diff --git a/examples/images_contours_and_fields/contour_demo.py b/examples/images_contours_and_fields/contour_demo.py
index 763b0789a870..2c9881c83fe1 100644
--- a/examples/images_contours_and_fields/contour_demo.py
+++ b/examples/images_contours_and_fields/contour_demo.py
@@ -31,7 +31,7 @@
 
 fig, ax = plt.subplots()
 CS = ax.contour(X, Y, Z)
-ax.clabel(CS, inline=1, fontsize=10)
+ax.clabel(CS, inline=True, fontsize=10)
 ax.set_title('Simplest default with labels')
 
 ###############################################################################
@@ -43,7 +43,7 @@
 CS = ax.contour(X, Y, Z)
 manual_locations = [
     (-1, -1.4), (-0.62, -0.7), (-2, 0.5), (1.7, 1.2), (2.0, 1.4), (2.4, 1.7)]
-ax.clabel(CS, inline=1, fontsize=10, manual=manual_locations)
+ax.clabel(CS, inline=True, fontsize=10, manual=manual_locations)
 ax.set_title('labels at selected locations')
 
 ###############################################################################
@@ -51,7 +51,7 @@
 
 fig, ax = plt.subplots()
 CS = ax.contour(X, Y, Z, 6, colors='k')  # Negative contours default to dashed.
-ax.clabel(CS, fontsize=9, inline=1)
+ax.clabel(CS, fontsize=9, inline=True)
 ax.set_title('Single color - negative contours dashed')
 
 ###############################################################################
@@ -60,7 +60,7 @@
 matplotlib.rcParams['contour.negative_linestyle'] = 'solid'
 fig, ax = plt.subplots()
 CS = ax.contour(X, Y, Z, 6, colors='k')  # Negative contours default to dashed.
-ax.clabel(CS, fontsize=9, inline=1)
+ax.clabel(CS, fontsize=9, inline=True)
 ax.set_title('Single color - negative contours solid')
 
 ###############################################################################
@@ -71,7 +71,7 @@
                 linewidths=np.arange(.5, 4, .5),
                 colors=('r', 'green', 'blue', (1, 1, 0), '#afeeee', '0.5'),
                 )
-ax.clabel(CS, fontsize=9, inline=1)
+ax.clabel(CS, fontsize=9, inline=True)
 ax.set_title('Crazy lines')
 
 ###############################################################################
@@ -90,7 +90,7 @@
 plt.setp(zc, linewidth=4)
 
 ax.clabel(CS, levels[1::2],  # label every second level
-          inline=1, fmt='%1.1f', fontsize=14)
+          inline=True, fmt='%1.1f', fontsize=14)
 
 # make a colorbar for the contour lines
 CB = fig.colorbar(CS, shrink=0.8)
diff --git a/examples/misc/demo_agg_filter.py b/examples/misc/demo_agg_filter.py
index 80dde60de314..94379b214946 100644
--- a/examples/misc/demo_agg_filter.py
+++ b/examples/misc/demo_agg_filter.py
@@ -170,7 +170,7 @@ def filtered_text(ax):
 
     # contour label
     cl = ax.clabel(CS, levels[1::2],  # label every second level
-                   inline=1,
+                   inline=True,
                    fmt='%1.1f',
                    fontsize=11)
 
diff --git a/examples/mplot3d/contour3d.py b/examples/mplot3d/contour3d.py
index a740c30376c1..8ae9deb54981 100644
--- a/examples/mplot3d/contour3d.py
+++ b/examples/mplot3d/contour3d.py
@@ -18,6 +18,6 @@
 # Plot contour curves
 cset = ax.contour(X, Y, Z, cmap=cm.coolwarm)
 
-ax.clabel(cset, fontsize=9, inline=1)
+ax.clabel(cset, fontsize=9, inline=True)
 
 plt.show()
diff --git a/examples/mplot3d/contour3d_2.py b/examples/mplot3d/contour3d_2.py
index b77b2bdc0557..686fc4aa39f0 100644
--- a/examples/mplot3d/contour3d_2.py
+++ b/examples/mplot3d/contour3d_2.py
@@ -17,6 +17,6 @@
 
 cset = ax.contour(X, Y, Z, extend3d=True, cmap=cm.coolwarm)
 
-ax.clabel(cset, fontsize=9, inline=1)
+ax.clabel(cset, fontsize=9, inline=True)
 
 plt.show()
diff --git a/examples/mplot3d/contourf3d.py b/examples/mplot3d/contourf3d.py
index 81c058905930..1fcfe5c634bf 100644
--- a/examples/mplot3d/contourf3d.py
+++ b/examples/mplot3d/contourf3d.py
@@ -20,6 +20,6 @@
 
 cset = ax.contourf(X, Y, Z, cmap=cm.coolwarm)
 
-ax.clabel(cset, fontsize=9, inline=1)
+ax.clabel(cset, fontsize=9, inline=True)
 
 plt.show()