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At a Glance
• Python is a versatile and dynamic programming language renowned for its simplicity, readability, and extensive
range of applications.
• Python has two basic programming modes—Interactive mode and Script mode.
• Jupyter Notebook is an open-source web application that allows you to create and share documents that
contain live code, equations, visualisations, and narrative text.
• In Python, a character set refers to a collection of characters, typically defined by a specific encoding scheme,
such as ASCII (American Standard Code for Information Interchange) or Unicode.
• Identifiers in Python are names given to various program elements such as variables, functions, classes,
modules, etc.
• Tokens in Python are fundamental elements of the language’s syntax and are the smallest individual units of a
program.
• In Python, operators can be defined as special symbols which perform arithmetic and logical computation.
• In Python, comments are used to annotate code with explanations, documentation, or notes.
• Variables in Python are declared simply by assigning a value to them using the assignment operator (=).
• Data types in Python specify the type of values that a variable can hold.
• A CSV file is a popular and widely used format for storing and exchanging tabular data.
• NumPy is a fundamental library in Python that is used for performing numerical computation.
• Pandas is a popular Python library widely used for data manipulation and analysis.
• Scikit-learn is a powerful machine learning library in Python that provides simple and efficient tools for data
mining and data analysis.
• The Iris dataset is a classic dataset in machine learning and statistics.
Exercise
Solved Questions
SECTION A (Objective Type Questions)
uiz
A. Tick ( ) the correct option.
1. What is meant by "Python is a dynamically typed language"?
a. You must declare the type of a variable when you create it.
b. The type of a variable is inferred at runtime.
c. Python does not support variable types.
d. Variable types are checked at compile time.
2. Which programming paradigm does Python support?
a. Class-oriented b. Variable-oriented
c. Object-oriented d. All of these
3. Which of the following is NOT a keyword in Python?
a. var b. async
c. def d. lambda
236 Touchpad Artificial Intelligence (Ver. 3.0)-XI

