Test on Python 3.9

1 files changed, 4 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 78eb44ab..21daa002 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 # For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
 
 [tox]
-envlist = py{27,35,36,37,38}, pypy{2,3}, doc, lint
+envlist = py{27,35,36,37,38,39}, pypy{2,3}, doc, lint
 skip_missing_interpreters = {env:COVERAGE_SKIP_MISSING_INTERPRETERS:True}
 toxworkdir = {env:TOXWORKDIR:.tox}
 
@@ -47,6 +47,9 @@ commands =
     python setup.py --quiet build_ext --inplace
     python igor.py test_with_tracer c {posargs}
 
+[testenv:py39]
+basepython = python3.9
+
 [testenv:doc]
 # Build the docs so we know if they are successful.  We build twice: once with
 # -q to get all warnings, and once with -QW to get a success/fail status