Changeset 574adc7 in sasview for src/sas/sascalc/fit/expression.py

Timestamp:

Sep 22, 2017 4:01:32 PM (7 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, magnetic_scatt, release-4.2.2, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

34d7b35

Parents:

9706d88

Message:

convert sascalc to python 2/3 syntax

File:

• src/sas/sascalc/fit/expression.py (modified) (12 diffs)

src/sas/sascalc/fit/expression.py

@@ -59 +59 @@
     occur multiple times.  The return value is a set with the elements in
     no particular order.
-    
+
     This is the first step in computing a dependency graph.
     """
@@ -81 +81 @@
         offset = end
     pieces.append(expr[offset:])
-    
+
     # Join the pieces and return them
     return "".join(pieces)
@@ -88 +88 @@
     """
     Returns a list of pair-wise dependencies from the parameter expressions.
-    
+
     For example, if p3 = p1+p2, then find_dependencies([p1,p2,p3]) will
     return [(p3,p1),(p3,p2)].  For base expressions without dependencies,
@@ -110 +110 @@
     """
     Find the parameter substitution we need so that expressions can
-    be evaluated without having to traverse a chain of 
+    be evaluated without having to traverse a chain of
     model.layer.parameter.value
     """
@@ -122 +122 @@
     return definition, substitution
 
-def no_constraints(): 
+def no_constraints():
     """
     This parameter set has no constraints between the parameters.
@@ -163 +163 @@
 
     Parameter names are assumed to contain only _.a-zA-Z0-9#[]
-    
+
     Both names are provided for inverse functions, e.g., acos and arccos.
 
     Should try running the function to identify syntax errors before
     running it in a fit.
-    
+
     Use help(fn) to see the code generated for the returned function fn.
     dis.dis(fn) will show the corresponding python vm instructions.
@@ -239 +239 @@
         if independent == emptyset:
             cycleset = ", ".join(str(s) for s in left)
-            raise ValueError,"Cyclic dependencies amongst %s"%cycleset
+            raise ValueError("Cyclic dependencies amongst %s"%cycleset)
 
         # The possibly resolvable items are those that depend on the independents
@@ -267 +267 @@
         n.sort()
         items = list(items); items.sort()
-        raise Exception,"%s expect %s to contain %s for %s"%(msg,n,items,pairs)
+        raise ValueError("%s expect %s to contain %s for %s"%(msg,n,items,pairs))
     for lo,hi in pairs:
         if lo in n and hi in n and n.index(lo) >= n.index(hi):
-            raise Exception,"%s expect %s before %s in %s for %s"%(msg,lo,hi,n,pairs)
+            raise ValueError("%s expect %s before %s in %s for %s"%(msg,lo,hi,n,pairs))
 
 def test_deps():
@@ -288 +288 @@
     # Cycle test
     pairs = [(1,4),(4,3),(4,5),(5,1)]
-    try: n = order_dependencies(pairs)
-    except ValueError: pass
-    else: raise Exception,"test3 expect ValueError exception for %s"%(pairs,)
+    try:
+        n = order_dependencies(pairs)
+    except ValueError:
+        pass
+    else:
+        raise ValueError("test3 expect ValueError exception for %s"%(pairs,))
 
     # large test for gross speed check
@@ -308 +311 @@
     import inspect, dis
     import math
-    
+
     symtab = {'a.b.x':1, 'a.c':2, 'a.b':3, 'b.x':4}
     expr = 'a.b.x + sin(4*pi*a.c) + a.b.x/a.b'
-    
+
     # Check symbol lookup
     assert _symbols(expr, symtab) == set([1,2,3])
@@ -357 +360 @@
     expected = 2*math.pi*math.sin(5/.1875) + 6
     assert p2.value == expected,"Value was %s, not %s"%(p2.value,expected)
-    
+
     # Check empty dependency set doesn't crash
     fn = compile_constraints(*world(p1,p3))
@@ -381 +384 @@
     fn()
     assert p5.value == 2.07,"Value for %s was %s"%(p5.expression,p5.value)
-    
+
 
     # Verify that we capture invalid expressions
-    for expr in ['G4.cage', 'M0.cage', 'M1.G1 + *2', 
+    for expr in ['G4.cage', 'M0.cage', 'M1.G1 + *2',
                  'piddle',
                  '5; import sys; print "p0wned"',