python: import and Class and dir()

Python:
No matter what the current directory is, Python must import the things it need.
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Java:
If the class or jar is in the CLASSPATH, import will cause errors like: "import abc; something is expected"

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Import for Python:

• What is imported is just the module name. If in the module a class is defined, to get a instance of the class, you must
  >>>import abc # here abc is the module file name
  >>>instance=abc.Cons() # here Cons is the class constructor; for jython, abc=Cons, it will looks like >>>instance=abc.abc()
• >>>dir(instance)
  [] # this is just what you got when you want to check what methods is available for the object. If you want to achieve it, you should run:
  >>>dir(abc.Cons) # in Jython it should be: >>>dir(abc.abc)