debug print python and pip version

Signed-off-by: oleg.hoefling <[email protected]>

Author: hoefling

.appveyor.yml

@@ -17,6 +17,8 @@ environment:
 
 install:
   - SET PATH=C:\\Python%PYTHON%;c:\\Python%PYTHON%\\scripts;%PATH%
+  - python --version
+  - python -m pip --version
   - python -m pip install -U pip wheel setuptools
 
 build: off