coursera python data structures assignment 10.2 answers

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anishagithub commented Jul 3, 2021

why is my code not working: xs=open('8.5not.txt') c=dict() p=list() for line in xs: if line.startswith('From '): words=line.split() else: continue for word in words: m=word[5].split(':') c[m[0]]=c.get(m[0],0)+1 for k,v in c.items(): p.append(k,v) p.sort() print(p)

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kapazan commented Oct 16, 2022

The code works but it is still problematic. If you write "From" instead of "From " without a space at the end, code blows up as it also iterates the lines whose length are smaller than 5.

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Python data structures: Assignment 10.2

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Python data structures Chapter 6 Quiz

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Python Data Structures

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Instructor: Charles Russell Severance

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What you'll learn

Explain the principles of data structures & how they are used

Create programs that are able to read and write data from files

Store data as key/value pairs using Python dictionaries

Accomplish multi-step tasks like sorting or looping using tuples

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• Data Analysis
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• Data Structures
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There are 7 modules in this course

This course will introduce the core data structures of the Python programming language. We will move past the basics of procedural programming and explore how we can use the Python built-in data structures such as lists, dictionaries, and tuples to perform increasingly complex data analysis. This course will cover Chapters 6-10 of the textbook “Python for Everybody”. This course covers Python 3.

Chapter Six: Strings

In this class, we pick up where we left off in the previous class, starting in Chapter 6 of the textbook and covering Strings and moving into data structures. The second week of this class is dedicated to getting Python installed if you want to actually run the applications on your desktop or laptop. If you choose not to install Python, you can just skip to the third week and get a head start.

What's included

7 videos 7 readings 1 quiz 1 app item

7 videos • Total 57 minutes

• Video Welcome - Dr. Chuck • 1 minute • Preview module
• 6.1 - Strings • 15 minutes
• 6.2 - Manipulating Strings • 17 minutes
• Worked Exercise: 6.5 • 8 minutes
• Bonus: Office Hours New York City • 2 minutes
• Bonus: Monash Museum of Computing History • 7 minutes
• Fun: The Textbook Authors Meet @PyCon • 3 minutes

7 readings • Total 70 minutes

• Reading: Welcome to Python Data Structures • 10 minutes
• Help Us Learn More About You! • 10 minutes
• Course Syllabus • 10 minutes
• Textbook • 10 minutes
• Submitting Assignments • 10 minutes
• Notice for Auditing Learners: Assignment Submission • 10 minutes
• Audio Versions of All Lectures • 10 minutes

1 quiz • Total 30 minutes

• Chapter 6 Quiz • 30 minutes

1 app item • Total 60 minutes

• Assignment 6.5 • 60 minutes

Unit: Installing and Using Python

In this module you will set things up so you can write Python programs. We do not require installation of Python for this class. You can write and test Python programs in the browser using the "Python Code Playground" in this lesson. Please read the "Using Python in this Class" material for details.

5 videos 2 readings 1 peer review 1 app item

5 videos • Total 26 minutes

• Demonstration: Using the Python Playground • 3 minutes • Preview module
• Windows 10: Installing Python and Writing A Program • 6 minutes
• Windows: Taking Screen Shots • 2 minutes
• Macintosh: Using Python and Writing A Program • 9 minutes
• Macintosh: Taking Screen Shots • 4 minutes

2 readings • Total 20 minutes

• Important Reading: Using Python in this Class • 10 minutes
• Notes on Choice of Text Editor • 10 minutes

1 peer review • Total 60 minutes

• Optional- Installing Python Screen Shots • 60 minutes
• Python Code Playground • 60 minutes

Chapter Seven: Files

Up to now, we have been working with data that is read from the user or data in constants. But real programs process much larger amounts of data by reading and writing files on the secondary storage on your computer. In this chapter we start to write our first programs that read, scan, and process real data.

