💚 test with python3 in travis, with non-conda setup

.travis.yml

@@ -1,49 +1,22 @@
 language: python
 python:
-# This is not actually used. Because it would take an overly long time
-# to build scipy we cannot use the virtual env of travis. Instead, we
-# use miniconda.
   - "2.7"
+  - "3.4"
+  - "3.5"
+  - "3.6"
+  - "3.7-dev"
 
 sudo: false
 
 cache:
   directories:
     - $HOME/.cache/matplotlib
+    - $HOME/.cache/pip
+    - models
 
 install:
-  # Install miniconda
-  # -----------------
-  - if [[ "$TRAVIS_PYTHON_VERSION" == 2* ]]; then
-      wget http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh;
-    else
-      wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
-    fi
-  - bash miniconda.sh -b -p $HOME/miniconda
-  - export PATH="$HOME/miniconda/bin:$PATH"
-
-  # Create the basic testing environment
-  # ------------------------------------
-  - conda config --set always_yes yes --set changeps1 no --set show_channel_urls yes
-  - conda update conda
-  - conda create -n test-environment python=$TRAVIS_PYTHON_VERSION
-  - source activate test-environment
-
-  # Customise the testing environment
-  # ---------------------------------
-  - conda install --file requirements.txt
-
-  # Conda debug
-  #-----------
-  - conda list
-
-  # Install ocropy
-  # --------------
-  - wget -O models/en-default.pyrnn.gz http://www.tmbdev.net/en-default.pyrnn.gz
-  - python setup.py install
+  - cd models && wget -nc http://www.tmbdev.net/en-default.pyrnn.gz
+  - pip install .
 
 script:
-  - mkdir ../test_folder
-  - cd ../test_folder
-  - ../ocropy/tests/run-unit
-  - ../ocropy/run-test-ci
+  - ./run-test-ci

requirements.txt

@@ -1,5 +1,5 @@
-numpy>=1.15.2
-scipy>=1.2.0
+numpy>=1.15.4
+scipy>=1.1.0
 matplotlib>=2.2.3
 imageio>=2.4.1
 Pillow>=2.7.0