Silence byte compiler warnings

* jupyter-org-extensions.el (jupyter-org-edit-header): Do it.

* jupyter-repl.el (jupyter-handle-error)
(jupyter-repl-interaction-mode)
(jupyter-repl-interaction-mode-line): Do it.

Author: nnicandro

jupyter-org-extensions.el

@@ -460,9 +460,12 @@ Defaults to `jupyter-org-jump-to-block-context-lines'."
     (let* ((header-start (nth 5 src-info))
            (header-end (save-excursion (goto-char header-start)
                                        (line-end-position))))
-      (setf (buffer-substring header-start header-end)
-            (read-string "Header: "
-                         (buffer-substring header-start header-end))))))
+      (let ((header (read-string "Header: "
+                                 (buffer-substring header-start header-end))))
+        (save-excursion
+          (delete-region header-start header-end)
+          (goto-char header-start)
+          (insert header))))))
 
 (defun jupyter-org-src-block-bounds ()
   "Return the region containing the current source block.

jupyter-repl.el

@@ -955,7 +955,7 @@ buffer to display TEXT."
   (when req
     (jupyter-with-message-content msg (traceback)
       (cond
-       ((eq (jupyter-message-parent-type msg) "comm_msg")
+       ((equal (jupyter-message-parent-type msg) "comm_msg")
         (jupyter-display-traceback traceback))
        (t
         (jupyter-repl-append-output client req
@@ -1349,6 +1349,8 @@ this method is called."
   ;; added after deleting text at the beginning of a cell.
   (jupyter-repl-mark-as-cell-code beg (min (point-max) (+ beg 1))))
 
+(defvar jupyter-repl-interaction-mode)
+
 (defun jupyter-repl--deactivate-interaction-buffers ()
   (cl-loop
    with client = jupyter-current-client
@@ -1872,8 +1874,8 @@ Do so only if possible in the `current-buffer'."
 
 (defun jupyter-repl-interaction-mode-line ()
   "Return a mode line string with the status of the kernel.
-'*' means the kernel is busy, '-' means the kernel is idle and
-the REPL is connected, 'x' means the REPL is disconnected
+`*' means the kernel is busy, `-' means the kernel is idle and
+the REPL is connected, `x' means the REPL is disconnected
 from the kernel."
   (and (cl-typep jupyter-current-client 'jupyter-repl-client)
        (concat " JuPy["