. You could ask the user their name, their age, or pretty much anything. The user's input can then be used within your program in any number of ways.
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You want to do more than that - you want to take some input, manipulate it and get something out of it. We can achieve this in Python using constants and variables, and we'll learn some other concepts as well in this chapter. Comments. Comments are any text to the right of the # symbol and is mainly useful as notes for the reader of the program.
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The following Python program reading a text file and splitting it into single words in python example with open("my_file.txt", "r") as my_file: for line in my_file: str = line.split() print(str)
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* Added These Lines Into /etc/hosts. 127.0.0.1 Www.sublimetext.com 127.0.0.1 License.sublimehq.com. Used The License Key —– BEGIN The DHT22 Will Have Three Pins ...
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Using wc with no options will get you the counts of bytes, lines, and words (-c, -l and -w option). >wc file1.txt 1065 5343 40559 file1.txt Count words, characters, and lines in multiple files . wc command can take multiple files at the same time and give you the number of words, characters, and lines. To get counts from multiple files, you ...

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Column pointer controls indicate the column in which an input value starts. Use line pointer controls within the INPUT statement to move to the next input record or to define the number of input records per observation. Line pointer controls specify which input record to read. Two or more input in one line : Python tutorial 21cource code - https://www.dropbox.com/s/epzqggx83v059qs/two_inputs.py?dl=0 How to check the data type of each variable in Python? If you are taking a number as an input, you can check if the number is int, float or long. Write a python program to check if a variable is an integer or a string using isinstance()?


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Tagged with tutorial, python, testing, beginners. Contest programming problem solutions are usually tested automatically. So the input is just a set of strings with predefined format that fed into standard And it doesn't take a lot of effort to make a mistake here. In fact, I already made one in the code above.* Added These Lines Into /etc/hosts. 127.0.0.1 Www.sublimetext.com 127.0.0.1 License.sublimehq.com. Used The License Key —– BEGIN The DHT22 Will Have Three Pins ... User Input. Python allows for user input. That means we are able to ask the user for input. The method is a bit different in Python 3.6 than Python 2.7. Python 3.6 uses the input() method. Python 2.7 uses the raw_input() method. The following example asks for the username, and when you entered the username, it gets printed on the screen:

  1. Notice the technique used to place the code on two lines. In some cases, your code will need to appear on multiple lines to make it more readable. Choose Run→Run Module. You see a Python Shell window open. Notice especially that the searches returned different indexes based on where they started in the string.
  2. There are two Python statement types to do that: the simpler for loops, which we take up shortly, and while We will see there are good reasons to start from 0 in Python. One important property of The block of lines is repeated once for each element of the sequence, so in this example the two lines in...Offered by University of Michigan. This course aims to teach everyone the basics of programming computers using Python. We cover the basics of how one constructs a program from a series of simple instructions in Python. The course has no pre-requisites and avoids all but the simplest mathematics. Anyone with moderate computer experience should be able to master the materials in this course ...
  3. The following is an example of using head with two input files: head aardvark armadillo. If it is desired to obtain some number of lines other than the default ten, the -n option can be used followed by an integer indicating the number of lines desired. For example, the above example could be modified to display the first 15 lines from each file:
  4. We use the built-in function to take the input. input() returns a string, so we convert it into number using the float() function. We add the two numbers using the + arithmetic operator. Changing this operator, we can subtract (-), multiply (*), divide (/), floor divide (//) or find the remainder (%) of two numbers. Jun 01, 2019 · Python tutorial to print the keys and values of a dictionary. This tutorial will show you different ways to print the key value pairs of a given dictionary. We will learn by using a loop, using items() method and by iterating through all keys.
  5. In python, apart from index position, subscript operator, i.e. [] can accept a range too i.e. string[ start_index_pos: end_index_pos: step_size] string [ start_index_pos: end_index_pos: step_size] string [ start_index_pos: end_index_pos: step_size] It returns a slice the string, i.e. a substring. The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order. It is possible to crash the Python interpreter with a sufficiently large/complex string when compiling to an AST object due to stack depth limitations in Python's AST...
  6. I already use it intuitively writing Python. But I think it does not go well with the PEP8 style guide, when it comes to breaking function parameters into multiple lines. Right now PEP8 suggests some...Offered by University of Michigan. This course aims to teach everyone the basics of programming computers using Python. We cover the basics of how one constructs a program from a series of simple instructions in Python. The course has no pre-requisites and avoids all but the simplest mathematics. Anyone with moderate computer experience should be able to master the materials in this course ... Learn how to take input from a user and system In Python. Accept an integer, float, character, and string input from a user. In Python, there are various ways for reading input from the user from the command line...
  7. To create a user-friend GUI application, you should have basic knowledge of Python programming language. Installing Tkinter in Windows. Tkinter comes with the Python installer. We just need to install Python from www.python.org, and it comes along with the Python. We don't need to install it separately.
  8. Jan 05, 2020 · Make sure the typing cursor is in the Shell window, at the end of this line. Then follow the instruction (and press Enter). After you type your response, you can see that the program has taken in the line you typed. Taking multiple inputs from user in Python. Python | Output using print() function. How to print without newline in Python? Refer to the article Taking list as input from the user for more information. Attention geek! Strengthen your foundations with the Python Programming Foundation...
  9. Using wc with no options will get you the counts of bytes, lines, and words (-c, -l and -w option). >wc file1.txt 1065 5343 40559 file1.txt Count words, characters, and lines in multiple files . wc command can take multiple files at the same time and give you the number of words, characters, and lines. To get counts from multiple files, you ... Python provides for six sequence (or sequential) data types: strings byte sequences byte arrays lists tuples range objects. Generally speaking a list is a collection of objects. To be more precise: A list in Python is an ordered group of items or elements. It's important to notice that these list elements don't...
  10. The following Python program reading a text file and splitting it into single words in python example with open("my_file.txt", "r") as my_file: for line in my_file: str = line.split() print(str) Scatter (x = x, y = y + 5, name = "spline", text = ["tweak line smoothness<br>with 'smoothing' in line object"], hoverinfo = 'text+name', line_shape = 'spline')) fig. add_trace (go. Scatter ( x = x , y = y + 10 , name = "vhv" , line_shape = 'vhv' )) fig . add_trace ( go . There are two Python statement types to do that: the simpler for loops, which we take up shortly, and while We will see there are good reasons to start from 0 in Python. One important property of The block of lines is repeated once for each element of the sequence, so in this example the two lines in...Exercise 5: Take the following Python code that stores a string: str = 'X-DSPAM-Confidence: 0.8475 ' Use find and string slicing to extract the portion of the string after the colon character and then use the float function to convert the extracted string into a floating point number.
  11. To get multi-line input from the user you can go like: no_of_lines = 5 lines = "" for i in xrange (no_of_lines): lines+=input()+" " print (lines) Or. lines = [] while True: line = input() if line: lines.append (line) else: break text = ' '.join (lines) share. Share a link to this answer. Copy link.
  12. Looping over both elements and indices can be achieved either by the old idiom or by using the new zip built-in function [2]: for i in range (len (sequence)): e = sequence [i] # work with index i and element e. or: for i, e in zip (range (len (sequence)), sequence): # work with index i and element e. Python Tutorial to learn Python programming with examplesComplete Python Tutorial for Beginners Playlist : https://www.youtube.com/watch?v=hEgO047GxaQ&t=0s&i...

 

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Python How To. Remove List Duplicates Reverse a String Add Two Numbers. Strings in python are surrounded by either single quotation marks, or double quotation marks. Note: in the result, the line breaks are inserted at the same position as in the code.Convert any Python 2 script into a single line. No newlines allowed. No semicolons, either. No silly file I/O tricks, or eval or exec. Just good, old-fashioned lambda. In Python, you can display a list of strings using one-line commands. For that, the method join is used; this method has one parameter: a list of strings. It returns the string obtained by concatenation of the elements given, and the separator is inserted between the elements of the list; this separator is equal to the string on which is the method applied. Sep 18, 2009 · Answer: In this article, let us review very quickly how to write a basic Hello World python program and execute *.py program on Linux or Unix OS. 1. Write a Hello World Python Program. Create helloworld.py program as shown below. $ vim helloworld.py #!/usr/bin/python # Hello world python program print "Hello World!"; 2. Apr 25, 2018 · These steps can also be completed from the command line via the boto3 library, but we won't cover that in this post. If using Python 2 is still your jam rather than Python 3, take a look at this other post which shows how to execute Python 2.7 code on AWS Lambda. First Steps with AWS Lambda A FASTQ file normally uses four lines per sequence. Line 1 begins with a '@' character and is followed by a sequence identifier and an optional description (like a FASTA title line). Line 2 is the raw sequence letters. Line 3 begins with a '+' character and is optionally followed by the same sequence identifier (and any description) again. DigitalOcean eBook: How To Code in Python. To further understand how the return statement works, we can comment out the return statement in the program Outside of the function, we set the variable sums equal to the result of the function taking in 1, 2, and 3 as we did above.Mar 26, 2018 · The problem is that, by default, subprocess.check_output returns a "bytestring", similar to a Python 2 string, in that it contains a sequence of bytes, rather than a sequence of Unicode characters. The issue here is that when you print a bytestring, Python doesn't actually go to a new line when it sees . Python Input and Output. With this topic, we begin our series of Python Practice tutorials. A small description on how to install Python and get the interpreter running is given here. Say you want to print a specific string (a sequence of characters such as letters, punctuation marks, numbers, and...

Base object for fitting to a sequence of data, such as a dataset. Every Sequence must implement the __getitem__ and the __len__ methods. If you want to modify your dataset between epochs you may implement on_epoch_end. The method __getitem__ should return a complete batch. Notes: Sequence are a safer way to do multiprocessing. This structure ... In this Python Sequence Tutorial, we will discuss 6 types of Sequence: String, list, tuples, Byte sequences, byte array, and range object. So, what is a Python sequence, and how does it differ from a Python collection? A sequence is a group of items with a deterministic ordering.

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C:\AI\python\sample.txt In Chapter 1 we noted that the backslash character ‘\’ has special meaning in Python strings—namely that the next character should be interpreted in some special way. In order to get actual backslashes in a Python string we need to put a backslash before each of them. For example: filename = 'C:\\AI\\python\\sample ... Iterate over lines from multiple input streams in Python. Taking part from array of numbers by percent JavaScript. In this tutorial, we are going to learn how to take input from the console in Python. The interactive shell in Python is treated as a console.To take input in Python, we use input() function, it asks for an input from the user and returns a string value, no matter what value you have entered, all There is no such method, that can be used to take input as a float directly - but input string can be converted into a float by using float() function which...

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Two or more input in one line : Python tutorial 21cource code - https://www.dropbox.com/s/epzqggx83v059qs/two_inputs.py?dl=0 The following Python program reading a text file and splitting it into single words in python example with open("my_file.txt", "r") as my_file: for line in my_file: str = line.split() print(str) How many sequence-types have we discussed thus far? Which of these produce objects that are Reading Comprehension: Indexing and Slicing Sequences. In Python, a sequence is any ordered You saw, in the required reading, that Python's lists and strings are both examples of sequences.

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Basic Input/Output. The example programs of the previous sections provided little interaction with the user, if any at all. C++ uses a convenient abstraction called streams to perform input and output operations in sequential media such as the screen, the keyboard or a file.The most basic form of user input is typed text at the command line. Python has a built in function for prompting the user with a message and then listening for the answer. This function is the input() function. The input function takes one argument when you call it. This argument is the text prompt to display to the user. May 29, 2020 · Here the sequence may be a string or list or tuple or set or dictionary or range. Since range data type generates a sequence of numbers, let us take the range in the place of sequence in the above syntax and discuss a few examples to understand the python for loop range concept. grep(*matches) returns a generator function, which can be called with any iterator or sequence, such as a list or a file object. The matches are callables which take an item as input and return a True value if that item is a match. If at least one of the matches returns a True value for an item, the item is included in the generator output. Sep 18, 2009 · Answer: In this article, let us review very quickly how to write a basic Hello World python program and execute *.py program on Linux or Unix OS. 1. Write a Hello World Python Program. Create helloworld.py program as shown below. $ vim helloworld.py #!/usr/bin/python # Hello world python program print "Hello World!"; 2. Oct 24, 2017 · Input: a=Switcher() Input: a.numbers_to_months(1) Output: January Advantage of Python’s approach. Since you can alter Python dictionaries during runtime (add, remove or update key-value pairs), you can easily change your very switch statement on the fly. Here’s an example, Jul 30, 2020 · My Solution: Python 3. Using While Loop. n = int ( input ()) #input () function takes input as string type #int () converts it to integer type fact = 1 i = 1 while i <= n : fact = fact * i ; i = i + 1 print ( fact) Using For Loop. n = int ( input ()) #input () function takes input as string type #int () converts it to integer type fact = 1 for i in range ( 1, n+1 ): fact = fact * i print ( fact) Jul 06, 2020 · #!/usr/bin/env python # copying.py import copy w = ["Python", "Ruby", "Perl"] c1 = w[:] c2 = list(w) c3 = copy.copy(w) c4 = copy.deepcopy(w) c5 = [e for e in w] c6 = [] for e in w: c6.append(e) c7 = [] c7.extend(w) print(c1, c2, c3, c4, c5, c6, c7) The Python community has developed a Style Guide for Python Code, usually referred to simply as “PEP 8”. The Python Enhancement Proposals, or PEPs, are part of the process the Python community uses to discuss and adopt changes to the language. PEP 8 recommends the use of 4 spaces per indentation level. Dec 14, 2017 · You probably guessed it, we will use Shakespear as input data! In particular, we will use the following file: Hamlet. First, we use NLTK to extract words and then we convert the words to. Character RNN implementation in Python and Tensorflow. I will share the full code I used for the implementation. I will leave out the details. This is how input-related errors can be handled in Python. You can combine this code with another construct, like a while loop to ensure that the code is repeatedly run until you receive the valid integer input that your program requires. A Complete Example.Also note that zip in Python 2 returns a list but zip in Python 3 returns a lazy iterable. In Python 2, itertools.izip is equivalent to the newer Python 3 zip function. Looping cheat sheet. Here’s a very short looping cheat sheet that might help you remember the preferred construct for each of these three looping scenarios. Two or more input in one line : Python tutorial 21cource code - https://www.dropbox.com/s/epzqggx83v059qs/two_inputs.py?dl=0 How to count non-DNA bases in a sequence using Python. I noticed recently that two particular questions are popping up quite regularly in my search logs: "how to count non-DNA bases in a sequence" and "how to tell if a sequence contains DNA" (presumably as opposed to protein).

