release 3.8.6

docs/changelog.rst

@@ -11,6 +11,16 @@ with advance notice in the **Deprecations** section of releases.
 
 .. towncrier release notes start
 
+v3.8.6 (2019-04-03)
+-------------------
+
+Bugfixes
+^^^^^^^^
+
+- :conf:`parallel_show_output` does not work with tox 3.8
+  `#1245 <https://github.com/tox-dev/tox/issues/1245>`_
+
+
 v3.8.5 (2019-04-03)
 -------------------
 

src/tox/session/commands/run/parallel.py

@@ -30,6 +30,7 @@ def run_parallel(config, venv_dict):
     with Spinner(enabled=show_progress) as spinner:
 
         def run_in_thread(tox_env, os_env, processes):
+            output = None
             env_name = tox_env.envconfig.envname
             status = "skipped tests" if config.option.notest else None
             try:
@@ -52,8 +53,6 @@ def collect_process(process):
                         callback=collect_process,
                         returnout=print_out,
                     )
-                    if print_out:
-                        reporter.verbosity0(output)
 
             except InvocationError as err:
                 status = "parallel child exit code {}".format(err.exit_code)
@@ -68,6 +67,8 @@ def collect_process(process):
                 elif status is not None:
                     outcome = spinner.fail
                 outcome(env_name)
+                if print_out and output is not None:
+                    reporter.verbosity0(output)
 
         threads = deque()
         processes = {}