run-python: Make the buffer running python current

* lisp/progmodes/python.el (run-python, python-shell-make-comint):
Make the buffer running the inferior python process the current buffer
(Bug#31398).
* test/lisp/progmodes/python-tests.el (python-tests--bug31398):
Add test.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/lisp/progmodes/python-tests.el b/test/lisp/progmodes/python-tests.el
index 4955da02a25..dd1c45914e2 100644
--- a/test/lisp/progmodes/python-tests.el
+++ b/test/lisp/progmodes/python-tests.el
@@ -5352,6 +5352,14 @@ buffer with overlapping strings."
                     (python-nav-end-of-statement)))
     (should (eolp))))
 
+;; After call `run-python' the buffer running the python process is current.
+(ert-deftest python-tests--bug31398 ()
+  "Test for https://debbugs.gnu.org/31398 ."
+  (let ((buffer (process-buffer (run-python nil nil 'show))))
+    (should (eq buffer (current-buffer)))
+    (pop-to-buffer (other-buffer))
+    (run-python nil nil 'show)
+    (should (eq buffer (current-buffer)))))
 
 (provide 'python-tests)