There are bugs in the code

[bent1e]

947 with open(evolve_csv, 'a') as f:
--> 948 f.write(s + ('%20.5g,' * n % vals).rstrip(',') + '\n')
950 # Save yaml
951 with open(evolve_yaml, 'w') as f:

TypeError: not all arguments converted during string formatting

[cnavarrete]

Tell me about it!
Maybe this PR is for you #1698