Adhered to style guides and added release note

guake/guake_app.py

@@ -598,9 +598,9 @@ def show_hide(self, *args):
         else:
             log.debug("Hiding the terminal")
             self.hide()
-            
+
     def get_visibility(self):
-        if self.hidden == True:
+        if self.hidden:
             return 0
         return 1
 

releasenotes/notes/feature_isvisible_option-6f15b5f7d3341e7e.yaml

@@ -0,0 +1,57 @@
+release_summary: >
+  Replace this text with content to appear at the top of the section for this
+  release.
+
+  All of the prelude content is merged together and then rendered
+  separately from the items listed in other parts of the file, so the text
+  needs to be worded so that both the prelude and the other items make sense
+  when read independently.
+
+  Do not use "list" syntax here
+
+features:
+  - |
+    List new features here followed by the ticket number, for example::
+
+      - --is-visible option returns 1 when visible, and 0 when not #1926
+
+known_issues:
+  - |
+    List know issue introduced by the change here, followed if possible by a
+    ticket number, for example::
+
+      - such other feature is broken #1234
+
+upgrade:
+  - |
+    List upgrade note for end users here
+
+deprecations:
+  - |
+    List deprecations notes heres, ie, feature that are being removed by the
+    change.
+
+security:
+  - |
+    Add security notes here.
+
+fixes:
+  - |
+    Add normal bug fixes here, followed by the ticket number, for example::
+
+      - broken feature has been fixed #1234
+
+translations:
+  - Only put a list of updated 2 letters language code, for example::
+
+        translations:
+          - fr
+          - de
+
+notes_for_package_maintainers:
+  - |
+    Add notes for package maintainers here.
+
+other:
+  - |
+    Add other notes here.