Environment:
Ubuntu Linux 12.04 (precise)
Python 2.7.3
I have a package (i.e. a directory with a __init__.py file). In that
directory, I have files math.py and test_math.py; test_math.py contains
the single line:
from .math import EMA
If I run on the command line, "nosetests test_math.py" everything is
fine (it reports "Ran 0 tests in 0.001s", which is what I expect, since
I haven't written any tests yet).
But, if I leave off the .py, I get:
$ nosetests test_math
E
======================================================================
ERROR: Failure: ValueError (Attempted relative import in non-package)
----------------------------------------------------------------------
Traceback (most recent call last):
File
"/home/roy/deploy/current/python/local/lib/python2.7/site-packages/nose/l
oader.py", line 413, in loadTestsFromName
addr.filename, addr.module)
File
"/home/roy/deploy/current/python/local/lib/python2.7/site-packages/nose/i
mporter.py", line 47, in importFromPath
return self.importFromDir(dir_path, fqname)
File
"/home/roy/deploy/current/python/local/lib/python2.7/site-packages/nose/i
mporter.py", line 94, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)
File "/home/roy/deploy/current/code/songza/util/test_math.py", line 1,
in <module>
from .math import EMA
ValueError: Attempted relative import in non-package
----------------------------------------------------------------------
Ran 1 test in 0.001s
What is going on that nose can't deal with the relative import when run
that way?
Nose has always felt like a magic ring. I'm really glad I discovered it
because it makes my life so much better. But I'm never quite sure I
really understand everything it's doing.
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