5 videos 1 reading 1 quiz 2 app items

5 videos • Total 46 minutes

• 7.1 - Files • 8 minutes • Preview module
• 7.2 - Processing Files • 11 minutes
• Demonstration: Worked Exercise 7.1 • 9 minutes
• Bonus: Office Hours Barcelona • 1 minute
• Bonus: Gordon Bell - Building Blocks of Computing • 15 minutes

1 reading • Total 10 minutes

• Where is the 7.2 worked exercise? • 10 minutes
• Chapter 7 Quiz • 30 minutes

2 app items • Total 120 minutes

• Assignment 7.1 • 60 minutes
• Assignment 7.2 • 60 minutes

Chapter Eight: Lists

As we want to solve more complex problems in Python, we need more powerful variables. Up to now we have been using simple variables to store numbers or strings where we have a single value in a variable. Starting with lists we will store many values in a single variable using an indexing scheme to store, organize, and retrieve different values from within a single variable. We call these multi-valued variables "collections" or "data structures".

7 videos 1 quiz 2 app items

7 videos • Total 47 minutes

• 8.1 - Lists • 10 minutes • Preview module
• 8.2 - Manipulating Lists • 9 minutes
• 8.3 - Lists and Strings • 7 minutes
• Fun: Python Lists in Paris • 0 minutes
• Worked Exercise: Lists • 11 minutes
• Bonus: Office Hours - Chicago • 0 minutes
• Bonus: Rasmus Lerdorf - Inventing the PHP Language • 7 minutes
• Chapter 8 Quiz • 30 minutes
• Assignment 8.4 • 60 minutes
• Assignment 8.5 • 60 minutes

Chapter Nine: Dictionaries

The Python dictionary is one of its most powerful data structures. Instead of representing values in a linear list, dictionaries store data as key / value pairs. Using key / value pairs gives us a simple in-memory "database" in a single Python variable.

7 videos 1 quiz 1 app item

7 videos • Total 75 minutes

• 9.1 - Dictionaries • 9 minutes • Preview module
• 9.2 - Counting with Dictionaries • 8 minutes
• 9.3 - Dictionaries and Files • 13 minutes
• Worked Exercise: Dictionaries • 26 minutes
• Bonus: Office Hours - Amsterdam • 3 minutes
• Bonus: Brendan Eich - Inventing Javascript • 11 minutes
• Fun: Dr. Chuck Goes Motocross Racing • 2 minutes
• Chapter 9 Quiz • 30 minutes
• Assignment 9.4 • 60 minutes

Chapter Ten: Tuples

Tuples are our third and final basic Python data structure. Tuples are a simple version of lists. We often use tuples in conjunction with dictionaries to accomplish multi-step tasks like sorting or looping through all of the data in a dictionary.

6 videos 1 quiz 1 app item

6 videos • Total 51 minutes

• 10 - Tuples • 17 minutes • Preview module
• Worked Exercise: Tuples and Sorting • 12 minutes
• Bonus: Office Hours - Puebla, Mexico • 1 minute
• Bonus: John Resig - Inventing JQuery • 10 minutes
• Douglas Crockford: JavaScript Object Notation (JSON) • 7 minutes
• Fun: The Greatest Taco in the World • 2 minutes
• Chapter 10 Quiz • 30 minutes
• Assignment 10.2 • 60 minutes

To celebrate your making it to the halfway point in our Python for Everybody Specialization, we welcome you to attend our online graduation ceremony. It is not very long, and it features a Commencement speaker and very short commencement speech.

2 videos 2 readings

2 videos • Total 16 minutes

• Graduation Ceremony • 7 minutes • Preview module
• Dr.Chuck Wrap Up/What's Next • 8 minutes
• Please Rate this Course on Class-Central • 10 minutes
• Post-Course Survey • 10 minutes

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Reviewed on Aug 18, 2017

i have learned what exact python is now on this stage i can program in python and i recommend everyone want to study about the python to take this course and experienced and really thanks to Dr. CHUCK

Reviewed on Oct 8, 2017

assignment 9.4 auto grader not working .

LTI unable to launch. error message: This tool should be launched from a learning system using LTI. i am using chrome on mac book air 2 and python 3.6

Reviewed on Jun 19, 2020

Great course for pyhton. Loved this course and enjoyed it. Thanks to Dr.Chuck. If anyone who want to take a course which is well explained and fun for python learning, then Hey!!! this is your course.

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Coursera python data structures assignment answers.

This course will introduce the core data structure of the Python programming ... And, the answer is only for hint . it is helpful for those student who haven't submit Assignment and who confused ... These five lines are the lines to do this particular assignment where we are ...

chapter 7 week 3 Assignment 7.1

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