In python  don't import libraries

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
icon
Related questions
Question

In python 

don't import libraries

**Purpose**: Produce a new column-based (e.g. `dict[str, list[str]]`) table with only the first N (a parameter) rows of data for each column.

**Why**: Visualizing a table with hundreds, thousands, or millions of rows in it is overwhelming. You frequently want to just see the first few rows of a table to get a sense you are on the correct path.

- **Function name**: `head`
  - **Parameters**:
    1. `dict[str, list[str]]` - a column-based table of data that will not be mutated.
    2. `int` - The number of "rows" to include in the resulting list.
  - **Return type**: `dict[str, list[str]]`

**Implementation strategy**:

1. Establish an empty dictionary that will serve as the returned dictionary this function is building up.
2. Loop through each of the columns in the first row of the table given as a parameter.
   1. Inside of the loop, establish an empty list to store each of the first N values in the column.
   2. Loop through the first N items of the table's column,
      1. Appending each item to the previously list established in step 2.1.
   3. Assign the produced list of column values to the dictionary established in step 1.
3. Return the dictionary.
Transcribed Image Text:**Purpose**: Produce a new column-based (e.g. `dict[str, list[str]]`) table with only the first N (a parameter) rows of data for each column. **Why**: Visualizing a table with hundreds, thousands, or millions of rows in it is overwhelming. You frequently want to just see the first few rows of a table to get a sense you are on the correct path. - **Function name**: `head` - **Parameters**: 1. `dict[str, list[str]]` - a column-based table of data that will not be mutated. 2. `int` - The number of "rows" to include in the resulting list. - **Return type**: `dict[str, list[str]]` **Implementation strategy**: 1. Establish an empty dictionary that will serve as the returned dictionary this function is building up. 2. Loop through each of the columns in the first row of the table given as a parameter. 1. Inside of the loop, establish an empty list to store each of the first N values in the column. 2. Loop through the first N items of the table's column, 1. Appending each item to the previously list established in step 2.1. 3. Assign the produced list of column values to the dictionary established in step 1. 3. Return the dictionary.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY