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Use version pinning for Python requirements #56

chris007de opened this Issue Jun 14, 2016 · 1 comment


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chris007de commented Jun 14, 2016

As it already happened to cause some trouble end of last year, I propose to use version pinning for Python requirements instead of the ">=" style.
This is not applicable to current master, but I saw it on some of the branches.

We ran into problems as we used the requirement Pillow>=1.6.5 (or something like that) and Pillow did an API change in version 3.0.0. New users installed ayab and its requirements, but it did not run, as the automatically installed Pillow version was "too new". So the software did break due to third party influence, which should not be possible.
Some more reading on this topic:


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niccokunzmann Jun 21, 2016


This is also documented in the DEVELOP.rst file.


niccokunzmann commented Jun 21, 2016

This is also documented in the DEVELOP.rst file.

@kirstin kirstin closed this Jun 21, 2016

@kirstin kirstin removed the in progress label Jun 21, 2016

@niccokunzmann niccokunzmann referenced this issue Jun 18, 2017


Python Package Version Pinning #57

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@meets2tarun meets2tarun referenced this issue Sep 24, 2017


Unnecessary Redirecting of Requirement File #174

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