...prompt.

A problem with the GNU Readline package may prevent this.

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...interpreter.

I'd prefer to use different fonts to distinguish input from output, but the amount of LaTeX hacking that would require is currently beyond my ability.

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...value.

Actually, call by object reference would be a better description, since if a mutable object is passed, the caller will see any changes the callee makes to it (e.g., items inserted into a list).

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...etc.

The rules for comparing objects of different types should not be relied upon; they may change in a future version of the language.

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...somewhere.

In fact function definitions are also `statements' that are `executed'; the execution enters the function name in the module's global symbol table.

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...space!

Except for one thing. Module objects have a secret read-only attribute called __dict__ which returns the dictionary used to implement the module's name space; the name __dict__ is an attribute but not a global name. Obviously, using this violates the abstraction of name space implementation, and should be restricted to things like post-mortem debuggers...

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