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- A name that refers to a value.
- A statement that assigns a value to a variable.
- state diagram:
- A graphical representation of a set of variables and the values they refer to.
- A reserved word that is used to parse a program; you cannot use keywords like
while as variable names.
- One of the values on which an operator operates.
- A combination of variables, operators, and values that represents a single result.
- To simplify an expression by performing the operations in order to yield a single value.
- A section of code that represents a command or action. So far, the statements we have seen are assignments and print statements.
- To run a statement and do what it says.
- interactive mode:
- A way of using the Python interpreter by typing code at the prompt.
- script mode:
- A way of using the Python interpreter to read code from a script and run it.
- A program stored in a file.
- order of operations:
- Rules governing the order in which expressions involving multiple operators and operands are evaluated.
- To join two operands end-to-end.
- Information in a program that is meant for other programmers (or anyone reading the source code) and has no effect on the execution of the program.
- syntax error:
- An error in a program that makes it impossible to parse (and therefore impossible to interpret).
- An error that is detected while the program is running.
- The meaning of a program.
- semantic error:
- An error in a program that makes it do something other than what the programmer intended.