twext.enterprise dependency on twistedcaldav (and therefore PyCalendar) causes some problems

[macosforgebot]

exarkun@… originally submitted this as ticket:825

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It's hard to find the version of PyCalendar that twistedcaldav works with. It doesn't appear to be the version at the svn repo referred to by https://pypi.python.org/pypi/Py-Calendar. Using that version fails with an import error for pycalendar.timezonedb.

Since twext.enterprise only depends on twistedcaldav for the definition of SQL_TIMESTAMP_FORMAT (which appears not to be a part of the twistedcaldav.dateops public interface anyway) this seems like an easy dependency to remove.

I'm all for code re-use and depending on other libraries. But only if those other libraries are actually available.

An equally satisfying resolution to this issue would be for twext.enterprise to depend on a particular, documented, released version of PyCalendar.

[macosforgebot]

exarkun@… originally submitted this as attachment:define-own-timestamp.patch:⁠ticket:825

• Attachment define-own-timestamp.patch (466 bytes) added

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This patch re-defines the value imported from twistedcaldav, removing the twistedcaldav dependency that twext.enterprise currently has

[macosforgebot]

@wsanchez originally submitted this as comment:1:⁠ticket:825

• Status changed from new to closed
• Resolution set to Software changed

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r10290 seems to have made the proposed change. That’s dated Jan 4, 2013, so… what version of the code are you using?

[macosforgebot]

exarkun@… originally submitted this as comment:2:⁠ticket:825

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Oops, I was using the 4.2 release. Thanks.