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A python program contains an import statement for a module that does not exist on the...

A python program contains an import statement for a module that does not exist on the computer it is run on.

I'm trying to determine which phase of a compiler would detect this error. I know it wouldn't be in the lexiacl analysis phase since the lexical analyzer doesn’t try to make sense of the program beyond trying to recognize tokens. I don't think this would be detected in the syntax phase since we are checking to see if the program is syntactically correct, which it is, and then we are converting the program into a syntax tree. I also don't think this would be in the semantic analysis phase since the semantic analyzer focuses on the types for values, keyword misuse, and whatnot. Would this be considered keyword misuse then since "import" is a keyword? This only leaves the back end of the compiler. Am I on the right track?

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