[Doc] Automatically ignore unwanted Matplotlib output in gallery

doc/sphinx/conf.py

@@ -53,6 +53,7 @@ sphinx_gallery_conf = {
     'ignore_pattern': r'(__.*__\.py|test_examples\.m)',
     'image_srcset': ["2x"],
     'remove_config_comments': True,
+    'ignore_repr_types': r'matplotlib\.(text|axes|legend)',
     'examples_dirs': [
        '../samples/python/',
        '../samples/cxx/',

samples/python/onedim/flamespeed_sensitivity.py

@@ -81,7 +81,8 @@ profile = flame.to_array()
 fig, ax = plt.subplots()
 
 ax.plot(profile.grid * 100, profile.T, ".-")
-_ = ax.set(xlabel="Distance [cm]", ylabel="Temperature [K]")
+ax.set_xlabel("Distance [cm]")
+ax.set_ylabel("Temperature [K]")
 
 # %%
 
@@ -93,8 +94,8 @@ ax.plot(profile.grid * 100, profile("CO2").X, "--", label="CO$_2$")
 ax.plot(profile.grid * 100, profile("H2O").X, label="H$_2$O")
 
 ax.legend(loc="best")
-plt.xlabel("Distance (cm)")
-_ = ax.set(xlabel="Distance [cm]", ylabel="Mole fraction [-]")
+ax.set_xlabel("Distance [cm]")
+ax.set_ylabel("Mole fraction [-]")
 
 # %%
 # Sensitivity Analysis

samples/python/surface_chemistry/lithium_ion_battery.py

@@ -355,7 +355,7 @@ ax.plot(100 * X_Li_ca, E_cell_therm,
         linewidth=0.0, marker="o", markerfacecolor="none", label="Thermodynamic")
 ax.set(ylim=[2.5, 4.3], xlabel="Li Fraction in Cathode (%)",
        ylabel="Open Circuit Potential (V)")
-_ = ax.legend()
+ax.legend()
 
 # %%
 # As one would expect, the two approaches give identical results. While both methods are

samples/python/thermo/equations_of_state.py

@@ -253,7 +253,7 @@ ax.text(430, 318, "p = 97 bar", color=color[5], rotation=-12)
 ax.text(960, 320, "p = 600 bar", color=color[9], rotation=-68)
 ax.set_xlabel("Density [kg/m$^3$]")
 ax.set_ylabel("Temperature [K]")
-_ = ax.legend(handles=[ideal_line[0], RK_line[0], CP_line[0]])
+ax.legend(handles=[ideal_line[0], RK_line[0], CP_line[0]])
 
 #%%
 # The figure compares :math:`T-\rho` plots for ideal, R-K, and Helmholtz EoS at