8.26 LAB: Word frequencies (dictionaries) Implement the build_dictionary() function to build a word frequency dictionary from a list of words.Ex: 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}Ex: 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.Ex: If the input is:hey hi Mark hi markthe output is:Mark: 1 hey: 1 hi: 2 mark: 1 Use Python, please. **LAB Activity: Word Frequencies (Dictionaries)**### Code ExplanationThis Python script is designed to calculate word frequencies from a given input string. The script uses a dictionary to store each word and its corresponding frequency.#### Code Breakdown1. **Function Definition: `build_dictionary(words)`** - Purpose: Create a dictionary to map each word to its frequency. - Parameters: `words` - a list of strings. - Instructions: Users are prompted to insert their code where indicated to populate the dictionary.```pythondef 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```2. **Main Program Execution** - Inputs: The program reads a line of input, splits it into individual words, and processes it. - Outputs: It displays each word with its frequency, sorted by the word.```pythonif __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]))```### Objective- **Task:** Implement the `build_dictionary` function to calculate and store the frequency of each word in the input list.This activity encourages understanding of dictionary operations, string manipulation, and basic input/output in Python programming.

Iterate over the given list and check whether each word is present or not

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

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8.26 LAB: Word frequencies (dictionaries)

Implement the build_dictionary() function to build a word frequency dictionary from a list of words.

Ex: 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}

Ex: 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.

Ex: If the input is:

hey hi Mark hi mark

the output is:

Mark: 1 hey: 1 hi: 2 mark: 1

Use Python, please.

**LAB Activity: Word Frequencies (Dictionaries)**

### Code Explanation

This Python script is designed to calculate word frequencies from a given input string. The script uses a dictionary to store each word and its corresponding frequency.

#### Code Breakdown

1. **Function Definition: `build_dictionary(words)`**
- Purpose: Create a dictionary to map each word to its frequency.
- Parameters: `words` - a list of strings.
- Instructions: Users are prompted to insert their code where indicated to populate the dictionary.

```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
```

2. **Main Program Execution**
- Inputs: The program reads a line of input, splits it into individual words, and processes it.
- Outputs: It displays each word with its frequency, sorted by the word.

```python
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]))
```

### Objective

- **Task:** Implement the `build_dictionary` function to calculate and store the frequency of each word in the input list.

This activity encourages understanding of dictionary operations, string manipulation, and basic input/output in Python programming.

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