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TEST: Use package-wide setup and teardown to adjust numpy print options #785

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Merged
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Aug 2, 2019
Merged

TEST: Use package-wide setup and teardown to adjust numpy print options #785

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TEST: Use package-wide setup and teardown to adjust numpy print options
effigies Jul 30, 2019
4d7dd36
MAINT: Use a more general _test_state structure for setup/teardown
effigies Jul 30, 2019
4cccd86
Apply suggestions from code review
effigies Jul 31, 2019
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29 changes: 20 additions & 9 deletions nibabel/__init__.py
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Expand Up @@ -35,16 +35,27 @@
For more detailed information see the :ref:`manual`.
"""


def setup_test():
""" Set numpy print options to "legacy" for new versions of numpy

If imported into a file, nosetest will run this before any doctests.
"""
import numpy
# Package-wide test setup and teardown
_test_states = {
# Numpy changed print options in 1.14; we can update docstrings and remove
# these when our minimum for building docs exceeds that
'legacy_printopt': None,
}

def setup_package():
""" Set numpy print style to legacy="1.13" for newer versions of numpy """
import numpy as np
from distutils.version import LooseVersion
if LooseVersion(numpy.__version__) >= LooseVersion('1.14'):
numpy.set_printoptions(legacy="1.13")
if LooseVersion(np.__version__) >= LooseVersion('1.14'):
if _test_states.get('legacy_printopt') is None:
_test_states['legacy_printopt'] = np.get_printoptions().get('legacy')
np.set_printoptions(legacy="1.13")

def teardown_package():
""" Reset print options when tests finish """
import numpy as np
if _test_states.get('legacy_printopt') is not None:
np.set_printoptions(legacy=_test_states.pop('legacy_printopt'))


# module imports
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1 change: 0 additions & 1 deletion nibabel/affines.py
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Expand Up @@ -6,7 +6,6 @@
import numpy as np

from six.moves import reduce
from . import setup_test # noqa


class AffineError(ValueError):
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1 change: 0 additions & 1 deletion nibabel/casting.py
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Expand Up @@ -8,7 +8,6 @@
from platform import processor, machine

import numpy as np
from . import setup_test # noqa


class CastingError(Exception):
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1 change: 0 additions & 1 deletion nibabel/nicom/dwiparams.py
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Expand Up @@ -21,7 +21,6 @@
'''
import numpy as np
import numpy.linalg as npl
from .. import setup_test as setup_module # noqa


def B2q(B, tol=None):
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1 change: 0 additions & 1 deletion nibabel/nifti1.py
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Expand Up @@ -28,7 +28,6 @@
from .spm99analyze import SpmAnalyzeHeader
from .casting import have_binary128
from .pydicom_compat import have_dicom, pydicom as pdcm
from . import setup_test # noqa

# nifti1 flat header definition for Analyze-like first 348 bytes
# first number in comments indicates offset in file header in bytes
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1 change: 0 additions & 1 deletion nibabel/quaternions.py
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Expand Up @@ -27,7 +27,6 @@

import math
import numpy as np
from . import setup_test # noqa

MAX_FLOAT = np.maximum_sctype(np.float)
FLOAT_EPS = np.finfo(np.float).eps
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