Fixed log-scale matplotlib compatibility for v3.2

The matplotlib package removed all axis directions from the base
parameters for logarithmic scaling functions in v3.2.0 and up.

This commit supports both the original "basex" and "basey" parameters
for older versions of matplotlib and the new "base" parameter for more
recent versions of matplotlib.

Signed-off-by: Frey Alfredsson <[email protected]>

flent/plotters.py

@@ -57,6 +57,7 @@
     HAS_MATPLOTLIB = False
     MPL_VER = LooseVersion("0")
 
+
 PLOT_KWARGS = (
     'alpha',
     'antialiased',
@@ -1228,7 +1229,10 @@ def _do_scaling(self, axis, data, btm, top, unit=None, allow_log=True):
             axis.set_ylim(0, top_scale)
         else:
             if self.log_base:
-                axis.set_yscale('log', basey=self.log_base)
+                if MPL_VER >= LooseVersion("3.2"):
+                    axis.set_yscale('log', base=self.log_base)
+                else:
+                    axis.set_yscale('log', basey=self.log_base)
                 axis.set_ylim(max(0, btm_scale), top_scale)
             else:
                 axis.set_ylim(btm_scale, top_scale)
@@ -1874,7 +1878,10 @@ def _plot(self, results, config=None, axis=None, postfix="",
             axis.set_xlim(left=min(min_value, axis.get_xlim()[0]))
 
         if self.log_base:
-            axis.set_xscale('log', basex=self.log_base)
+            if MPL_VER >= LooseVersion("3.2"):
+                axis.set_xscale('log', base=self.log_base)
+            else:
+                axis.set_xscale('log', basex=self.log_base)
 
         for a, b in zip(config['axes'], self.bounds_x):
             a.set_xbound(b)