Mini Project: Config Manager

Build a config tool that reads, updates, and saves JSON settings

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What you will build

A config manager with three functions: load settings from a JSON file, update a value, and save the changes back to disk.

Example output

Current theme: light
Updated theme: dark
Updated max_retries: 5

Design

Function	Purpose
`load_config(filename)`	Read and return a JSON config file as a dict
`update_config(config, key, value)`	Set `config[key]` to `value`
`save_config(config, filename)`	Write the config dict back to the JSON file

Instructions

Build the config manager.

Import json.
Define a function named load_config that takes filename. Inside, open filename in read mode and return json.load(file).
Define a function named update_config that takes config, key, and value. Inside, assign value to config[key].
Define a function named save_config that takes config and filename. Inside, open filename in write mode and call json.dump(config, file, indent=2).
Assign load_config("settings.json") to config. Call print(f"Current theme: {config['theme']}").
Call update_config(config, "theme", "dark"). Call update_config(config, "max_retries", 5). Call save_config(config, "settings.json").
Call print(f"Updated theme: {config['theme']}"). Call print(f"Updated max_retries: {config['max_retries']}").

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# settings.json contains:
# {"theme": "light", "language": "en", "notifications": true, "max_retries": 3}

# Step 1: Import json

# Step 2: Define load_config(filename)

# Step 3: Define update_config(config, key, value)

# Step 4: Define save_config(config, filename)

# Step 5: Load settings.json and print the current theme
# Step 6: Update theme to "dark", max_retries to 5, and save
# Step 7: Print the updated values

Mini Project: Config Manager

What you will build

Example output

Design

Instructions

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