avoid deprecation warning by moving to explicit axes implementation

email_stats.py

@@ -92,50 +92,50 @@ for msg in a:
 
 # Email send times as a function of day
 
-plt.figure()
-plt.ylim([0, 24])
-plt.yticks(4*np.arange(7))
-plt.ylabel('Hour', fontsize='large')
-plt.xlabel('Date', fontsize='large')
-plt.minorticks_on()
-plt.title(args.title + ' - Email Send Times', fontsize='large')
+fig, ax = plt.subplots(1, 1)
+ax.set_ylim([0, 24])
+ax.set_yticks(4*np.arange(7))
+ax.set_ylabel('Hour', fontsize='large')
+ax.set_xlabel('Date', fontsize='large')
+ax.minorticks_on()
+ax.set_title(args.title + ' - Email Send Times', fontsize='large')
 
 viridis = plt.get_cmap('viridis')
 
 if args.sendercolors:
     for plid in enumerate(slist):
-        plt.plot_date(np.array(pldata[plid[1]])[:, 0],
-                      np.array(pldata[plid[1]])[:, 1],
-                      color=viridis(plid[0] / (nsend + 1)),
-                      marker='.',
-                      #tz=z.tzname(),
-                      label=plid[1],
-                      xdate=True)
+        ax.plot_date(np.array(pldata[plid[1]])[:, 0],
+                     np.array(pldata[plid[1]])[:, 1],
+                     color=viridis(plid[0] / (nsend + 1)),
+                     marker='.',
+                     #tz=z.tzname(),
+                     label=plid[1],
+                     xdate=True)
 
 if len(pldata['unknown']) > 0:
-    plt.plot_date(np.array(pldata['unknown'])[:, 0],
-                  np.array(pldata['unknown'])[:, 1],
-                  color=viridis(1),
-                  marker='.',
-                  #tz=z.tzname(),
-                  label='unknown',
-                  xdate=True)
+    ax.plot_date(np.array(pldata['unknown'])[:, 0],
+                 np.array(pldata['unknown'])[:, 1],
+                 color=viridis(1),
+                 marker='.',
+                 #tz=z.tzname(),
+                 label='unknown',
+                 xdate=True)
 
 if args.sendercolors:
-    plt.legend(loc='upper left', ncol=nsend + 1)
+    ax.legend(loc='upper left', ncol=nsend + 1)
 
 if args.plotroot:
-    plt.savefig(args.plotroot + '-send_times.png')
+    fig.savefig(args.plotroot + '-send_times.png')
 else:
-    plt.savefig('send_times.png')
+    fig.savefig('send_times.png')
 
 
 # Email destination domains as a function of month
-plt.figure()
-plt.ylabel(r'Emails sent to Domain', fontsize='large')
-plt.xlabel(r'Year$-$Month', fontsize='large')
-plt.minorticks_on()
-plt.title(args.title, fontsize='large')
+fig, ax = plt.subplots(1, 1)
+ax.set_ylabel(r'Emails sent to Domain', fontsize='large')
+ax.set_xlabel(r'Year$-$Month', fontsize='large')
+ax.minorticks_on()
+ax.set_title(args.title, fontsize='large')
 
 months = list(senders.keys())
 months.sort()
@@ -154,31 +154,35 @@ for j in range(len(domains) + 1):
     if np.all(np.array(domainlist) == 0):
         # skip domains with zero emails sent over the entire duration
         continue
-    plt.plot(np.arange(len(months)),
-             domainlist,
-             label=label)
+    ax.plot(np.arange(len(months)),
+            domainlist,
+            label=label)
     total += domainlist
 
-plt.plot(np.arange(len(months)),
-         total,
-         color='k',
-         ls='--',
-         alpha=0.4,
-         label='All Emails')
-
-plt.annotate('N={0:1.0f}'.format(np.sum(total)),
-             (0.99, 0.99),
-             ha='right',
-             va='top',
-             xycoords='axes fraction')
-
-plt.legend(frameon=False, loc='best')
-plt.xticks(np.arange(len(months)), months, rotation=90)
-plt.setp(plt.axes().get_xticklabels(), visible=False)
-plt.setp(plt.axes().get_xticklabels()[::6], visible=True)
-plt.ylim(bottom=0)
+ax.plot(np.arange(len(months)),
+        total,
+        color='k',
+        ls='--',
+        alpha=0.4,
+        label='All Emails')
+
+ax.annotate('N={0:1.0f}'.format(np.sum(total)),
+            (0.99, 0.99),
+            ha='right',
+            va='top',
+            xycoords='axes fraction')
+
+ax.legend(frameon=False, loc='best')
+ax.set_xticks(np.arange(len(months)),
+              months)
+ax.tick_params(axis='x',
+               labelrotation=90)
+# set every other sixth ticklabel as visible
+plt.setp(ax.get_xticklabels(), visible=False)
+plt.setp(ax.get_xticklabels()[::6], visible=True)
+ax.set_ylim(bottom=0)
 
 if args.plotroot:
-    plt.savefig(args.plotroot + '-destinations.png', bbox_inches='tight')
+    fig.savefig(args.plotroot + '-destinations.png', bbox_inches='tight')
 else:
-    plt.savefig('email_destinations.png', bbox_inches='tight')
+    fig.savefig('email_destinations.png', bbox_inches='tight')