Tree 186

[baileythegreen]

Please include a summary of the change and which issue is fixed. Please also include the motivation and context, and note the tests that apply to these changes.

Closes #187.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality not to work as expected)
• This change requires a documentation update
• This is a documentation update

Action Checklist

• Work on a single issue/concept (if there are multiple separate issues to address, please use a separate pull request for each)
• Fork the pyani repository under your own account (please allow write access for repository maintainers)
• Set up an appropriate development environment (please see CONTRIBUTING.md)
• Create a new branch with a short, descriptive name
• Work on this branch
  • style guidelines have been followed
  • new code is commented, especially in hard-to-understand areas
  • corresponding changes to documentation have been made
  • tests for the change have been added that demonstrate the fix or feature works
• Test locally with pytest -v non-passing code will not be merged
• Rebase against origin/master
• Check changes with flake8 and black before submission
• Commit branch
• Submit pull request, describing the content and intent of the pull request
• Request a code review
• Continue the discussion at Pull requests section in the pyani repository

[codecov]

Codecov Report

Merging #370 (1acbdca) into master (1bed428) will decrease coverage by 1.33%.
The diff coverage is 36.08%.

@@            Coverage Diff             @@
##           master     #370      +/-   ##
==========================================
- Coverage   75.82%   74.48%   -1.34%     
==========================================
  Files          55       58       +3     
  Lines        3747     3967     +220     
==========================================
+ Hits         2841     2955     +114     
- Misses        906     1012     +106