coverage>=4.5.3,<5.2
docutils>=0.15,<0.17
flake8>=3.7,<3.9
pytest>=3.6,<5.5
pytest-cov>=2.7.1,<2.10
isort>=4.3.20,<4.4

coverage>=4.5.3,<5.2
docutils>=0.15,<0.17
flake8>=3.7,<3.9
pytest>=3.6,<5.5
pytest-cov>=2.7.1,<2.10
isort>=4.3.20,<5.1

Update isort requirement from <4.4,>=4.3.20 to >=4.3.20,<5.1
Update isort requirement from <4.4,>=4.3.20 to >=4.3.20,<5.1

Updates the requirements on [isort](https://github.com/timothycrosley/isort) to permit the latest version.
- [Release notes](https://github.com/timothycrosley/isort/releases)
- [Changelog](https://github.com/timothycrosley/isort/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/timothycrosley/isort/compare/4.3.20...5.0.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>