Updated travis numpy version to avoid numpy vs scipy dependency issues

lindonroberts · lindonroberts · commit 90c8b1a2ef27 · 2021-02-25T14:27:13.000+11:00
diff --git a/.travis.yml b/.travis.yml
@@ -9,6 +9,7 @@ python:
 install:
   - sudo apt-get install gfortran
   - pip install -r requirements.txt
+  - pip install --upgrade numpy  # some SciPy and pandas versions require newer NumPy
   - python setup.py build
 
 script:
