Move from pyenv + pip to Pipenv as the new development environment solution

• https://docs.pipenv.org/

• https://github.com/pypa/pipenv

• Move to this solution.

• Update installation documentation replacing current pip + virtualenv setup.

changed the description

changed title from Manage dependencies with pipenv to Manage dependencies with pipenv + use it as default install solution

mentioned in commit 24b743c7

mentioned in commit 9c56b1c8

mentioned in commit 4e1a9e4d

mentioned in issue #80 (closed)

closed

changed title from Manage dependencies with pipenv + use it as default install solution to Move from pyenv + pip to Pipenv as the new development environment solution

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