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Learn how to take input from a user and system In Python. Accept an integer, float, character, and string input from a user. In Python, there are various ways for reading input from the user from the command line...May 20, 2020 · Raw_Input and Input. There are two functions in Python that you can use to read data from the user: raw_input and input. You can store the results from them into a variable.

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May 29, 2020 · Here the sequence may be a string or list or tuple or set or dictionary or range. Since range data type generates a sequence of numbers, let us take the range in the place of sequence in the above syntax and discuss a few examples to understand the python for loop range concept. Python Variables; Python Strings ; Use Python's input() function to accept user input. You can then use this input within your program. You can write Python programs that accept user input. You could ask the user their name, their age, or pretty much anything. The user's input can then be used within your program in any number of ways. If you don't know how to ignore all the characters of user input except the first character then you are at the right place. Because in this tutorial we gonna find out how to accept only first character as an user input in Here \n is used just to create a new line so that it looks nice. If you wish you can omit it.The following Python program reading a text file and splitting it into single words in python example with open("my_file.txt", "r") as my_file: for line in my_file: str = line.split() print(str)

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Jul 12, 2015 · Line 10: This initializes our input dataset as a numpy matrix. Each row is a single "training example". Each column corresponds to one of our input nodes. Thus, we have 3 input nodes to the network and 4 training examples. Line 16: This initializes our output dataset. In this case, I generated the dataset horizontally (with a single row and 4 ... Input a comma - separated string using raw_input () method. Split the elements delimited by comma (,) and assign it to the list, to split string, use string.split () method. The converted list will contains string elements. Convert elements to exact integers: Aug 11, 2020 · Take multiple input with a single line in Python. We can use it in a single statement also like below. a,b=input () ,input () print ( a) print ( b) Output: Here above cod e is single-line but we ... Jun 01, 2019 · Python tutorial to print the keys and values of a dictionary. This tutorial will show you different ways to print the key value pairs of a given dictionary. We will learn by using a loop, using items() method and by iterating through all keys. I have another problem with pythons Input, and I was wondering if someone could help me. Whenever I get any input from the user, python keeps printing out on a new line. So for example: test = raw_input ("Input word") print "Why "+ test +" there a line break … Jump to Post Dec 19, 2020 · Python is so flexible, that it isn’t immediately apparent what you can do with it. You can read a ton of tutorials, for example, and still not understand how to make a game in Python, or how to ... C:\AI\python\sample.txt In Chapter 1 we noted that the backslash character ‘\’ has special meaning in Python strings—namely that the next character should be interpreted in some special way. In order to get actual backslashes in a Python string we need to put a backslash before each of them. For example: filename = 'C:\\AI\\python\\sample ...

