grass.jupyter: importing display function from IPython.display

.pylintrc

@@ -654,3 +654,4 @@ min-public-methods=1
 # "BaseException, Exception".
 overgeneral-exceptions=BaseException,
                        Exception
+

python/grass/jupyter/map.py

@@ -189,9 +189,11 @@ def wrapper(**kwargs):
     def show(self):
         """Displays a PNG image of map"""
         # Lazy import to avoid an import-time dependency on IPython.
-        from IPython.display import Image  # pylint: disable=import-outside-toplevel
-
-        return Image(self._filename)
+        from IPython.display import (
+            Image,
+            display,  # pylint: disable=import-outside-toplevel
+        )
+        display(Image(self._filename))
 
     def save(self, filename):
         """Saves a PNG image of map to the specified *filename*"""

python/grass/jupyter/map3d.py

@@ -229,6 +229,8 @@ def render(self, **kwargs):
     def show(self):
         """Displays a PNG image of map"""
         # Lazy import to avoid an import-time dependency on IPython.
-        from IPython.display import Image  # pylint: disable=import-outside-toplevel
-
-        return Image(self._filename)
+        from IPython.display import (
+            Image,
+            display,
+        )  # pylint: disable=import-outside-toplevel
+        display(Image(self._filename))