[skip appveyor] fix paths

.travis.yml

@@ -30,8 +30,8 @@ install:
   - cmake --build . --config Release
   - cd ../..
   - find .
-  - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then cp opencv/lib/*.pyd opencv-python/cv2; fi
-  - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then cp opencv/lib/python3/*.pyd opencv-python/cv2; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then cp opencv/build/lib/python/*.so opencv-python/cv2; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then cp opencv/build/lib/python3/*.so opencv-python/cv2; fi
   - python setup.py bdist_wheel --opencv-version "$opencv_version-$TRAVIS_BUILD_NUMBER"
 
 before_script: