Products.pythonscripts

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- Add a ``file`` parameter to factory function ``manage_addPythonScript``
(`45 <https://github.com/zopefoundation/Products.PythonScripts/issues/45>`_)

- Fix ``TypeError`` when updating an existing script from a file
(`43 <https://github.com/zopefoundation/Products.PythonScripts/issues/43>`_)

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- Fix ``PUT`` issues with string encoding.

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- Override ``manage_DAVget`` to get correct editable sources
(`40 <https://github.com/zopefoundation/Products.PythonScripts/issues/40>`_)

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- Prevent ResourceWarning/Error by closing default contents file
(`39 <https://github.com/zopefoundation/Products.PythonScripts/issues/39>`_)

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- Show proper error message for not allowed identifiers.
(`33 <https://github.com/zopefoundation/Products.PythonScripts/issues/33>`_)

- Restore History ZMI tab as Zope is supporting it again.
(`38 <https://github.com/zopefoundation/Products.PythonScripts/issues/38>`_)

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- Make sure a template's ``_body`` attribute is a native string in Python 3
(`30 <https://github.com/zopefoundation/Products.PythonScripts/issues/30>`_)