Computer Science

IDE

Integrated development environment; a software application that provides comprehensive facilities to computer programmers for software development

computer science

the branch of engineering science that studies computable processes and structures

variable

something that stores information in a program so that it can be used later. Has three components: name, type, and value

str

short for string. A variable whose type is str contains text, or a sequence of 0 or more characters (numbers, letters, punctuation, spaces, etc.)

int

short for integer. A variable whose name is int contains a number that can be positive, negative, or zero. There can be no decimals

float

this is short for a floating-point number. it is similar to an integer, except it does have a decimal component

user

a person who runs a program

the input function

a function that prints a prompt and retrieves text from the user

type conversion

changing an entity of one datatype into another

function composition

an act or mechanism to combine simple functions to build more complicated ones

interpreter

a computer program that directly executes instructions written in a programming or scripting language, without requiring them previously to have been compiled into a machine language program

compiler

a special program that translates a programming language's source code into machine code, bytecode or another programming language

addition symbol

+

subtraction symbol

-

multiplication symbol

*

division symbol

/ or //

exponentiation symbol

**

modulus (remainder) symbol

%

negation symbol

-

concatenation

adding two strings together or putting them side by side

comments

text in a program that is ignored by the Python interpreter

binary operator

an operator that operates on two operands and manipulates them to return a result

unary operator

an operator that takes a single operand in an expression or a statement

syntax error

"Please cat dog monkey." an error of language resulting from code that does not conform to the syntax of the programming language

run-time error

"Please eat the piano." makes sense from a grammatical perspective — there is a verb and noun in the right place — so you know what you are being asked to do. But, you will encounter problems once you start trying to run the program

logic error

"Please close the back door so that the bugs don't come in." if the front door is also open: even though the command makes sense and you can close the back door, this doesn't actually accomplish the goal of keeping the bugs out since they'll still come in the front door