diff --git a/kittens/hints/main.py b/kittens/hints/main.py
index 8c4d3ec5a..f4c1ec037 100644
--- a/kittens/hints/main.py
+++ b/kittens/hints/main.py
@@ -213,7 +213,7 @@ def url(text, s, e):
 @postprocessor
 def brackets(text, s, e):
     # Remove matching brackets
-    if e > s and e <= len(text):
+    if s < e <= len(text):
         before = text[s]
         if before in '({[<' and text[e-1] == closing_bracket_map[before]:
             s += 1
@@ -224,7 +224,7 @@ def brackets(text, s, e):
 @postprocessor
 def quotes(text, s, e):
     # Remove matching quotes
-    if e > s and e <= len(text):
+    if s < e <= len(text):
         before = text[s]
         if before in '\'"' and text[e-1] == before:
             s += 1
diff --git a/kitty/fonts/render.py b/kitty/fonts/render.py
index b3333d102..245fa669e 100644
--- a/kitty/fonts/render.py
+++ b/kitty/fonts/render.py
@@ -88,7 +88,7 @@ def set_font_family(opts=None, override_font_size=None, debug_font_matching=Fals
 
 def add_line(buf, cell_width, position, thickness, cell_height):
     y = position - thickness // 2
-    while thickness > 0 and y > -1 and y < cell_height:
+    while thickness > 0 and -1 < y < cell_height:
         thickness -= 1
         ctypes.memset(ctypes.addressof(buf) + (cell_width * y), 255, cell_width)
         y += 1
diff --git a/kitty/layout.py b/kitty/layout.py
index 5ce756288..5be8933f9 100644
--- a/kitty/layout.py
+++ b/kitty/layout.py
@@ -54,7 +54,7 @@ def layout_dimension(start_at, length, cell_length, decoration_pairs, left_align
         inner_length = cells_in_window * cell_length
         return inner_length + decoration_pairs[i][1]
 
-    if bias is not None and number_of_windows > 1 and len(bias) == number_of_windows and cells_per_window > 5:
+    if bias is not None and 1 < number_of_windows == len(bias) and cells_per_window > 5:
         cells_map = [int(b * number_of_cells) for b in bias]
         while min(cells_map) < 5:
             maxi, mini = map(cells_map.index, (max(cells_map), min(cells_map)))
diff --git a/kitty/tabs.py b/kitty/tabs.py
index 5ffb93d1c..d252de010 100644
--- a/kitty/tabs.py
+++ b/kitty/tabs.py
@@ -480,7 +480,7 @@ class TabManager:  # {{{
             self.set_active_tab_idx((self.active_tab_idx + len(self.tabs) + delta) % len(self.tabs))
 
     def goto_tab(self, tab_num):
-        if tab_num < len(self.tabs) and 0 <= tab_num:
+        if 0 <= tab_num < len(self.tabs):
             self.set_active_tab_idx(tab_num)
         elif tab_num < 0:
             try: