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Questions and Answers
What is Python?
What is Python?
A popular programming language created by Guido van Rossum.
Which of the following can Python be used for? (Select all that apply)
Which of the following can Python be used for? (Select all that apply)
- Mathematics (correct)
- Web development (correct)
- Game development
- System scripting (correct)
Python can run on different platforms such as Windows, Mac, and Linux.
Python can run on different platforms such as Windows, Mac, and Linux.
True (A)
What is the latest major version of Python mentioned?
What is the latest major version of Python mentioned?
Which of these are characteristics of Python's syntax? (Select all that apply)
Which of these are characteristics of Python's syntax? (Select all that apply)
Python was released in the year _____
Python was released in the year _____
How do you check if Python is installed on a Windows PC?
How do you check if Python is installed on a Windows PC?
What command is used to run a Python file in the Command Line?
What command is used to run a Python file in the Command Line?
Python's indentation is only for readability like in other programming languages.
Python's indentation is only for readability like in other programming languages.
What error will Python give if indentation is incorrect?
What error will Python give if indentation is incorrect?
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Study Notes
###Â Python Introduction
- Python is a popular programming language created by Guido van Rossum and released in 1991.
- It's used for web development (server-side), software development, mathematics, and system scripting.
- Python can be used on various platforms like Windows, Mac, Linux, and Raspberry Pi.
- Python's syntax is simple and similar to English with mathematical influences.
- Python uses less lines of code compared to some other programming languages.
- Python is run on an interpreter system, allowing for quick code execution and prototyping.
- Python supports procedural, object-oriented, and functional programming paradigms.
- The current major version is Python 3, but Python 2 is still popular for security updates.
- Python can be written in a text editor or an IDE like Thonny, Pycharm, Netbeans, or Eclipse.
Python Syntax
- Python syntax can be executed directly in the Command Line or by creating a .py file and running it from the Command Line.
- Indentation (spaces at the beginning of a code line) is crucial in Python.
- Indentation defines the scope of code blocks, such as loops, functions, and classes.
- Four spaces are commonly used for indentation, but at least one space is required.
- Consistent indentation within the same code block is essential.
- Comments are used to explain code and are ignored by the interpreter.
- Single-line comments start with
# - Multi-line comments are enclosed within triple quotes (
"""...""")
Python Getting Started
- Python installation: Check if Python is installed on your system.
- On Windows: Search in the start bar for Python or run
python --versionin the Command Line. - On Linux/Mac: Open the command line/terminal and type
python --version. - If Python is not installed, download it for free from https://www.python.org.
- To run a Python file (e.g.,
helloworld.py): Navigate to the file's directory in the command line and runpython helloworld.py. - Your first Python file (
helloworld.py):print("Hello, World!")
- Save your file.
- From the command line, navigate to the directory and run
python helloworld.pyto see the output:Hello, World!
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