Fix 'python-info-docstring-p' bug in the 2nd line of a buffer

* lisp/progmodes/python.el (python-info-docstring-p): Add
'looking-at-p' check when bobp.
* test/lisp/progmodes/python-tests.el (python-font-lock-operator-1)
(python-font-lock-operator-2): Restoration of ERTs deleted by
mistake.
(python-font-lock-escape-sequence-bytes-newline)
(python-font-lock-escape-sequence-hex-octal)
(python-font-lock-escape-sequence-unicode)
(python-font-lock-raw-escape-sequence): Change 'font-lock-doc-face'
to 'font-lock-string-face' and remove :expected-result :failed.
(python-info-docstring-p-8): New test.  (Bug#68284)

1 files changed, 3 insertions, 1 deletions

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 1148da11a06..a44d4215d7c 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -6260,7 +6260,9 @@ point's current `syntax-ppss'."
                 counter)))
         (python-util-forward-comment -1)
         (python-nav-beginning-of-statement)
-        (cond ((bobp))
+        (cond ((and (bobp) (save-excursion
+                             (python-util-forward-comment)
+                             (looking-at-p re))))
               ((python-info-assignment-statement-p) t)
               ((python-info-looking-at-beginning-of-defun))
               (t nil))))))