593 logging error (#594)

* #593: updated log messages to use f-strings.

* #593: removerd int casting.

closes #593

---------

Co-authored-by: Walter Simson <walter.a.simson@gmail.com>

Author: precicely

kwave/kWaveSimulation_helper/expand_grid_matrices.py

@@ -262,11 +262,11 @@ def print_grid_size(kgrid):
     """
     k_Nx, k_Ny, k_Nz = kgrid.Nx, kgrid.Ny, kgrid.Nz
     if kgrid.dim == 1:
-        logging.log(logging.INFO, "  computational grid size:", int(k_Nx), "grid points")
+        logging.log(logging.INFO, f"  computational grid size: {k_Nx} grid points")
     elif kgrid.dim == 2:
-        logging.log(logging.INFO, "  computational grid size:", int(k_Nx), "by", int(k_Ny), "grid points")
+        logging.log(logging.INFO, f"  computational grid size: {k_Nx} by {k_Ny} grid points")
     elif kgrid.dim == 3:
-        logging.log(logging.INFO, "  computational grid size:", int(k_Nx), "by", int(k_Ny), "by", int(k_Nz), "grid points")
+        logging.log(logging.INFO, f"  computational grid size: {k_Nx} by {k_Ny} by {k_Nz} grid points")
 
 
 def expand_cuboid_corner_list(is_cuboid_list, kgrid, pml_size: Vector):

kwave/kWaveSimulation_helper/save_to_disk_func.py

@@ -18,7 +18,7 @@ def save_to_disk_func(
     kgrid: kWaveGrid, medium: kWaveMedium, source, opt: SimulationOptions, auto_chunk: bool, values: dotdict, flags: dotdict
 ):
     # update command line status
-    logging.log(logging.INFO, "  precomputation completed in ", scale_time(TicToc.toc()))
+    logging.log(logging.INFO, f"  precomputation completed in {scale_time(TicToc.toc())}")
     TicToc.tic()
     logging.log(logging.INFO, "  saving input files to disk...")
 
@@ -66,7 +66,7 @@ def save_to_disk_func(
     save_file(opt.input_filename, integer_variables, float_variables, opt.hdf_compression_level, auto_chunk=auto_chunk)
 
     # update command line status
-    logging.log(logging.INFO, "  completed in ", scale_time(TicToc.toc()))
+    logging.log(logging.INFO, f"  completed in {scale_time(TicToc.toc())}")
 
 
 def grab_integer_variables(integer_variables, kgrid, flags, medium):