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Jul 30, 2020 · My Solution: Python 3. Using While Loop. n = int ( input ()) #input () function takes input as string type #int () converts it to integer type fact = 1 i = 1 while i <= n : fact = fact * i ; i = i + 1 print ( fact) Using For Loop. n = int ( input ()) #input () function takes input as string type #int () converts it to integer type fact = 1 for i in range ( 1, n+1 ): fact = fact * i print ( fact)

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The head and tail commands take a file as argument and prints its first and last 10 lines of the file respectively. Problem 20: Implement unix command grep . The grep command takes a string and a file as arguments and prints all lines in the file which contain the specified string.

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1.5 Input and Output extends the set of input and output abstractions (from command-line input and standard output) to include standard input, standard drawing, and standard audio. 1.6 Case Study: Random Web Surfer presents a case study that models the behavior of a web surfer using a Markov chain. Python Programs in this Chapter Python provides for six sequence (or sequential) data types: strings byte sequences byte arrays lists tuples range objects. Generally speaking a list is a collection of objects. To be more precise: A list in Python is an ordered group of items or elements. It's important to notice that these list elements don't...

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In Python, any line of instructions containing the # symbol ("pound sign" or "hash") denotes the start of a comment. The rest of the line will be ignored Strings are sequences of letters and numbers, or in other words, chunks of text. They are surrounded by two quotes for protection: for example in Lesson...You can start a process in Python using the Popen function call. The program below starts the unix program ‘cat’ and the second parameter is the argument. This is equivalent to ‘cat test.py’. Oct 16, 2018 · The below table contains a list of Python Escape sequence characters and relevant examples. ... the the beginning of the line while overriding same number of ... In this step-by-step Python tutorial, you'll learn how to take user input from the keyboard with the built-in function input(), how to display input() pauses program execution to allow the user to type in a line of input from the keyboard. Once the user presses the Enter key, all characters typed are read...You can run multiple lines of code at a time by using Shift+Enter to separate each line, or by pasting in a multi-line block that you copy from a text editor. You can execute Python script files by simply typing the file name into the console. print ("Input the value of x & y") 2. x, y = map (int, input ().split ()) 3. print ("The value of x & y are: ",x,y) Edit this code. line that just executed. next line to execute. << First.

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The readline () method reads single line from the specified file. If used in text mode then readline () returns string and returns byte object in binary mode. A “ ”, the trailing newline character is left at the end of the string. You may provide size argument in the readline () method, the optional numeric argument. So each word input into our LSTM network below will be a 650 length vector. Next, because we will be inputting a sequence of words into our unrolled LSTM network, for each input row we will be inputting 35 of these word vectors. So the input for each row will be (35 x 650) in size. To take input in Python, we use input() function, it asks for an input from the user and returns a string value, no matter what value you have entered, all There is no such method, that can be used to take input as a float directly - but input string can be converted into a float by using float() function which...Python's event-controlled loop statement is the while statement. You should use it when you don't know beforehand how many times you will have to for loops are often used to perform an operation on every element of some kind of sequence. If you wanted to iterate over a list using the classic-style...

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The format specification [^ ] matches any sequence of characters up to a newline. The '*' tells scanf to skip the matching input without assigning it to any variabe (consequently, there is no corresponding variable in the argument list of scanf). But this doesn't read the newline itself! We have to read it explicitly ourselves. The following is an example of using head with two input files: head aardvark armadillo. If it is desired to obtain some number of lines other than the default ten, the -n option can be used followed by an integer indicating the number of lines desired. For example, the above example could be modified to display the first 15 lines from each file: Python multiline comments. In python there is only one symbol for comments which is #. Some languages like Java has native support for multiline comments. This is not the case for python where you can comment several lines the same way you are commenting a single line: # This # is # a # multi-line # comment Python multiline comments "pro way" The range() method generates an immutable object that is a sequence of numbers. When it comes to operating on the resulting sequence, however, NumPy arrays have a clear advantage in Starting with memory, we can find out how much memory is consumed by a Python list object vs NumPy array.Any line ending in the input file will be seen as a ' ' in Python, so little other code has to change to handle universal newlines. Conversion of newlines happens in all calls that read data: read() , readline() , readlines() , etc. 1.5 Input and Output extends the set of input and output abstractions (from command-line input and standard output) to include standard input, standard drawing, and standard audio. 1.6 Case Study: Random Web Surfer presents a case study that models the behavior of a web surfer using a Markov chain. Python Programs in this Chapter