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Check that the kernel is ready before resetting the shell or setting the color scheme in the shell widget.

Author: mrclary

spyder/plugins/ipythonconsole/widgets/shell.py

@@ -749,6 +749,9 @@ def set_color_scheme(self, color_scheme, reset=True):
         self.set_bracket_matcher_color_scheme(color_scheme)
         self.style_sheet, dark_color = create_qss_style(color_scheme)
         self.syntax_style = color_scheme
+        if not self.spyder_kernel_ready:
+            # Will be sent later
+            return
         if reset:
             # Don't clear console and show a message instead to prevent
             # removing important content from users' consoles.
@@ -758,9 +761,6 @@ def set_color_scheme(self, color_scheme, reset=True):
                 "\n\nNote: Clearing the console is necessary to fully apply "
                 "the new syntax style you selected."
             )
-        if not self.spyder_kernel_ready:
-            # Will be sent later
-            return
         self.set_kernel_configuration(
             "color scheme", "dark" if not dark_color else "light"
         )