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34 Cards in this Set
- Front
- Back
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Activecode |
A unique interpreter environment that allows Python to be executed from within a web browser |
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Algorithm |
A general step by step process for solving a problem |
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Bug |
An error in a program |
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Byte Code |
An intermediate language between source code and object code. Many modern languages first compile source code into byte code and then interpret the byte code with a program called a virtual machine |
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Debugging |
The process of finding and removing any of the three kinds of programming errors |
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Exception |
Another name for a runtime error |
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Executable |
Another name for object code that is ready to be executed |
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Formal Language |
Any one of the languages that people have designed for specific purposes, such as representing mathematical ideas or computer programs; all programming languages are formal languages. |
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High-Level Language |
A programming language like Python that is designed to be easy for humans to read and write |
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Low-Level Language |
A programming language that is designed to be easy for a computer to execute; also called machine language or assembly language |
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Natural Language |
Any one of the languages that people speak that evolved naturally |
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Object Code |
The output of the compiler after it translates the program |
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Parse |
To examine a program and analyze the syntactic struture |
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Portability |
A property of a program that can run on more than one kind of computer |
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Print Function |
A function used in a program or script that causes the python interpreter to display a value on its output device |
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Runtime Error |
An error that does not occur until the program has started to execute but that prevents the program from continuing |
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Semantic Error |
An error in a program that makes it do something other what the programmer intended |
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Semantics |
The meaning of a program |
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Source Code |
A program, stored in a file, in a high-level language before being compiled or interpreted |
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Syntax |
The structure of a program |
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Syntax Error |
A error in a program that makes it impossible to parse - and therefore impossible to interpret |
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Token |
One of the basic elements of the syntactic structure of a program, analogous to a word in a natural language |
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Data Type |
A set of values. The type of a value determines how it can be used in expressions. So far, the types you have seen in integers (int), floating-point numbers (float), and strings (str). |
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Evaluate |
To simplify an expression by performing the operations in order to yield a single value |
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Expression |
A combination of operators and operands (variables and values) that represent a single result value. Expressions are evaluated to give that result. |
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Object |
Also known as a data object (or data value). The fundamental things that programs are designed to manipulate (or that programmers ask to do things for them). |
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Prompt String |
Used during interactive input to provide the use with hints as to what type of value to enter |
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Statement |
An instruction that the Python interpreter can execute. So far we have only seen the assignment statement, but we will soon meet the import statement and the for statement |
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Value |
A number or string (or other things to be named later) that can be stored in a variable or computed in an expression. |
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Variable |
A name that refers to a value |
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For loop |
A statement in Python for convenient repetition of statements in a body of the loop |
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Iteration |
A basic building block for algorithms (programs). It allows steps to be repeated. Sometimes called looping |
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Terminating Condition |
A condition that occurs which causes a loop to stop repeating its body. In the for loops we saw in this chapter, the terminating condition has been when there are no more elements to assign to the loop variable |
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Turtle |
A data object used to create pictures (known as turtle graphics). |
