Breaking host python in ubuntu 18.04-20.10 like this is very easy, just
exporting _PYTHON_SYSCONFIGDATA_NAME like OE tasks do is enough.
I can reproduce it e.g. with command_not_found_handle in ubuntu:
$ export _PYTHON_SYSCONFIGDATA_NAME="_sysconfigdata"
$ command_not_found_handle foo
Failed to import the site module
Traceback (most recent call last):
File "/usr/lib/python3.6/site.py", line 570, in <module>
main()
File "/usr/lib/python3.6/site.py", line 556, in main
known_paths = addusersitepackages(known_paths)
File "/usr/lib/python3.6/site.py", line 288, in addusersitepackages
user_site = getusersitepackages()
File "/usr/lib/python3.6/site.py", line 264, in getusersitepackages
user_base = getuserbase() # this will also set USER_BASE
File "/usr/lib/python3.6/site.py", line 254, in getuserbase
USER_BASE = get_config_var('userbase')
File "/usr/lib/python3.6/sysconfig.py", line 607, in get_config_var
return get_config_vars().get(name)
File "/usr/lib/python3.6/sysconfig.py", line 550, in get_config_vars
_init_posix(_CONFIG_VARS)
File "/usr/lib/python3.6/sysconfig.py", line 421, in _init_posix
_temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
ModuleNotFoundError: No module named '_sysconfigdata'
$ unset _PYTHON_SYSCONFIGDATA_NAME
$ command_not_found_handle foo
Command 'foo' not found, did you mean:
command 'fox' from deb objcryst-fox
command 'fio' from deb fio
command 'goo' from deb goo
command 'fop' from deb fop
command 'fog' from deb ruby-fog
command 'woo' from deb python-woo
command 'fgo' from deb fgo
Try: sudo apt install <deb name>
So whenever _PYTHON_SYSCONFIGDATA_NAME is exported you need to ensure that
you're exclusively using python from python3native any call from this
environment to host python (other than python3 --version: Python 3.6.9).
With 20.04 it's usually more common to see, because default python on host
will be most likely python3 not python2 which doesn't have this issue.
On Thu, Nov 12, 2020 at 12:38 PM Alexander Kanavin <[email protected]>
wrote:
> If you can provide exact steps to reproduce (the recipe is not available
> in oe-core), I can take a look. It's been reported plenty of times, but
> always with something not in core and not easily available.
>
> Alex
>
> On Thu, 12 Nov 2020 at 12:07, <[email protected]> wrote:
>
>> Here are two other threads on the same topic. I've also run into this.
>>
>> https://lists.yoctoproject.org/g/yocto/topic/74637733#51189
>>
>> and
>>
>>
>> https://lists.yoctoproject.org/g/yocto/message/50856?p=,,,20,0,0,0::Created,,devtool,20,2,0,77178360
>>
>> Regards
>> //Ernst
>>
>>
>>
>
>
>
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