ENH: automatically show last cell output

Author: davidesarra

README.md

@@ -37,7 +37,7 @@ Reloading the extension will remove all spaces.
 ```python
 %%space <space-name>
 alpha = 0.50
-print(alpha)
+alpha
 ```
 
 When you execute a cell within a space, all references are firstly searched in
@@ -51,33 +51,6 @@ execution equivalent to not using such keyword.
 Mutable objects in the user namespace can be altered (e.g. appending an item
 to a list).
 
-#### Console output
-
-Conversely to the standard usage of the Python console, you need to print
-objects explicitly (e.g. by using `print`).
-
-- No output to console
-    ```python
-    %%space <space-name>
-    100
-    ```
-- Output to console
-    ```python
-    %%space <space-name>
-    print(100)
-    ```
-
-If you want IPython to use more advanced representations, you can do so via
-IPython's display library (e.g. display a Pandas dataframe as a HTML table).
-
-```python
-%%space <space-name>
-from IPython.display import display
-from pandas import DataFrame
-dataframe = DataFrame(data=[[1, 2]])
-display(dataframe)
-```
-
 ### Remove a space
 
 ```python

jupyter_spaces/space.py

@@ -1,3 +1,6 @@
+import ast
+import sys
+
 from jupyter_spaces.errors import RegistryError
 
 
@@ -101,7 +104,16 @@ def execute(self, source):
         Args:
             source (str): Source code.
         """
-        exec(source, self._execution_namespace)
+        tree = ast.parse(source=source)
+
+        interactive_tree = ast.Interactive(body=tree.body)
+        if sys.version_info > (3, 8):
+            interactive_tree.type_ignores = tree.type_ignores
+
+        compiled_interactive_tree = compile(
+            source=interactive_tree, filename="<string>", mode="single"
+        )
+        exec(compiled_interactive_tree, self._execution_namespace)
 
 
 class ExecutionNamespace(dict):

tests/test_magics.py

@@ -152,6 +152,11 @@ def test_get_spaces_reflects_extension_reload(ip):
     assert not ip.user_global_ns["spaces"]
 
 
+def test_space_outputs_to_console(ip, capsys):
+    ip.run_cell_magic(magic_name="space", line="tomato", cell="100")
+    assert capsys.readouterr().out == "100\n"
+
+
 def test_space_can_print_to_console(ip):
     with capture_output() as captured:
         ip.run_cell_magic(magic_name="space", line="tomato", cell="print(100)")