New option --no-header

smop/main.py

@@ -1,10 +1,12 @@
 # SMOP -- Simple Matlab/Octave to Python compiler
 # Copyright 2011-2016 Victor Leikehman
 
+import py_compile
 import tempfile
 import fnmatch
 import tarfile
 import sys
+import os
 import traceback
 from os.path import basename, splitext
 
@@ -17,6 +19,8 @@
 
 
 def print_header(fp):
+    if options.no_header:
+        return
     print >> fp, "# Autogenerated with SMOP " + version.__version__
     # print >> fp, "from __future__ import division"
     print >> fp, "from smop.core import *"
@@ -90,6 +94,11 @@ def main():
                 with open(f, "w") as fp:
                     print_header(fp)
                     fp.write(s)
+                try:
+                    py_compile.compile(f,doraise=True)
+                except py_compile.PyCompileError:
+                    os.unlink(f)
+                    raise
             else:
                 fp.write(s)
         except KeyboardInterrupt:

smop/options.py

@@ -113,6 +113,11 @@
 
 #parser.add_argument("--graphviz", action="store_true")
 
+parser.add_argument("-H","--no-header",
+                    action="store_true",
+help="""use it if you plan to concatenate
+generated files.""")
+
 parser.add_argument("-C","--no-comments",
                     action="store_true",
 help="""discard multiline comments""")