another try to activate the virtualenv

chinyeungli · chinyeungli · commit 3ad58a72f789 · 2020-10-08T16:43:18.000+08:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -7,7 +7,7 @@ build: off
 
 test_script:
     - set
-    - . bin/activate
+    - bin/activate
     - pytest -vvs tests
 
 on_success:
