Need help solving this in python
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Question
Need help solving this in python
![**Lab Activity: Word Frequencies (Dictionaries)**
**Objective**: To build a dictionary that counts the frequency of each word in a given list of words.
### Provided Code Template:
```python
def build_dictionary(words):
# The frequencies dictionary will be built with your code below.
# Each key is a word string and the corresponding value is an integer
# indicating that word's frequency.
''' Type your code here (remove the "pass" statement below) '''
pass
# The following code asks for input, splits the input into a word list,
# calls build_dictionary(), and displays the contents sorted by key.
if __name__ == '__main__':
words = input().split()
your_dictionary = build_dictionary(words)
sorted_keys = sorted(your_dictionary.keys())
for key in sorted_keys:
print(key + ': ' + str(your_dictionary[key]))
```
### Example Output:
```
the output is:
Mark: 1
hey: 1
hi: 2
mark: 1
```
### Explanation:
The code is a framework for creating a word frequency counter. Users will input a sentence or list of words, which is split into individual words. The `build_dictionary` function will count how frequently each word appears and store this information in a dictionary. The words and their frequencies are then printed in alphabetical order.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F722c0934-aff7-4600-989e-1d198e6697ab%2Fc642c1f0-e2a6-49b0-8fec-9a40efc7c679%2Fbs5u2l4_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Lab Activity: Word Frequencies (Dictionaries)**
**Objective**: To build a dictionary that counts the frequency of each word in a given list of words.
### Provided Code Template:
```python
def build_dictionary(words):
# The frequencies dictionary will be built with your code below.
# Each key is a word string and the corresponding value is an integer
# indicating that word's frequency.
''' Type your code here (remove the "pass" statement below) '''
pass
# The following code asks for input, splits the input into a word list,
# calls build_dictionary(), and displays the contents sorted by key.
if __name__ == '__main__':
words = input().split()
your_dictionary = build_dictionary(words)
sorted_keys = sorted(your_dictionary.keys())
for key in sorted_keys:
print(key + ': ' + str(your_dictionary[key]))
```
### Example Output:
```
the output is:
Mark: 1
hey: 1
hi: 2
mark: 1
```
### Explanation:
The code is a framework for creating a word frequency counter. Users will input a sentence or list of words, which is split into individual words. The `build_dictionary` function will count how frequently each word appears and store this information in a dictionary. The words and their frequencies are then printed in alphabetical order.
![Implement the `build_dictionary()` function to build a word frequency dictionary from a list of words.
**Example 1:**
If the words list is:
```
["hey", "hi", "Mark", "hi", "mark"]
```
The dictionary returned from calling `build_dictionary(words)` is:
```
{'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1}
```
**Example 2:**
If the words list is:
```
["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"]
```
The dictionary returned from calling `build_dictionary(words)` is:
```
{'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1}
```
The main code builds the word list from an input string, calls `build_dictionary()` to build the dictionary, and displays the dictionary sorted by key value.
**Example Input:**
```
hey hi Mark hi mark
```
**Output:**
```
Mark: 1
hey: 1
hi: 2
mark: 1
```](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F722c0934-aff7-4600-989e-1d198e6697ab%2Fc642c1f0-e2a6-49b0-8fec-9a40efc7c679%2Fbu7twp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Implement the `build_dictionary()` function to build a word frequency dictionary from a list of words.
**Example 1:**
If the words list is:
```
["hey", "hi", "Mark", "hi", "mark"]
```
The dictionary returned from calling `build_dictionary(words)` is:
```
{'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1}
```
**Example 2:**
If the words list is:
```
["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"]
```
The dictionary returned from calling `build_dictionary(words)` is:
```
{'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1}
```
The main code builds the word list from an input string, calls `build_dictionary()` to build the dictionary, and displays the dictionary sorted by key value.
**Example Input:**
```
hey hi Mark hi mark
```
**Output:**
```
Mark: 1
hey: 1
hi: 2
mark: 1
```
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