Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 13.7, Problem 13CP
Explanation of Solution
Module that contains “StringVar” class:
- • The module that contains the “StringVar” class is called as “tkinter”, which can be used with the “Label” widget to display the data to the user.
- • “StringVar” is created as an object of “stringVar” class in the “tkinter” module.
- • The contents that are present in the “stringVar” objects can be displayed using the “Label”widget...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please draw the diagram where it is asked to be drawn. Don't just describe how to do it.
C. Homework Assignment
Task: Write a one-page CV using the provided template.
Steps:
1. Use the CV guide to structure your CV.
2. Fill in each section with real information about yourself.
3. Format your CV neatly and use professional language.
4. Submit to the instructor before the next class
Simulate on a vertical time axis (with events labeled with the senders names A-D) the contention period of FOUR equally distanced Ethernet stations that all attempt to transmit at T=0 a minimally sized frame, in the style of the binary Exponential Backoff Algorithm. Assume that time is measured in slot times, and that exactly one slot time is needed to detect a collision (so that if two stations transmit at T=1 and collide, and one of them chooses a backoff time k=0, then that station will transmit again at T=2).
Use as coin flip (source of randomness) an ID written in binary.
use the bits in order from the least significant to the most significant. If for a given coin throw you need k bits, use the least significant ID bit extracted in the corresponding group of bits, as the least significant bit of the coin thrown.
Start be writing the ID, which is 904012207
As example of the expected answer format,
with the random sequence R: 100101010101001011001010 01 01011 10010 1010 1010 010…
Chapter 13 Solutions
Starting Out with Python (4th Edition)
Ch. 13.1 - What is a user interface?Ch. 13.1 - How does a command line interface work?Ch. 13.1 - Prob. 3CPCh. 13.1 - Prob. 4CPCh. 13.2 - Briefly describe each of the following tkinter...Ch. 13.2 - Prob. 6CPCh. 13.2 - Prob. 7CPCh. 13.3 - Prob. 8CPCh. 13.3 - Prob. 9CPCh. 13.3 - Prob. 10CP
Ch. 13.7 - Prob. 11CPCh. 13.7 - Prob. 12CPCh. 13.7 - Prob. 13CPCh. 13.7 - Prob. 14CPCh. 13.8 - You want the user to be able to select only one...Ch. 13.8 - You want the user to be able to select any number...Ch. 13.8 - How can you use an Intvar object to determine...Ch. 13.8 - Prob. 18CPCh. 13.9 - In the Canvas widgets screen coordinate system,...Ch. 13.9 - Using the Canvas widgets screen coordinate system...Ch. 13.9 - How is the Canvas widget's screen coordinate...Ch. 13.9 - 13.22 What Canvas widget methods would you use to...Ch. 13 - The ________ is the part of a computer with which...Ch. 13 - Before GUIs became popular, the interface was the...Ch. 13 - A ________ is a small window that displays...Ch. 13 - Prob. 4MCCh. 13 - An item that appears in a programs graphical user...Ch. 13 - You can use this module in Python to create GUI...Ch. 13 - Prob. 7MCCh. 13 - Prob. 8MCCh. 13 - This widget is a container that can hold other...Ch. 13 - Prob. 10MCCh. 13 - A(n) ________ is a function or method that is...Ch. 13 - Prob. 12MCCh. 13 - You can call this method to close a GUI program....Ch. 13 - You call this method to retrieve data from an...Ch. 13 - Prob. 15MCCh. 13 - If there are a group of these in a container, only...Ch. 13 - The ________ widget provides methods for drawing...Ch. 13 - Prob. 1TFCh. 13 - Prob. 2TFCh. 13 - The data that you retrieve from an Entry widget is...Ch. 13 - Prob. 4TFCh. 13 - Prob. 5TFCh. 13 - Prob. 1SACh. 13 - Prob. 2SACh. 13 - Prob. 3SACh. 13 - Prob. 4SACh. 13 - Prob. 5SACh. 13 - Prob. 6SACh. 13 - Prob. 7SACh. 13 - How can you use an IntVar object to determine...Ch. 13 - Prob. 9SACh. 13 - Prob. 1AWCh. 13 - Prob. 2AWCh. 13 - Prob. 3AWCh. 13 - Prob. 4AWCh. 13 - Write a statement that creates a Button widget....Ch. 13 - Write a statement that creates a Button widget...Ch. 13 - Assume the variable data_entry references an Entry...Ch. 13 - Prob. 8AWCh. 13 - Name and Address The Name and Address Problem...Ch. 13 - Latin Translator Look at the following list of...Ch. 13 - Miles Per Gallon Calculator Write a GUI program...Ch. 13 - Celsius to Fahrenheit Write a GUI program that...Ch. 13 - Property Tax A county collects property taxes on...Ch. 13 - Joes Automotive Joes Automotive performs the...Ch. 13 - Long-Distance Calls A long-distance provider...Ch. 13 - This Old House Use the Canvas widget that you...Ch. 13 - Prob. 9PECh. 13 - Hollywood Star Make your own star on the Hollywood...Ch. 13 - Prob. 11PECh. 13 - Solar System Use a Canvas widget to draw each of...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Big State University The Big State University course catalog reads as follows: "To enroll in MIS 260, which is an advanced course, a student must complete two prerequisites: MIS 120 and MIS 222. A student who completes either one of these prerequisites and obtains the instructor's permission, however, will be allowed to take MIS 260." Tasks 1. Create a decision table that describes the Big State University course catalog regarding eligibility for MIS 260. Show all possible rules. 2. Simplify the table you just created. Describe the results. 3. Draw a simplified decision tree to represent the Big State University catalog. Describe the results. 4. Why might you use a decision tree rather than a decision table?arrow_forwardWhat is the ALU result if the 4-bit ALU Control signal is 0100? What happens if the ALU Control signal is 0101?arrow_forward#include int main (void) { int i, *p, count } p = &count; = 10%; for (i = 5; i >= 0; i--) { count++; (*p) ++; } printf("count return 0; = %d, Have a wonderful day.\n", count); 1. [20 pts] What is the output of the program? Please explain why. 2. [15 pts] What is the gdb command to set a breakpoint in line 6 (p = &count;)? 3. [15 pts] Explain in your own words how the [break. need to use such command? ... if expr] command works. When might youarrow_forward
- Please run and debug the following program and answer the questions.arrow_forward(OnlineGDB) #include <stdio.h>int main(void) {int a;char *s;int v0 = 4, v1 = 5, v2 = 6, v3 = 1, v4 = 2;printf("Exercise 1:\n====================\n");switch(v0) {case 0: printf("Hello October\n"); break;case 1: printf("Go Kean!\n"); break;case 2: printf("Academic Building Center \n"); break;case 3: printf("UNION \n"); break;case 4: printf("Go ");case 5: printf("Kean! \n");default: printf("Have a great semester! \n"); break;}for(a=5; a<v1; a++) {printf("Kean");}printf("\n");if (v2 == 6) {s = "Go";}else {s = "Hello";}if(v3 != v4) {printf("%s Kean!\n",s);} else {printf("%s Computer Science!\n",s);}return 0;} Assume the following codes are added between line 36 (}) and line 38 (return 0;) v0>0 ? ++v1, ++v2 : --v3; Please give the values of v0, v1, v2, v3, and v4 after this line and explain the reason. You can test the program to verify your answer if you like.arrow_forward#include <stdio.h>int main(void) {int a;char *s;int v0 = 4, v1 = 5, v2 = 6, v3 = 1, v4 = 2;printf("Exercise 1:\n====================\n");switch(v0) {case 0: printf("Hello October\n"); break;case 1: printf("Go Kean!\n"); break;case 2: printf("Academic Building Center \n"); break;case 3: printf("UNION \n"); break;case 4: printf("Go ");case 5: printf("Kean! \n");default: printf("Have a great semester! \n"); break;}for(a=5; a<v1; a++) {printf("Kean");}printf("\n");if (v2 == 6) {s = "Go";}else {s = "Hello";}if(v3 != v4) {printf("%s Kean!\n",s);} else {printf("%s Computer Science!\n",s);}return 0;} Output: Exercise 1:====================Go Kean! Have a great semester! Go Kean! Please only modify the initial value of v0, v1, v2, v3 and v4 to get the following output. Youneed to show your program output (in the screenshot) and submit the code that youmodified.Exercise 1:====================Hello OctoberKeanHello Computer Science!arrow_forward
- (OnlineGDB) 1. Please read and run the following code and answer the questions.#include <stdio.h>int main(void) {int a;char *s;int v0 = 4, v1 = 5, v2 = 6, v3 = 1, v4 = 2;printf("Exercise 1:\n====================\n");switch(v0) {case 0: printf("Hello October\n"); break;case 1: printf("Go Kean!\n"); break;case 2: printf("Academic Building Center \n"); break;case 3: printf("UNION \n"); break;case 4: printf("Go ");case 5: printf("Kean! \n");default: printf("Have a great semester! \n"); break;}for(a=5; a<v1; a++) {printf("Kean");}printf("\n");if (v2 == 6) {s = "Go";}else {s = "Hello";}if(v3 != v4) {printf("%s Kean!\n",s);} else {printf("%s Computer Science!\n",s);}return 0;} What is the output of the program? Please explain why.arrow_forward1.[30 pts] Answer the following questions: a. [10 pts] Write a Boolean equation in sum-of-products canonical form for the truth table shown below: A B C Y 0 0 0 1 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 1 1 1 1 0 a. [10 pts] Minimize the Boolean equation you obtained in (a). b. [10 pts] Implement, using Logisim, the simplified logic circuit. Include an image of the circuitarrow_forwardIn the past, encryption and decryption were mostly done by substitution and permutation of letters in a text message. study those classic cryptographic schemes Then, develop an automatic cipher using Javascript The cipher should be able to perform the following tasks: generate keys encrypt a given plaintext message with a key selected from the list of keys generated decrypt a given ciphertext message with a known cipher keyarrow_forward
- List reasons why teachers should and shouldn’t be replaced by computers? State your response in a descriptive context. Provide five references from the with internet with your answers.arrow_forwardThe attached picture shows the RTCAPI memory mapped register which has the address 0x180. 1) Program the MCU's registers so that a) SIRC is the clock source b) the clock is divided by 16K c) the clock is enabled d) load is enabledarrow_forwardWhat is the ALU result if the 4-bit ALU Control signal is 0100? What happens if the ALU Control signal is 0101?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Programming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage Learning
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:9781337102124
Author:Diane Zak
Publisher:Cengage Learning
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr