Python Programming Lecture I

This set of vocabulary flashcards covers the fundamental concepts of Python programming introduced in Lecture-I, including language traits, data types, identifiers, keywords, and operators.

Python

A simple, easy, free, and open-source high-level programming language used for coding.

Guido Van Rossum

The developer who created the Python programming language.

Translator

A program such as a compiler or interpreter that converts programming code into machine-readable format.

Portable

A feature of Python that allows it to run on different platforms or systems.

.py

The standard file extension used for Python script files.

print()

A built-in Python function used to display output to the console.

Whitespaces

Characters in the Python character set that include blank spaces, tabs, carriage returns, newlines, and formfeeds.

Variable

A name assigned to a specific memory location in a program to store data values.

Identifier

A name used for a variable, function, or other entity that can consist of letters, digits, and underscores, but cannot start with a digit.

Integer

A data type representing whole numbers which can be positive, negative, or zero ($0$).

String

A data type used for text values, such as 'Hello' or 'Shradha'.

Float

A data type used for numerical values containing decimal points, such as $3.99$ or $2.5$.

Boolean

A data type that represents one of two possible values: True or False.

None

A data type used in Python to represent the absence of a value.

Keywords

Reserved words in Python that have predefined meanings and cannot be used as identifiers, such as 'assert', 'break', and 'lambda'.

Case-sensitive

A characteristic of Python where uppercase and lowercase letters are treated as distinct (e.g., 'True' is different from 'true').

Comment

Non-executable text in a program used for explanation; single-line comments start with $\#$ and multi-line comments are enclosed in triple quotes.

Arithmetic operators

Symbols used to perform mathematical calculations: addition ($+$), subtraction ($-$), multiplication ($*$), division ($/$), modulo ($\%$), and power ($**$).

Relational operators

Comparison operators that return a boolean result (True/False), including equal to ($==$), not equal to ($!=$), and greater than or equal to ($>=$).

Modulo operator ($\%$)

An operator that performs division and returns the remainder.

Power operator ($**$)

An operator used to raise a number to a power, for example $5 ** 2$ results in $25$.

Type conversion

The automatic conversion of one data type into another by the Python interpreter during operations.

Type casting

The manual conversion of a data type by the programmer using functions like $\text{int}()$, $\text{float}()$, or $\text{str}()$.

input()

A statement used to accept input from a user via the keyboard; it always returns the result as a string type by default.