I have been investigating the problem and found the answer. Python 3 changed the rules to find intra-package modules. You do it through relative imports.
Details can be found here: http://diveintopython3.org/porting-code-to-python-3-with-2to3.html#import But now I am stuck. I would like to make PyUSB running on any Python version >= 2.3, this including Python 3 series. But relative imports was added only in Python 2.5. So, to make Python interoperable between series 2 and 3, I would have to change version requirement to >= 2.5... I know that some people still use PyUSB with 2.3 version, but I am afraid I will have to break compatibility with versions 2.3 and 2.4... :( Any suggestion? Wander 2010/2/1 Patrick Birnzain <pbirnz...@users.sourceforge.net>: > Alright, will do. > I'll further investigate that and let you know if I find the problem. > > -- Patrick > > > Wander Lairson wrote: >> I haven't tested PyUSB with Python 3 yet. Therefore the most probable >> is that this is an issue with PyUSB. Could you please open a bug in >> the sf tracker? >> >> Wander >> >> 2010/2/1 Patrick Birnzain <pbirnz...@users.sourceforge.net>: >> >>> Hi! >>> >>> I have a problem with PyUSB and Python 3: >>> Everything seems to run fine with Python 2.6, but when I'm using Python >>> 3.1, an ImportError is raised when I try to import any part of PyUSB: >>> >>> >>>>>> import usb.core >>>>>> >>> Traceback (most recent call last): >>> File "<stdin>", line 1, in <module> >>> File "/usr/local/lib/python3.1/dist-packages/usb/__init__.py", line >>> 24, in <module> >>> from legacy import * >>> ImportError: No module named legacy >>> >>> By running "python -v -v" and "python3 -v -v", I found that Python 3 is >>> not recursing into dist-packages/usb when it's looking for legacy.py, >>> while 2.6 does. >>> Is this a bug in the v3 __init__.py or is something wrong with my Python >>> 3 setup? >>> >>> -- Patrick >>> >>> >>> ------------------------------------------------------------------------------ >>> The Planet: dedicated and managed hosting, cloud storage, colocation >>> Stay online with enterprise data centers and the best network in the >>> business >>> Choose flexible plans and management services without long-term contracts >>> Personal 24x7 support from experience hosting pros just a phone call away. >>> http://p.sf.net/sfu/theplanet-com >>> _______________________________________________ >>> Pyusb-users mailing list >>> Pyusb-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/pyusb-users >>> >>> >>> >> >> ------------------------------------------------------------------------------ >> The Planet: dedicated and managed hosting, cloud storage, colocation >> Stay online with enterprise data centers and the best network in the business >> Choose flexible plans and management services without long-term contracts >> Personal 24x7 support from experience hosting pros just a phone call away. >> http://p.sf.net/sfu/theplanet-com >> _______________________________________________ >> Pyusb-users mailing list >> Pyusb-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/pyusb-users >> >> > > ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
