14 Questions
What happens to the original list when a function gets its contents?
It remains unchanged
What can the function do with the list’s contents?
Do anything it likes with its own copy
What happens to the list when it is passed to a function?
The function gets a copy of the list
Why does the original list remain unchanged?
Because the function gets a copy of the list
What is the relationship between the function and the original list?
The function has a copy of the original list
What is the impact of the function on the original list?
It has no impact on the original list
What is the primary purpose of JSON data?
To store and manipulate complex data structures
What is the process of converting JSON data into a format that can be used by a programming language?
Deserialization
What is the default data type of a JSON file?
String
How do you load JSON data into Python?
Using the json module
What is the purpose of JSON file formatting?
To make the data more readable
What happens when you deserialize JSON data in Python?
The data is converted into a dictionary
What is the advantage of using JSON data?
It is a platform-independent data format
What is the result of serializing a Python dictionary to JSON?
A JSON object is created
Study Notes
Facebook Data
- Facebook has more users than the population of China
- Over 250 billion images are on Facebook
- There are 2.5 trillion posts on Facebook
Functions in Programming
- Functions can be used to avoid repeating code
- A function can be defined with a default value for a parameter
- The syntax for defining a function is:
def functionname(parametername=defaultvalue): - A function can have a docstring to describe its purpose
- A function can take multiple values as parameters
Passing Values to a Function
- A function can be passed a list as a parameter
- The function can access the list's contents
- The function can modify its own copy of the list without changing the original list
Comparing JSON Data to Tabular Data
- JSON data is similar to tabular data, as shown in Figure A
- Tabular data is typically organized in an Excel worksheet
Characteristics of JSON Data
- JSON data is always delivered in a text file
- JSON data can be copied and pasted into a Python string
- JSON data uses curly braces to indicate dictionary data
Creating JSON Files
- JSON files can be created by exporting data from Excel
- JSON files can also be created as keyed files, where each chunk of data has a unique identifying key
JSON Data in Python
- JSON data is equivalent to a data dictionary in Python
- JSON files are easy to work with in Python due to their similarity to data dictionaries
Test your knowledge of Facebook statistics and functions in programming, including avoiding repeated code, default parameter values, and syntax.
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