[OpenWrt-Devel] OpenWRT: how to include byte-compile .pyc files into sysupgrade image?

[Alexandru Ardelean]

@Xuebing: so, there doesn't seem to be a very easy way to do this at build time.
I mean, at first, it can seem easy, because all that is needed, is to
add script that compiles here:
https://github.com/openwrt/packages/blob/for-15.05/lang/python/files/python-package.mk#L94

That script needs to recursively compile all .py files and
[optionally]  remove them.
So, feel free to try/hack something for your case.

Maybe a shell script that uses this: http://effbot.org/zone/python-compile.htm

> compile.py
import os
import sys
import py_compile
for file in sys.argv:
    py_compile.compile(file)
    os.remove(file)

find . -name "\.py" | xargs compile.py


For the general case [in trunk], I think I have to start considering
splitting the Python source files and Python byte-compiled files into
2 package types.
There was a older discussion about this ; the idea is to package the
byte coded files, and offer the sources and python source packages.
Example: Have `python` package and `python-sources`  package.
`python` == byte-compiled .pyc files, `python-sources` .py files

Will try to make an effort in the next couple of days to implement the
general solution for this.
But, it's Friday now here, and I usually don't do much in the weekend.
So, hopefully next week I could allocate some time for this.

Thanks
Alex

On Fri, Feb 17, 2017 at 9:42 AM, Xuebing Wang <xbing6 at gmail.com> wrote:
> Hi Alex,
>
> Thanks a lot for your help.  I am using Python 2.7.12, branch chaos_calmer
> from (git://github.com/openwrt/openwrt.git), feeds branch is for-15.05.
>
> Also, I am using Atheros platform based on MIPS architecture.
>
> Thanks again.
>
> xuebing wang
>
>
> On 2017年02月17日 15:31, Alexandru Ardelean wrote:
>>
>> Oh.
>>
>> This is an old topic.
>> Let me think about it, for a bit.
>>
>> Quick q: which Python version are you using and from which repo/branch ?
>> I usually test against trunk.
>>
>> Thanks
>> Alex
>>
>> On Fri, Feb 17, 2017 at 8:40 AM, Xuebing Wang <xbing6 at gmail.com> wrote:
>>>
>>> Hi Community and Alexandru:
>>>
>>> I am using OpenWrt chaos_calmer for an Atheros based platform, we have a
>>> complicated Python application which takes time to run.
>>> - On the target board, I can "python -m compileall ." for Python standard
>>> libraries in directories "/usr/lib/python2.7", and boot time can improve
>>> significantly.
>>>
>>> Would you please advise how can I change in files
>>> feeds/packages/lang/python
>>> to byte-compile Python libraries and include .pyc files in the sysupgrade
>>> image?
>>>
>>> I am using below packages:
>>> CONFIG_PACKAGE_python-base=y
>>> CONFIG_PACKAGE_python-light=y
>>> CONFIG_PACKAGE_python-codecs=y
>>> CONFIG_PACKAGE_python-openssl=y
>>> CONFIG_PACKAGE_python-sqlite3=y
>>> CONFIG_PACKAGE_python-logging=y
>>>
>>> Thanks.
>>> xuebing wang
>>>
>
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