travis back to trusty

Author: mikedh

.travis.yml

@@ -1,7 +1,7 @@
 # we are using miniconda python
 language: generic
 sudo: required
-dist: xenial
+dist: trusty
 
 matrix:
   include:
@@ -63,14 +63,16 @@ install:
   -O miniconda.sh; fi
 - bash miniconda.sh -b -p $HOME/miniconda
 - export PATH="$HOME/miniconda/bin:$PATH"
-- hash -r
 - conda config --set always_yes yes --set changeps1 no
 - conda config --add channels conda-forge
 - conda update -q conda
 - conda info -a
 - conda create -q -n test-environment python=$PYTHON_VERSION nomkl numpy scipy
 - source activate test-environment
 
+# make sure we parked our car in the right spot
+- python -c "import os,sys;assert '{}.{}'.format(sys.version_info.major, sys.version_info.minor) == os.environ['PYTHON_VERSION']"
+
 # only install the basic version of the library to make sure
 # trimesh imports and functions with only the minimal install
 - pip install .

trimesh/version.py

@@ -1 +1 @@
-__version__ = '2.33.29'
+__version__ = '2.33.30'