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File Content: `flinalg.py`

#
# Author: Pearu Peterson, March 2002
#

from __future__ import division, print_function, absolute_import

__all__ = ['get_flinalg_funcs']

# The following ensures that possibly missing flavor (C or Fortran) is
# replaced with the available one. If none is available, exception
# is raised at the first attempt to use the resources.
try:
    from . import _flinalg
except ImportError:
    _flinalg = None
#    from numpy.distutils.misc_util import PostponedException
#    _flinalg = PostponedException()
#    print _flinalg.__doc__
    has_column_major_storage = lambda a:0


def has_column_major_storage(arr):
    return arr.flags['FORTRAN']

_type_conv = {'f':'s', 'd':'d', 'F':'c', 'D':'z'}  # 'd' will be default for 'i',..


def get_flinalg_funcs(names,arrays=(),debug=0):
    """Return optimal available _flinalg function objects with
    names. arrays are used to determine optimal prefix."""
    ordering = []
    for i in range(len(arrays)):
        t = arrays[i].dtype.char
        if t not in _type_conv:
            t = 'd'
        ordering.append((t,i))
    if ordering:
        ordering.sort()
        required_prefix = _type_conv[ordering[0][0]]
    else:
        required_prefix = 'd'
    # Some routines may require special treatment.
    # Handle them here before the default lookup.

    # Default lookup:
    if ordering and has_column_major_storage(arrays[ordering[0][1]]):
        suffix1,suffix2 = '_c','_r'
    else:
        suffix1,suffix2 = '_r','_c'

    funcs = []
    for name in names:
        func_name = required_prefix + name
        func = getattr(_flinalg,func_name+suffix1,
                       getattr(_flinalg,func_name+suffix2,None))
        funcs.append(func)
    return tuple(funcs)

Name	Size	Permission
__pycache__	---	0755
tests	---	0755
__init__.py	6351 bytes	0644
_calc_lwork.cpython-35m-x86_64-linux-gnu.so	56296 bytes	0755
_cblas.cpython-35m-x86_64-linux-gnu.so	41224 bytes	0755
_clapack.cpython-35m-x86_64-linux-gnu.so	68984 bytes	0755
_cython_signature_generator.py	8369 bytes	0644
_cython_wrapper_generators.py	23463 bytes	0644
_decomp_polar.py	3623 bytes	0644
_decomp_qz.py	12986 bytes	0644
_decomp_update.cpython-35m-x86_64-linux-gnu.so	307856 bytes	0755
_expm_frechet.py	12182 bytes	0644
_fblas.cpython-35m-x86_64-linux-gnu.so	388576 bytes	0755
_flapack.cpython-35m-x86_64-linux-gnu.so	934896 bytes	0755
_flinalg.cpython-35m-x86_64-linux-gnu.so	70744 bytes	0755
_interpolative.cpython-35m-x86_64-linux-gnu.so	584544 bytes	0755
_interpolative_backend.py	44935 bytes	0644
_matfuncs_inv_ssq.py	28050 bytes	0644
_matfuncs_sqrtm.py	5867 bytes	0644
_procrustes.py	2375 bytes	0644
_solve_toeplitz.cpython-35m-x86_64-linux-gnu.so	183728 bytes	0755
_solvers.py	10185 bytes	0644
_testutils.py	1814 bytes	0644
basic.py	39332 bytes	0644
blas.py	6855 bytes	0644
calc_lwork.py	666 bytes	0644
cython_blas.cpython-35m-x86_64-linux-gnu.so	204424 bytes	0755
cython_blas.pxd	14416 bytes	0644
cython_lapack.cpython-35m-x86_64-linux-gnu.so	574600 bytes	0755
cython_lapack.pxd	169411 bytes	0644
decomp.py	31223 bytes	0644
decomp_cholesky.py	9601 bytes	0644
decomp_lu.py	5796 bytes	0644
decomp_qr.py	12675 bytes	0644
decomp_schur.py	8375 bytes	0644
decomp_svd.py	7226 bytes	0644
flinalg.py	1727 bytes	0644
interpolative.py	31146 bytes	0644
lapack.py	8103 bytes	0644
linalg_version.py	159 bytes	0644
matfuncs.py	19939 bytes	0644
misc.py	5881 bytes	0644
setup.py	5888 bytes	0644
special_matrices.py	29225 bytes	0644

Name

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__pycache__

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0755