the agent should give an error for malformed path entries

[apotterri]

The agent should check the format of a path entry in appmap.yml, and fail if it finds a bad one. In particular, it should detect entries that contain path separators (/, \) and offer a hint that path entries are module names, not directory paths.

[apotterri]

The values of a path property needs to be a module name, so this would work:

def check_path_value(value):
    try:
        import ast
        ast.parse(f"import {value}")
        return True
    except SyntaxError:
        pass
    return False