Merge branch 'isort' into 'NIFTy_7'

Apply isort to whole repository

See merge request ift/nifty!649

demos/custom_nonlinearities.py

@@ -14,9 +14,10 @@
 # Copyright(C) 2021 Max-Planck-Society
 # Author: Philipp Arras
 
-import nifty7 as ift
 import numpy as np
 
+import nifty7 as ift
+
 # In NIFTy, users can add hand-crafted point-wise nonlinearities that are then
 # available for `Field`, `MultiField`, `Linearization` and `Operator`. This
 # guide illustrates how this is done.

demos/parametric_variational_inference.py

@@ -29,9 +29,9 @@
 ###############################################################################
 
 import numpy as np
+from matplotlib import pyplot as plt
 
 import nifty7 as ift
-from matplotlib import pyplot as plt
 
 ift.random.push_sseq_from_seed(27)
 

src/domains/lm_space.py

@@ -116,9 +116,11 @@ class LMSpace(StructuredDomain):
             colatitude in radians, and return the kernel amplitude at that
             colatitude.
         """
-        from .gl_space import GLSpace
-        from ..operators.harmonic_operators import HarmonicTransformOperator
         from ducc0.misc import GL_thetas
+
+        from ..operators.harmonic_operators import HarmonicTransformOperator
+        from .gl_space import GLSpace
+
         # define azimuthally symmetric spaces for kernel transform
         gl = GLSpace(self.lmax + 1, 1)
         lm0 = gl.get_default_codomain()

src/library/nft.py

@@ -59,7 +59,7 @@ class Gridder(LinearOperator):
         self._eps = float(eps)
 
     def apply(self, x, mode):
-        from ducc0.wgridder import ms2dirty, dirty2ms
+        from ducc0.wgridder import dirty2ms, ms2dirty
         self._check_input(x, mode)
         freq = np.array([speed_of_light])
         x = x.val

src/linearization.py

@@ -356,8 +356,8 @@ class Linearization(Operator):
         The Jacobian has an empty input domain, i.e. its matrix representation
         has 0 columns.
         """
-        from .operators.simple_linear_operators import NullOperator
         from .multi_domain import MultiDomain
+        from .operators.simple_linear_operators import NullOperator
         return Linearization(
             field, NullOperator(MultiDomain.make({}), field.domain),
             want_metric=want_metric)
@@ -387,8 +387,8 @@ class Linearization(Operator):
         -----
         The Jacobian is square.
         """
-        from .operators.scaling_operator import ScalingOperator
         from .operators.block_diagonal_operator import BlockDiagonalOperator
+        from .operators.scaling_operator import ScalingOperator
         if len(constants) == 0:
             return Linearization.make_var(field, want_metric)
         else:

src/minimization/energy_adapter.py

@@ -18,12 +18,12 @@
 import numpy as np
 
 from .. import random
+from ..domain_tuple import DomainTuple
 from ..linearization import Linearization
 from ..minimization.energy import Energy
-from ..utilities import myassert, allreduce_sum
 from ..multi_domain import MultiDomain
 from ..sugar import from_random
-from ..domain_tuple import DomainTuple
+from ..utilities import allreduce_sum, myassert
 
 
 class EnergyAdapter(Energy):

src/minimization/kl_energies.py

@@ -16,28 +16,28 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import numpy as np
 from functools import reduce
 
-from .. import random
-from .. import utilities
+import numpy as np
+
+from .. import random, utilities
 from ..domain_tuple import DomainTuple
 from ..linearization import Linearization
 from ..multi_field import MultiField
-from ..operators.inversion_enabler import InversionEnabler
+from ..operators.adder import Adder
 from ..operators.endomorphic_operator import EndomorphicOperator
-from ..operators.energy_operators import StandardHamiltonian, GaussianEnergy
-from ..operators.sandwich_operator import SandwichOperator
+from ..operators.energy_operators import GaussianEnergy, StandardHamiltonian
+from ..operators.inversion_enabler import InversionEnabler
 from ..operators.sampling_enabler import SamplingDtypeSetter
+from ..operators.sandwich_operator import SandwichOperator
 from ..operators.scaling_operator import ScalingOperator
-from .energy_adapter import EnergyAdapter
-from .quadratic_energy import QuadraticEnergy
 from ..probing import approximation2endo
 from ..sugar import makeOp
-from ..operators.adder import Adder
 from ..utilities import myassert
+from .descent_minimizers import ConjugateGradient, DescentMinimizer
 from .energy import Energy
-from .descent_minimizers import DescentMinimizer, ConjugateGradient
+from .energy_adapter import EnergyAdapter
+from .quadratic_energy import QuadraticEnergy
 
 
 def _get_lo_hi(comm, n_samples):
@@ -48,9 +48,9 @@ def _get_lo_hi(comm, n_samples):
 def _modify_sample_domain(sample, domain):
     """Takes only keys from sample which are also in domain and inserts zeros
     for keys which are not in sample.domain."""
-    from ..multi_domain import MultiDomain
-    from ..field import Field
     from ..domain_tuple import DomainTuple
+    from ..field import Field
+    from ..multi_domain import MultiDomain
     from ..sugar import makeDomain
     domain = makeDomain(domain)
     if isinstance(domain, DomainTuple) and isinstance(sample, Field):

src/minimization/scipy_minimizer.py

@@ -155,7 +155,9 @@ class _ScipyCG(Minimizer):
         self._maxiter = maxiter
 
     def __call__(self, energy, preconditioner=None):
-        from scipy.sparse.linalg import LinearOperator as scipy_linop, cg
+        from scipy.sparse.linalg import LinearOperator as scipy_linop
+        from scipy.sparse.linalg import cg
+
         from .quadratic_energy import QuadraticEnergy
         if not isinstance(energy, QuadraticEnergy):
             raise ValueError("need a quadratic energy for CG")

src/minimization/stochastic_minimizer.py

@@ -15,8 +15,8 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-from .minimizer import Minimizer
 from .energy import Energy
+from .minimizer import Minimizer
 
 
 class ADVIOptimizer(Minimizer):

src/operators/energy_operators.py

@@ -25,13 +25,13 @@ from ..multi_domain import MultiDomain
 from ..multi_field import MultiField
 from ..sugar import makeDomain, makeOp
 from ..utilities import myassert
+from .adder import Adder
 from .linear_operator import LinearOperator
 from .operator import Operator
-from .adder import Adder
 from .sampling_enabler import SamplingDtypeSetter, SamplingEnabler
-from .scaling_operator import ScalingOperator
 from .sandwich_operator import SandwichOperator
-from .simple_linear_operators import VdotOperator, FieldAdapter
+from .scaling_operator import ScalingOperator
+from .simple_linear_operators import FieldAdapter, VdotOperator
 
 
 def _check_sampling_dtype(domain, dtypes):

src/operators/multifield2vector.py

@@ -17,9 +17,9 @@
 
 import numpy as np
 
-from ..multi_domain import MultiDomain
 from ..domain_tuple import DomainTuple
 from ..domains.unstructured_domain import UnstructuredDomain
+from ..multi_domain import MultiDomain
 from ..sugar import makeField
 from .linear_operator import LinearOperator
 

src/operators/sum_operator.py

@@ -46,8 +46,8 @@ class SumOperator(LinearOperator):
 
     @staticmethod
     def simplify(ops, neg):
-        from .scaling_operator import ScalingOperator
         from .diagonal_operator import DiagonalOperator
+        from .scaling_operator import ScalingOperator
 
         # unpack SumOperators
         opsnew = []

src/plot.py

@@ -206,8 +206,8 @@ def _register_cmaps():
     except AttributeError:
         _register_cmaps._cmaps_registered = True
 
-    from matplotlib.colors import LinearSegmentedColormap
     import matplotlib.pyplot as plt
+    from matplotlib.colors import LinearSegmentedColormap
     planckcmap = {'red':   ((0., 0., 0.), (.4, 0., 0.), (.5, 1., 1.),
                             (.7, 1., 1.), (.8, .83, .83), (.9, .67, .67),
                             (1., .5, .5)),

src/sugar.py

@@ -32,8 +32,8 @@ from .operators.diagonal_operator import DiagonalOperator
 from .operators.distributors import PowerDistributor
 from .operators.operator import Operator
 from .operators.sampling_enabler import SamplingDtypeSetter
-from .operators.selection_operators import SliceOperator
 from .operators.scaling_operator import ScalingOperator
+from .operators.selection_operators import SliceOperator
 from .plot import Plot
 
 __all__ = ['PS_field', 'power_analyze', 'create_power_operator',
@@ -473,10 +473,10 @@ def get_default_codomain(domainoid, space=None):
         Optional index of the subdomain to be replaced by its default
         codomain. `domain[space]` must be of class `RGSpace`.
     """
-    from .domains.rg_space import RGSpace
-    from .domains.hp_space import HPSpace
     from .domains.gl_space import GLSpace
+    from .domains.hp_space import HPSpace
     from .domains.lm_space import LMSpace
+    from .domains.rg_space import RGSpace
     if isinstance(domainoid, RGSpace):
         return domainoid.get_default_codomain()
     if not isinstance(domainoid, DomainTuple):
@@ -558,8 +558,8 @@ def calculate_position(operator, output):
     from .minimization.descent_minimizers import NewtonCG
     from .minimization.iteration_controllers import GradientNormController
     from .minimization.kl_energies import MetricGaussianKL
-    from .operators.scaling_operator import ScalingOperator
     from .operators.energy_operators import GaussianEnergy, StandardHamiltonian
+    from .operators.scaling_operator import ScalingOperator
     if not isinstance(operator, Operator):
         raise TypeError
     if output.domain != operator.target:

test/test_energy_gradients.py

@@ -15,10 +15,11 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import nifty7 as ift
 import numpy as np
 import pytest
 
+import nifty7 as ift
+
 from .common import list2fixture, setup_function, teardown_function
 
 spaces = [ift.GLSpace(5),

test/test_extra.py

@@ -14,15 +14,15 @@
 # Copyright(C) 2021 Max-Planck-Society
 # Author: Philipp Arras
 
+from time import time
+
 import numpy as np
 import pytest
 
 import nifty7 as ift
-from time import time
 
 from .common import list2fixture, setup_function, teardown_function
 
-
 pmp = pytest.mark.parametrize
 
 

test/test_operators/test_adjoint.py

@@ -15,10 +15,11 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import nifty7 as ift
 import numpy as np
 import pytest
 
+import nifty7 as ift
+
 from ..common import list2fixture, setup_function, teardown_function
 
 _h_RG_spaces = [ift.RGSpace(7, distances=0.2, harmonic=True),

test/test_operators/test_diagonal_selector.py

@@ -15,12 +15,13 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import nifty7 as ift
 import numpy as np
 import pytest
-from nifty7.library.variational_models import DiagonalSelector
 from numpy.testing import assert_allclose
 
+import nifty7 as ift
+from nifty7.library.variational_models import DiagonalSelector
+
 from ..common import list2fixture, setup_function, teardown_function
 
 pmp = pytest.mark.parametrize

test/test_operators/test_gaussian_entropy.py

@@ -15,12 +15,13 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import nifty7 as ift
 import numpy as np
 import pytest
-from nifty7.library.variational_models import GaussianEntropy
 from numpy.testing import assert_allclose
 
+import nifty7 as ift
+from nifty7.library.variational_models import GaussianEntropy
+
 from ..common import list2fixture, setup_function, teardown_function
 
 pmp = pytest.mark.parametrize

test/test_operators/test_lower_triangular_inserter.py

@@ -15,12 +15,13 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-import nifty7 as ift
 import numpy as np
 import pytest
-from nifty7.library.variational_models import LowerTriangularInserter
 from numpy.testing import assert_allclose
 
+import nifty7 as ift
+from nifty7.library.variational_models import LowerTriangularInserter
+
 from ..common import list2fixture, setup_function, teardown_function
 
 pmp = pytest.mark.parametrize