warn rather than fail on plotting invalid data; have xye import fail on error rather that use partial dataset

Author: briantoby

GSASII/GSASIIpwdplot.py

@@ -1990,7 +1990,11 @@ def onPartialConfig(event):
     Ymax = None
     for ip,Pattern in enumerate(PlotList):
         xye = Pattern[1]
-        xye = np.nan_to_num(xye)
+        try:
+            xye = np.nan_to_num(xye)
+        except ValueError:
+            print('Error in diffraction pattern',ip,'skipping plot')
+            continue
         if xye[1] is None: continue
         if Ymax is None: Ymax = max(xye[1])
         Ymax = max(Ymax,max(xye[1]))

GSASII/imports/G2pwd_xye.py

@@ -180,17 +180,15 @@ def Reader(self,filename, ParentFrame=None, **unused):
                     y.append(float(vals[1]))
                     w.append(1.0/float(vals[1]))
             except ValueError:
-                msg = 'Error parsing number in line '+str(i+1)
+                self.errors = f'Error parsing number in line {i+1}\n{S.strip()}'
                 if GSASIIpath.GetConfigValue('debug'):
-                    print (msg)
-                    print (S.strip())
-                break
+                    print (self.errors)
+                return False
             except:
-                msg = 'Error in line '+str(i+1)
+                self.errors = f'Error processing line {i+1}\n{S.strip()}'
                 if GSASIIpath.GetConfigValue('debug'):
-                    print (msg)
-                    print (S.strip())
-                break
+                    print (self.errors)
+                return False
         N = len(x)
         if N == 0: return False
         x = np.array(x)