Python-сообщество

>>> import dir1.mod1
dir1.mod1
dir1.mod2
я третий файл dir1.mod3
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    import dir1.mod1
  File "c:\global\dir1\mod1.py", line 8, in <module>
    from . import mod2
  File "c:\global\dir1\mod2.py", line 3, in <module>
    from . import mod3
  File "c:\global\dir1\mod3.py", line 3, in <module>
    from . import mod1
ImportError: cannot import name 'mod1'