clean up ci jobs (#2355)

* clean up ci jobs

* upgrade shapely dep

* upgrade deps

* more version constellation tuning

* scipy compatible with both

Author: nicolaskruchten

Diff for: .circleci/config.yml

@@ -504,12 +504,8 @@ workflows:
       - python-2.7-optional
       - python-3.5-optional
       - python-3.6-optional
-      # 3.7 optional disabled due to current shapely incompatibility
-      # - python-3.7-optional
-      - python-2.7-plot_ly
-      - python-3.7-plot_ly:
-          requires:
-            - python-2.7-plot_ly
+      - python-3.7-optional
+      - python-3.7-plot_ly
       - python-2-7-orca
       - python-3-5-orca
       - python-3-7-orca

Diff for: packages/python/plotly/tox.ini

@@ -66,8 +66,8 @@ deps=
     optional: ipywidgets==7.2.0
     optional: ipykernel==4.8.2
     optional: jupyter==1.0.0
-    optional: scipy==0.18.1
-    optional: shapely==1.6.4
+    optional: scipy==1.2.3
+    optional: shapely==1.7.0
     optional: geopandas==0.3.0
     optional: pyshp==1.2.10
     optional: pillow==5.2.0