Add compile before exec to get clean backtrace

fwk/wutils.py

 # -*- coding: utf-8 -*-
 
 # Copyright 2020 University of Liège
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #     http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -96,7 +96,7 @@ def findbins(modname, dirB=['build','wavesB'], verb=False): # changer wavesB en
         print("[findbins] looking for linux/mingw libs")
     libpath.append( os.path.join(spath, 'bin') ) # also for win-mingw
 
-	# check the paths one by one
+    # check the paths one by one
     for p in libpath:
         if os.path.isdir(p):
             if verb:
@@ -156,12 +156,12 @@ def initMKL(verb=False):
     # Display variables
     if verb:
         for s in ['OMP', 'MKL', 'KMP']:
-            print('* %s environment:' % s)        
+            print('* %s environment:' % s)
             for key, value in os.environ.items():
                 if s in key:
                     print('    %s = %s' % (key, value))
     print('')
-  
+
 # ------------------------------------------------------------------------------
 
 def setupwdir(testname):
@@ -183,7 +183,7 @@ def setupwdir(testname):
         name = "noname"
     import os, os.path
 
-    # builds the name of the workspace folder       
+    # builds the name of the workspace folder
     #print "__file__=",__file__
     dir1 = os.path.abspath(os.path.dirname(__file__)+os.sep+"..")+os.sep
     print("dir1=",dir1)
@@ -193,7 +193,7 @@ def setupwdir(testname):
     resdir = testname[len(common):].replace(os.sep,"_")
     resdir = os.path.splitext(resdir)[0] # remove ".py"
     if siz>1:
-        # append the mpi size if mpi is used 
+        # append the mpi size if mpi is used
         # (so that the same test can be run concurrently with
         # sevral mpi sizes in ctest)
         resdir += "_mpi%d" % siz
@@ -215,10 +215,10 @@ def setupwdir(testname):
                     os.remove(fpth)
                 elif os.path.isdir(fpth):
                     shutil.rmtree(fpth)
-        
+
     if siz>1: # if multiple process => send sync to slaves.
         comm.Barrier()
-    
+
     # we can now safely go into the new folder
     os.chdir(wdir)
 
@@ -300,4 +300,5 @@ def run():
     print("starting test", testname)
     print("time:", time.strftime("%c"))
     print("hostname:", socket.gethostname())
-    exec(open(testname, 'r', encoding='utf8').read(), globals(), globals()) # exec at global level!!
+    script = open(testname, 'r', encoding='utf-8').read()
+    exec(compile(script, testname, 'exec'), {'__file__': testname, '__name__':'__main__'}) # compile to get clean backtrace