matplotlib · tacaswell · Apr 17, 2018 · Apr 17, 2018
diff --git a/lib/matplotlib/_constrained_layout.py b/lib/matplotlib/_constrained_layout.py
@@ -77,19 +77,13 @@ def get_axall_tightbbox(ax, renderer):
 
 
 def in_same_column(colnum0min, colnum0max, colnumCmin, colnumCmax):
-    if colnum0min >= colnumCmin and colnum0min <= colnumCmax:
-        return True
-    if colnum0max >= colnumCmin and colnum0max <= colnumCmax:
-        return True
-    return False
+    return (colnumCmin <= colnum0min <= colnumCmax
+            or colnumCmin <= colnum0max <= colnumCmax)
 
 
 def in_same_row(rownum0min, rownum0max, rownumCmin, rownumCmax):
-    if rownum0min >= rownumCmin and rownum0min <= rownumCmax:
-        return True
-    if rownum0max >= rownumCmin and rownum0max <= rownumCmax:
-        return True
-    return False
+    return (rownumCmin <= rownum0min <= rownumCmax
+            or rownumCmin <= rownum0max <= rownumCmax)
 
 
 ######################################################

diff --git a/lib/matplotlib/backends/backend_webagg_core.py b/lib/matplotlib/backends/backend_webagg_core.py
@@ -88,21 +88,21 @@ def _handle_key(key):
     code = int(key[key.index('k') + 1:])
     value = chr(code)
     # letter keys
-    if code >= 65 and code <= 90:
+    if 65 <= code <= 90:
         if 'shift+' in key:
             key = key.replace('shift+', '')
         else:
             value = value.lower()
     # number keys
-    elif code >= 48 and code <= 57:
+    elif 48 <= code <= 57:
         if 'shift+' in key:
             value = ')!@#$%^&*('[int(value)]
             key = key.replace('shift+', '')
     # function keys
-    elif code >= 112 and code <= 123:
+    elif 112 <= code <= 123:
         value = 'f%s' % (code - 111)
     # number pad keys
-    elif code >= 96 and code <= 105:
+    elif 96 <= code <= 105:
         value = '%s' % (code - 96)
     # keys with shift alternatives
     elif code in _SHIFT_LUT and 'shift+' in key:

diff --git a/lib/matplotlib/backends/backend_wx.py b/lib/matplotlib/backends/backend_wx.py
@@ -489,7 +489,7 @@ def set_linewidth(self, w):
         w = float(w)
         DEBUG_MSG("set_linewidth()", 1, self)
         self.select()
-        if w > 0 and w < 1:
+        if 0 < w < 1:
             w = 1
         GraphicsContextBase.set_linewidth(self, w)
         lw = int(self.renderer.points_to_pixels(self._linewidth))

diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
@@ -304,8 +304,7 @@ def draw(self, renderer):
                 combined_transform = transform
             extents = paths[0].get_extents(combined_transform)
             width, height = renderer.get_canvas_width_height()
-            if (extents.width < width and
-                extents.height < height):
+            if extents.width < width and extents.height < height:
                 do_single_path_optimization = True
 
         if self._joinstyle:

diff --git a/lib/matplotlib/mathtext.py b/lib/matplotlib/mathtext.py
@@ -1000,7 +1000,7 @@ def _map_virtual_font(self, fontname, font_class, uniindex):
                 else:
                     lo = mid + 1
 
-            if uniindex >= range[0] and uniindex <= range[1]:
+            if range[0] <= uniindex <= range[1]:
                 uniindex = uniindex - range[0] + range[3]
                 fontname = range[2]
             elif not doing_sans_conversion:

diff --git a/lib/matplotlib/projections/polar.py b/lib/matplotlib/projections/polar.py
@@ -1344,7 +1344,7 @@ def start_pan(self, x, y, button):
         if button == 1:
             epsilon = np.pi / 45.0
             t, r = self.transData.inverted().transform_point((x, y))
-            if t >= angle - epsilon and t <= angle + epsilon:
+            if angle - epsilon <= t <= angle + epsilon:
                 mode = 'drag_r_labels'
         elif button == 3:
             mode = 'zoom'

diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -501,7 +501,7 @@ def figure(num=None,  # autoincrement if None, else integer from 1-N
     if figManager is None:
         max_open_warning = rcParams['figure.max_open_warning']
 
-        if (max_open_warning >= 1 and len(allnums) >= max_open_warning):
+        if len(allnums) >= max_open_warning >= 1:
             warnings.warn(
                 "More than %d figures have been opened. Figures "
                 "created through the pyplot interface "

diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
@@ -2413,25 +2413,25 @@ def tick_values(self, vmin, vmax):
         # major ticks
         if not self.minor:
             ticklocs = []
-            if (decade_min <= -1):
+            if decade_min <= -1:
                 expo = np.arange(decade_min, min(0, decade_max + 1))
                 ticklocs.extend(list(10**expo))
-            if (decade_min <= 0) and (decade_max >= 0):
+            if decade_min <= 0 <= decade_max:
                 ticklocs.append(0.5)
-            if (decade_max >= 1):
+            if decade_max >= 1:
                 expo = -np.arange(max(1, decade_min), decade_max + 1)
                 ticklocs.extend(list(1 - 10**expo))
 
         # minor ticks
         else:
             ticklocs = []
-            if (decade_min <= -2):
+            if decade_min <= -2:
                 expo = np.arange(decade_min, min(-1, decade_max))
                 newticks = np.outer(np.arange(2, 10), 10**expo).ravel()
                 ticklocs.extend(list(newticks))
-            if (decade_min <= 0) and (decade_max >= 0):
+            if decade_min <= 0 <= decade_max:
                 ticklocs.extend([0.2, 0.3, 0.4, 0.6, 0.7, 0.8])
-            if (decade_max >= 2):
+            if decade_max >= 2:
                 expo = -np.arange(max(2, decade_min), decade_max + 1)
                 newticks = 1 - np.outer(np.arange(2, 10), 10**expo).ravel()
                 ticklocs.extend(list(newticks))