pin plotnine at <0.7

started getting a MemoryError running



(ggplot(diamonds) +

  aes('depth', fill='cut', color='cut') +

  geom_density(alpha=0.1))

Author: tdhopper

requirements.txt

@@ -4,7 +4,7 @@ ipython
 pandas
 jupyter
 seaborn
-plotnine
+plotnine<0.7.0
 jinja2
 jinja2-highlight
 markdown