csfile.py: capture error in case of illegal hash type

csfile.py

@@ -53,6 +53,8 @@
 #                     the end time
 # 01/08/2019  V0.6.6  (thof) let getSubDirectories produce a reasonable error
 #                     message, if application of a regex fails
+#             V0.6.7  (thof) capture problem with whitespace in file names
+#                     which results in not accepted hash types
 #
 # =============================================================================
 """ CsFile module to handle checksumfiles. """
@@ -70,7 +72,7 @@ from datetime import date
 import csbacklog
 import csbackErrorCodes as eCodes
 
-__version__ = "V0.6.6"
+__version__ = "V0.6.7"
 __subversion__ = "$Id$"
 __license__ = "GPLv2+"
 __author__ = "Daniel Armbruster"
@@ -495,7 +497,14 @@ class CsLine:
     located in src. In case no data file was found in src an CsFileError
     exception will be thrown.
     """
-    hashfunc = hashlib.new(self.hashfunc)
+    try:
+      hashfunc = hashlib.new(self.hashfunc)
+    except:
+      raise CsFileError(("When evaluating checksum file entry\n  in directory %s\n"
+       +"  hash type '%s' as specified for file '%s' is not accepted\n"
+       +"  consider a problem with whitespace in file names\n"
+       +"  the respective checksum file entry is\n"
+       +"  %s") % (self.srcdir, self.hashfunc, self.filename, self), eCodes.GLOBAL_UnhandledException)
     blockSize = chunkSize * hashfunc.block_size
     path = os.path.join(self.srcdir, self.filename)
     try: