[ci] set windows path on travis

diff --git a/.travis.yml b/.travis.yml
index 3b18535..6ec4fde 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,6 +50,7 @@ matrix:
       before_install:
         - choco install python --version 3.8.0
         - python -m pip install --upgrade pip
+      env: PATH=/c/Python38:/c/Python38/Scripts:$PATH
 
 # use trusty
 dist: trusty