erp5_data_notebook bt5: Close plot object and after every call to...

erp5_data_notebook bt5: Close plot object and after every call to Base_dispalyImage with matplotlib object

bt5/erp5_data_notebook/ExtensionTemplateItem/portal_components/extension.erp5.JupyterCompile.py

@@ -191,7 +191,10 @@ def Base_displayImage(self, image_object=None):
   External function to display Image objects to jupyter frontend.
 
   XXX:  This function is intented to be called from Base_executeJupyter 
-        or Jupyter frontend.That's why printing string and returning None  
+        or Jupyter frontend.That's why printing string and returning None.
+        Also, it clears the plot for Matplotlib object after every call, so
+        in case of saving the plot, its essential to call Base_savePlot before
+        calling Base_displayImage.
 
   Parameters
   ----------
@@ -228,6 +231,8 @@ def Base_displayImage(self, image_object=None):
       # Encode the value in figfile to base64 string so as to serve it jupyter frontend
       figdata = base64.b64encode(figfile.getvalue())
       mime_type = 'image/png'
+      # Clear the plot figures after every execution
+      image_object.close()
 
     # XXX: We are not returning anything because we want this function to be called
     # by Base_executeJupyter , inside exec(), and its better to get the printed string

bt5/erp5_data_notebook/ExtensionTemplateItem/portal_components/extension.erp5.JupyterCompile.xml

@@ -50,7 +50,7 @@
                 <string>W: 91,  8: Use of exec (exec-used)</string>
                 <string>W:115,  8: Use of exec (exec-used)</string>
                 <string>W:121,  8: Use of exec (exec-used)</string>
-                <string>W:213,  4: Using the global statement (global-statement)</string>
+                <string>W:216,  4: Using the global statement (global-statement)</string>
               </tuple>
             </value>
         </item>