Fix changes linter

doc/conf.py

@@ -33,7 +33,7 @@ version = re.sub(r'(\d+\.\d+)\.\d+(.*)', r'\1\2', lbmpy.__version__)
 version = re.sub(r'(\.dev\d+).*?$', r'\1', version)
 # The full version, including alpha/beta/rc tags.
 release = lbmpy.__version__
-language = None
+language = 'en'
 exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store', '**.ipynb_checkpoints']
 default_role = 'any'
 pygments_style = 'sphinx'

lbmpy/chapman_enskog/chapman_enskog.py

@@ -370,7 +370,7 @@ def take_moments(eqn, pdf_to_moment_name=(('f', '\\Pi'), ('\\Omega f', '\\Upsilo
                 if new_f_index is None:
                     rest *= factor
                 else:
-                    assert not(new_f_index and f_index)
+                    assert not (new_f_index and f_index)
                     f_index = new_f_index
 
         moment_tuple = [0] * len(velocity_terms)

lbmpy/moment_transforms/cumulanttransforms.py

@@ -67,10 +67,10 @@ class CentralMomentsToCumulantsByGeneratingFunc(AbstractMomentTransform):
         self.cumulant_exponents = self.moment_exponents
         self.cumulant_polynomials = self.moment_polynomials
 
-        if(len(self.cumulant_exponents) != stencil.Q):
+        if len(self.cumulant_exponents) != stencil.Q:
             raise ValueError("Number of cumulant exponent tuples must match stencil size.")
 
-        if(len(self.cumulant_polynomials) != stencil.Q):
+        if len(self.cumulant_polynomials) != stencil.Q:
             raise ValueError("Number of cumulant polynomials must match stencil size.")
 
         self.central_moment_exponents = self.compute_required_central_moments()

lbmpy/moments.py

@@ -86,8 +86,8 @@ def moment_permutations(exponent_tuple):
 def moments_of_order(order, dim=3, include_permutations=True):
     """All tuples of length 'dim' which sum equals 'order'"""
     for item in __fixed_sum_tuples(dim, order, ordered=not include_permutations):
-        assert(len(item) == dim)
-        assert(sum(item) == order)
+        assert len(item) == dim
+        assert sum(item) == order
         yield item