Sourcery refactored master branch

[sourcery-ai]

Branch master refactored by Sourcery.

If you're happy with these changes, merge this Pull Request using the Squash and merge strategy.

See our documentation here.

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To manually merge these changes, make sure you're on the master branch, then run:

git fetch origin sourcery/master
git merge --ff-only FETCH_HEAD
git reset HEAD^

Help us improve this pull request!

[sourcery-ai]

Function _repr_datatable_ refactored with the following changes:

• Add single value to dictionary directly rather than using update() (simplify-dictionary-update)
• Move assignments closer to their usage (move-assign)
• Split conditional into multiple branches (split-or-ifs)
• Merge duplicate blocks in conditional (merge-duplicate-blocks)
• Replace multiple comparisons of same variable with in operator [×2] (merge-comparisons)
• Remove redundant conditional [×2] (remove-redundant-if)

[sourcery-ai]

Function _smart_ceil refactored with the following changes:

• Remove unnecessary casts to int, str, float or bool (remove-unnecessary-cast)