Basics of Python and Tokens Flashcards
What are the 6 basics of Python?
- Variables and data types
- Operators
- Control flow
- Functions
- Modules
- OOP
What are the 7 data types?
- Numbers/numerics
- Strings
- Lists
- Tuples
- Dictionaries
- Sets
- Booleans
What are the ordered data types?
- Numerics
- Strings
- Lists
- Tuples
What are the unordered data types?
- Dictionaries
- Sets
It is a scalar/primitive data type.
Booleans.
Lists are an ordered collection as well as a __ collection.
sequence
Tuples are __ collections and are __.
ordered, immutable
Dictionaries are __ collections of __-__ pairs.
unordered, key value
Give an example of a key-value pair.
“Name: “ “Alice”
Sets are __ collections of __ elements.
unordered, unique
What values are in a boolean?
True or false.
The 3 operators.
- Arithmetic
- Comparison
- Logic
3 examples of arithmetic operators.
- //
- %
- **
What does the arithmetic operator // do?
It takes the greatest integer of a quotient.
What does the arithmetic operator % do?
It takes the remainder of a quotient.
What does the arithmetic operator ** do?
It indicates an exponent.
== is a __ operator used in __ operations.
comparison, conditional
Give 3 examples of logic operators.
- And
- Or
- Not
Give 4 examples of control flow functions.
- if-else statements
- for loops
- while loops
- break and continue
3 processes of functions
- Defining
- Calling
- Returning values
2 uses of modules.
- Organising code
- Importing modules
4 characteristics of OOP.
- Classes
- Objects
- Inheritance
- Polymorphism
Tokens in Python are the smallest…
unit of a program that has a specific meaning.
What are the 6 categories of tokens?
- Keywords
- Identifiers
- Literals
- Operators
- Delimiters
- Comments
Keywords are __ words that have __ meaning in Python.
reserved, special
Keywords can be used as identifiers.
False. They can’t be used as identifiers because keywords are reserved words.
Types of keywords can be…
flow control, data types, classes and objects, and modules and packages.
Examples of keywords.
if, else, for, while, def, class, import, try, except.
Identifiers are names…
given to variables, functions, classes, and modules.
__ starts with a letter or an _ and can contain letters, __, or __.
Identifiers, underscores, numbers, underscores
Identifiers must begin with…
- A letter of the English language
- A non-English letter (a or π)
- Underscore
- Dollar sign
Identifiers can begin with a digit.
False.
What casing convention does Python follow?
snake_case.
Describe snake_case.
It is where all words are lowercase and separated by an underscore.
snake_case is used for…
variables, function, and modules.
What casing convention do class names use?
PascalCase/UpperCamelCase.
Describe PascalCase.
It is where several words are joined together, and the first letter of every word is capitalized.
Describe PascalCase.
It is where several words are joined together, and the first letter of every word is capitalized.
Literals represents…
constant values.
Literals can only be strings.
False. Literals can be different data types (i.e., numbers, strings, etc.)
Literals cannot be “none”.
False.
“None” represents…
the absence of values.
They are symbols used to perform operations on values.
Operators.
Delimiters are characters used to…
separate different parts of a Python program (e.g., “()”, “{}”, etc.).
These start with a “#” for single lines, or “ “’ “ for multiple lines.
Comments.
Comments are texts…
ignored by the Python interpreter.
It is a token used to explain code or provide documentation.
Comments.
This defines how a class can be accessed.
Access specifier.
It is a crucial aspect of the language’s syntax and is used to define code blocks and control the flow of execution.
Indentation.
