Support matplotlib 3.2, 3.3 and python 3.8.

easypyplot/tests/__init__.py

@@ -118,7 +118,10 @@ def setup():
     if ver >= (1, 5):
         matplotlib.testing.setup()
     # Style name has changed over matplotlib versions.
-    if ver >= (2, 0):
+    # See changes from <matplotlib repo>/lib/matplotlib/testing/conftest.py:mpl_test_settings()
+    if ver >= (3, 2):
+        matplotlib.style.use(['classic', '_classic_test_patch'])
+    elif ver >= (2, 0):
         matplotlib.style.use('_classic_test')
     elif ver >= (1, 5):
         matplotlib.style.use('classic')

tox.ini

@@ -3,8 +3,9 @@ envlist =
     cov-init,
     py{27,34}-mpl{13,14,15,20,21,22},
     py{35}-mpl{14,15,20,21,22,30},
-    py{36}-mpl{20,21,22,30,31},
-    py{37}-mpl{22,30,31},
+    py{36}-mpl{20,21,22,30,31,32,33},
+    py{37}-mpl{22,30,31,32,33},
+    py{38}-mpl{32,33},
     cov-end
 
 [testenv]
@@ -24,6 +25,8 @@ deps =
     mpl22: matplotlib>=2.2,<2.3
     mpl30: matplotlib>=3.0,<3.1
     mpl31: matplotlib>=3.1,<3.2
+    mpl32: matplotlib>=3.2,<3.3
+    mpl33: matplotlib>=3.3,<3.4
 
 install_command =
     ; pip cannot handle the correct install order between matplotlib and numpy,