erp5_jupyter: bugfix in ImportFixer to handle `import lib as name` cases

The ImportFixer AST processor wasn't correctly handling the alias
for imports. Now it takes them into consideration correctly. A test
to cover this case was added.

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

@@ -667,7 +667,11 @@ class ImportFixer(ast.NodeTransformer):
     for child in node.body:
       if isinstance(child, ast.Import):
         for alias in child.names:
-          self.import_func_dict[alias.name] = node.name  
+          if getattr(alias, 'asname'):
+            import_name = alias.asname
+          else:
+            import_name = alias.name
+          self.import_func_dict[import_name] = node.name  
     return self.generic_visit(node)
     
   def visit_ImportFrom(self, node):

bt5/erp5_data_notebook/TestTemplateItem/portal_components/test.erp5.testExecuteJupyter.py

@@ -677,6 +677,34 @@ print random.randint(1,1)
     self.assertTrue(error_substring in result)
     self.assertTrue('second argument' in result)
     
+  def testImportFixerWithAlias(self):
+    self.login('dev_user')
+    import_code = '''
+import random as rand
+'''
+
+    reference = 'Test.Notebook.EnvironmentObject.ImportFixer'
+    result = self.portal.Base_executeJupyter(
+      reference=reference,
+      python_expression=import_code
+    )
+    
+    self.tic()
+    self.assertEquals(json.loads(result)['status'], 'ok')
+    
+    jupyter_code = '''
+print rand.randint(1,1)
+'''
+    result = self.portal.Base_executeJupyter(
+      reference=reference,
+      python_expression=jupyter_code
+    )
+    
+    self.tic()
+    result = json.loads(result)
+    self.assertEquals(result['status'], 'ok')
+    self.assertEquals(result['code_result'].strip(), '1')  
+
   def testPivotTableJsIntegration(self):
     '''
       This test ensures the PivotTableJs user interface is correctly integrated