add missing req.

.travis.yml

@@ -29,7 +29,6 @@ matrix:
 cache: pip
 
 install:
-  - sudo apt-get install python-opencv openslide-tools
   - pip install -r requirements.txt
   - pip install -r ./tests/requirements.txt
   - pip install tox

appveyor.yml

@@ -41,8 +41,6 @@ install:
   # The AppVeyor 'rollout builds' option is supposed to serve the same
   # purpose but it is problematic because it tends to cancel builds pushed
   # directly to master instead of just PR builds (or the converse).
-  - choco upgrade chocolatey
-  - choco install -y opencv
   - SET PATH=%PYTHON%;%PYTHON%\\Scripts;%path%
   - pip install -U --user pip
   - pip install -r requirements.txt

requirements.txt

@@ -4,3 +4,4 @@ twine==1.13.0
 numpy==1.16.4
 torch>=1.1.0
 torchvision==0.3.0
+pandas

tests/requirements.txt

@@ -4,4 +4,5 @@ codecov
 pytest>=3.0.5
 pytest-cov
 flake8
-check-manifest
+check-manifest
+test_tube