Changes to props package listener function signatures; a useful little

trace utility for debugging

fsl/tools/bet.py

@@ -59,7 +59,7 @@ class Options(props.HasProperties):
     zCoordinate          = props.Int(default=0, minval=0)
 
 
-    def setOutputImage(self, value, valid, ctx):
+    def setOutputImage(self, value, valid, *a):
         """
         When a (valid) input image file name is selected, the output
         image is set to the same name, with a suffix of '_brain'.
@@ -70,7 +70,7 @@ class Options(props.HasProperties):
         self.outputImage = value + '_brain'
 
         
-    def clearT2Image(self, value, valid, ctx):
+    def clearT2Image(self, value, *a):
         """
         This is a bit of a hack. If the user provides an invalid value
         for the T2 image (when running bet with the -A2 flag), but then

fsl/utils/trace.py

+#!/usr/bin/env python
+#
+# trace.py -
+#
+# Author: Paul McCarthy <pauldmccarthy@gmail.com>
+#
+
+import logging
+import inspect
+
+log = logging.getLogger(__name__)
+
+def trace(desc):
+
+    stack = inspect.stack()[1:]
+    lines = '{}\n'.format(desc)
+
+    for i, frame in enumerate(stack):
+
+        srcMod    = frame[1]
+        srcLineNo = frame[2]
+
+        if frame[4] is not None: srcLine = frame[4][frame[5]]
+        else:                    srcLine = '<native>'
+
+        lines = lines + '{}{}:{}: {}\n'.format(
+            ' ' * (i + 1),
+            srcMod, srcLineNo,
+            srcLine.strip())
+
+    log.debug(lines)