style: fix linting errors

Author: alecksphillips

discretesampling/base/algorithms/mcmc.py

@@ -1,7 +1,6 @@
 import math
 import copy
 from tqdm.auto import tqdm
-import numpy as np
 from discretesampling.base.random import RNG
 from discretesampling.base.output import MCMCOutput
 
@@ -65,4 +64,4 @@ def sample(self, N, N_warmup=None, seed=0, include_warmup=True, verbose=True):
 
         results = MCMCOutput(samples, acceptance_probabilities, include_warmup, N, N_warmup)
         progress_bar.close()
-        return
+        return results

discretesampling/base/output/__init__.py

@@ -1,3 +1,3 @@
-from .base import BaseOutput  # no qa
-from .smc_output import SMCOutput  # no qa
-from .mcmc_output import MCMCOutput  # no qa
+from .base import BaseOutput  # noqa
+from .smc_output import SMCOutput  # noqa
+from .mcmc_output import MCMCOutput  # noqa

tests/test_smc.py

@@ -1,7 +1,6 @@
 import pytest
 import numpy as np
 from discretesampling.base.algorithms import DiscreteVariableSMC
-from discretesampling.base.util import gather_all
 from discretesampling.base.executor.executor_MPI import Executor_MPI
 from discretesampling.domain import spectrum
 from discretesampling.base.output import SMCOutput