## Delete Prussia from `country_capital`This lesson demonstrates how to delete an entry from a dictionary in Python. The task involves removing the entry for "Prussia" from a `country_capital` dictionary.### Sample OutputGiven the input:```'Spain:Madrid,Togo:Lome,Prussia:Konigsberg'```The program will output:```Prussia deleted? Yes.Spain deleted? No.Togo deleted? No.```### Code Explanation```python1 user_input = input()2 entries = user_input.split(',')3 country_capital = {}45 for pair in entries:6 split_pair = pair.split(':')7 country_capital[split_pair[0]] = split_pair[1]8 # country_capital is a dictionary, Ex. {'Germany': 'Berlin', 'France': 'Paris'}91011 print('Prussia deleted?', end=' ')12 if 'Prussia' in country_capital:13 print('No.')14 else:15 print('Yes.')```#### Code Breakdown- **Line 1:** Takes user input.- **Line 2:** Splits the input string into individual country-capital pairs.- **Line 3:** Initializes an empty dictionary named `country_capital`.- **Lines 5-7:** Iterates over each pair, splits it by the colon `:`, and adds the country and its capital to the `country_capital` dictionary.- **Comment on Line 8:** Provides an example of what the `country_capital` dictionary looks like, with countries as keys and capitals as values.- **Line 11:** Checks if 'Prussia' is in the `country_capital` dictionary.- **Lines 12-15:** Prints 'No' if Prussia is still present, and 'Yes' if it has been deleted. ### Educational InsightThis exercise helps understand basic dictionary operations in Python, including how to populate a dictionary and check for the existence of a key. Understanding these operations is fundamental for managing data efficiently in Python.

In this question we have to modify the code to delete the prussia from the country capital.Let's…

Answered: Delete Prussia from country_capital.…

Delete Prussia from country_capital. Sample output with input: 'Spain:Madrid, Togo:Lome, Prussia:Konigsberg' Prussia deleted? Yes. Spain deleted? No. Togo deleted? No.

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

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Concept explainers

Data Dictionary

A database management system has an entity-relationship diagram, data dictionary, and data model as some of its key components, which are tools for the users who are managing the database. One of them is the data dictionary. The data dictionary can also be called metadata. By definition, metadata is a generic concept in the world of information and technology. An example of metadata could be meta-information about a media file or an image file, like author, location, last updated, size, etc. The contents of a data dictionary are names, attributes, and properties of main data elements which are captured during an experiment or stored in an information system, for example, databases. We can also call it a central repository of information about the main data.

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## Delete Prussia from `country_capital`

This lesson demonstrates how to delete an entry from a dictionary in Python. The task involves removing the entry for "Prussia" from a `country_capital` dictionary.

### Sample Output

Given the input:

```
'Spain:Madrid,Togo:Lome,Prussia:Konigsberg'
```

The program will output:

```
Prussia deleted? Yes.
Spain deleted? No.
Togo deleted? No.
```

### Code Explanation

```python
1 user_input = input()
2 entries = user_input.split(',')
3 country_capital = {}
4
5 for pair in entries:
6 split_pair = pair.split(':')
7 country_capital[split_pair[0]] = split_pair[1]
8 # country_capital is a dictionary, Ex. {'Germany': 'Berlin', 'France': 'Paris'}
9
10
11 print('Prussia deleted?', end=' ')
12 if 'Prussia' in country_capital:
13 print('No.')
14 else:
15 print('Yes.')
```

#### Code Breakdown

- **Line 1:** Takes user input.
- **Line 2:** Splits the input string into individual country-capital pairs.
- **Line 3:** Initializes an empty dictionary named `country_capital`.
- **Lines 5-7:** Iterates over each pair, splits it by the colon `:`, and adds the country and its capital to the `country_capital` dictionary.
- **Comment on Line 8:** Provides an example of what the `country_capital` dictionary looks like, with countries as keys and capitals as values.
- **Line 11:** Checks if 'Prussia' is in the `country_capital` dictionary.
- **Lines 12-15:** Prints 'No' if Prussia is still present, and 'Yes' if it has been deleted.

### Educational Insight

This exercise helps understand basic dictionary operations in Python, including how to populate a dictionary and check for the existence of a key. Understanding these operations is fundamental for managing data efficiently in Python.

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