Hi,
I'm getting some errors when using Python 3 (3.4.3) (and installing from pip, pyflann 1.6.12).

• I'm getting import errors due to relative imports. The solution is to replace various from foo import * with from .foo import *.
  See also here
  (This should also work in Python 2.)

  specifically:

  • bindings/init.py
  • the pyflann imports in index.py
  • both imports in init.py
  • io/init.py
  • the _dataset imports in io/dataset.py need to be relative as well, e.g from . import binary_dataset

• after fixing these, I get invalid syntax in find_ctypes.py, line 151. The reason is that the except Exception, e syntax was replaced by except Exception as e:.
  In this case, it could just be except Exception:

• same in io/dataset.py, line 61 and hdf5_dataset, line 34+67

• in flann_ctypes, line 201, the exec call needs brackets

• Python 3 no longer contains dict.iteritems and should be replaced by dict.items (in flann_ctypes, l.53 and 78)

(Not sure if this is the right place for these issues, I just followed the pip package to its source.)

Some additional errors which I'm not sure are the fault of Python 3:

• I get an error about flann_parameters missing when __del is called. Apparently, they are deleted before the del call?

With these fixes, pyflann seems to work.