__init__ of damask package not crashing in python 2.5 if core module not available

added some Matlab-like utility functions (damask.sind, cosd, tand, acosd, ...)  that take and return degree instead of radians

lib/damask/__init__.py

@@ -9,7 +9,12 @@ from .result      import Result           # one class with subclasses
 from .geometry    import Geometry         # one class with subclasses
 from .solver      import Solver           # one class with subclasses
 from .test        import Test
+from util import *
+
 try:
   from .          import core
-except Exception, e:
+except ImportError:
-  sys.stderr.write('\nWARNING: Core module (Fortran code) not available, try to run setup_processing.py\nError Message when importing core.so: %s\n\n'%e)
+  sys.stderr.write('\nWARNING: Core module (Fortran code) not available, try to run setup_processing.py\nError Message when importing core.so: \n\n')
+  core = None # from http://www.python.org/dev/peps/pep-0008/
+  
+  

lib/damask/util.py

@@ -0,0 +1,22 @@
+# some utility functions
+import math 
+try:
+  import numpy
+except:
+  numpy=None
+
+  
+
+
+
+
+for f in ['cos', 'sin', 'tan']:
+    exec('def %sd(deg): return ((numpy or math).%s(deg/180.*math.pi))'%(f,f))
+    if numpy:
+      exec('def a%sd(val): return (numpy.arc%s(val)*180./math.pi)'%(f,f))
+    else:  
+      exec('def a%sd(val): return (math.a%s(val)*180./math.pi)'%(f,f))
+# Matlab like functions to allow for cosd(degree),...
+# it is open how these compare to the numpy.cos, which can operate on arrays
+# ->full array compatibility can be achieved through numpy.deg2rad|rad2deg
+