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Re: [atomic-devel] [fedora-atomic f23] remove Python source files

Daniel J Walsh <dwalsh redhat com> writes:

> On 12/03/2015 06:49 AM, Fabian Deutsch wrote:
>> On Thu, Dec 3, 2015 at 12:25 PM, Giuseppe Scrivano <gscrivan redhat com> wrote:
>>> Fabian Deutsch <fdeutsch redhat com> writes:
>>>> On Wed, Dec 2, 2015 at 1:54 PM, Giuseppe Scrivano <gscrivan redhat com> wrote:
>>>>>> The removal caused some trouble:
>>>>>> - removing informations from drawbacks
>>>>>> - Making debugging - testing changes - very cumbersome
>>>>>> - Breaks "plugin" mechanisms of a surprising large number of tools
>>>>>> In our next release we will finally re-introduce .py files again:
>>>>>> Bug 1233106 - [RFE] Remove all kernel, firmware, and .py file blacklisting
>>>>>> I'd suggest to consider and not underestimate these factors.
>>>>> thanks for the feedbacks.  Were .pyc files used instead of the .py
>>>>> version in oVirt?
>>>> We dropped .py and .pyc files - so the .pyo files were kept.
>>>>> IIUIC, pyc files maintain the same information as the
>>>>> original source file, while .pyo files are a optimized version that has
>>>>> not all the original content.  Using the optimized version, I could
>>>>> strip 55 MB of space from the Fedora Atomic image, if I use .pyc then
>>>>> the reduction is only 27 MB.
>>>> What about keeping .py and .pyo, and just drop .pyc?
>>> That could be an option.  The image size I got keeping .py and .pyo is
>>> 15 MB smaller than the original one.
>> Nice. Not as much as 55MB, but still a win.
>> - fabian
> Will this work on an SELinux system?  Will python attempt to create the
> pyc files, when the code is executed?
> SELinux would stop a confined domain from writing to /usr of course, but
> might generate AVC's.  If the file system
> is read/only then it would be a matter of whether the SELinux checks
> happen first or second.

that should not be an issue, the .pyo files will be renamed to .pyc so
Python will see the same set of files as now.


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