Move Python API into openmc/ directory and move Python scripts into scripts/

directory.

openmc/executor.py

@@ -0,0 +1,83 @@
+import subprocess
+import os
+
+from openmc.checkvalue import *
+
+
+class Executor(object):
+
+
+    def __init__(self):
+        self._working_directory = '.'
+
+
+    def _run_openmc(self, command, output):
+
+        # Launch a subprocess to run OpenMC
+        p = subprocess.Popen(command, shell=True, 
+                             cwd=self._working_directory,
+                             stdout=subprocess.PIPE)
+
+        # Capture and re-print OpenMC output in real-time
+        while (True and output):
+            line = p.stdout.readline()
+            print(line),
+
+            # If OpenMC is finished, break loop
+            if line == '' and p.poll() != None:
+                break
+
+
+    @property
+    def working_directory(self):
+        return self._working_directory
+
+
+    @working_directory.setter
+    def working_directory(self, working_directory):
+
+        if not is_string(working_directory):
+            msg = 'Unable to set Executor\'s working directory to {0} ' \
+                  'since it is not a string'.format(working_directory)
+            raise ValueError(msg)
+
+        elif not os.path.isdir(working_directory):
+            msg = 'Unable to set Executor\'s working directory to {0} ' \
+                  'which does not exist'.format(working_directory)
+            raise ValueError(msg)
+
+        self._working_directory = working_directory
+
+
+    def plot_geometry(self, output=True):
+        self._run_openmc('openmc -p', output)
+
+
+    def run_simulation(self, particles=None, threads=None,
+                       geometry_debug=False, restart_file=None,
+                       tracks=False, mpi_procs=1, output=True):
+
+        post_args = ' '
+        pre_args = ''
+
+        if is_integer(particles) and particles > 0:
+            post_args += '-n {0} '.format(particles)
+
+        if is_integer(threads) and threads > 0:
+            post_args += '-s {0} '.format(threads)
+
+        if geometry_debug:
+            post_args += '-g '
+
+        if is_string(restart_file):
+            post_args += '-r {0} '.format(restart_file)
+
+        if tracks:
+            post_args += '-t'
+
+        if is_integer(mpi_procs) and mpi_procs > 1:
+            pre_args += 'mpirun -n {0} '.format(mpi_procs)
+
+        command = pre_args + 'openmc ' + post_args
+
+        self._run_openmc(command, output)