updated __init__ files so they're compliant with flake8 3.7.5

Author: harpolea

.flake8

@@ -1,4 +1,4 @@
 [flake8]
 max-line-length = 120
-ignore = E126, E127, E128, E129, E226, E241, E265, E741, F403, W504
+ignore = E126, E127, E128, E129, E226, E241, E265, E741, F401, F403, W504
 exclude = docs/,lm_combustion,radhydro

advection/__init__.py

@@ -4,4 +4,4 @@
 """
 
 __all__ = ['simulation']
-from .simulation import *
+from .simulation import Simulation

advection_fv4/__init__.py

@@ -6,4 +6,4 @@
 """
 
 __all__ = ['simulation']
-from .simulation import *
+from .simulation import Simulation

advection_nonuniform/__init__.py

@@ -4,4 +4,4 @@
 """
 
 __all__ = ['simulation']
-from .simulation import *
+from .simulation import Simulation

advection_rk/__init__.py

@@ -4,4 +4,4 @@
 """
 
 __all__ = ['simulation']
-from .simulation import *
+from .simulation import Simulation

advection_weno/__init__.py

@@ -28,4 +28,4 @@
 """
 
 __all__ = ['simulation']
-from .simulation import *
+from .simulation import Simulation

compressible/__init__.py

@@ -6,4 +6,4 @@
 
 __all__ = ["simulation"]
 
-from .simulation import *
+from .simulation import Variables, Simulation, cons_to_prim, prim_to_cons

compressible/interface.py

@@ -1179,12 +1179,12 @@ def artificial_viscosity(ng, dx, dy,
     for i in range(ilo - 1, ihi + 1):
         for j in range(jlo - 1, jhi + 1):
 
-                # start by computing the divergence on the x-interface.  The
-                # x-difference is simply the difference of the cell-centered
-                # x-velocities on either side of the x-interface.  For the
-                # y-difference, first average the four cells to the node on
-                # each end of the edge, and: difference these to find the
-                # edge centered y difference.
+            # start by computing the divergence on the x-interface.  The
+            # x-difference is simply the difference of the cell-centered
+            # x-velocities on either side of the x-interface.  For the
+            # y-difference, first average the four cells to the node on
+            # each end of the edge, and: difference these to find the
+            # edge centered y difference.
             divU_x = (u[i, j] - u[i - 1, j]) / dx + \
                 0.25 * (v[i, j + 1] + v[i - 1, j + 1] -
                         v[i, j - 1] - v[i - 1, j - 1]) / dy

compressible_fv4/__init__.py

@@ -5,4 +5,4 @@
 
 __all__ = ["simulation"]
 
-from .simulation import *
+from .simulation import Simulation

compressible_react/__init__.py

@@ -6,4 +6,4 @@
 """
 __all__ = ["simulation"]
 
-from .simulation import *
+from .simulation import Simulation