Hi Alex
On Thu, Aug 27, 2020 at 4:59 PM Alexander Kanavin <[email protected]>
wrote:
>
> I am able to execute that exact same command without any errors. How can
this be reproduced?
Did you run it on Ubuntu 20.04 with Python 3.8?
» python3 --version
Python 3.8.2
» apt-cache policy python3.8
python3.8:
Installed: 3.8.2-1ubuntu1.2
Candidate: 3.8.2-1ubuntu1.2
Version table:
*** 3.8.2-1ubuntu1.2 500
500 http://ch.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu focal-security/main amd64
Packages
100 /var/lib/dpkg/status
3.8.2-1ubuntu1 500
500 http://ch.archive.ubuntu.com/ubuntu focal/main amd64 Packages
Apparently one of ubuntu1.2 patches touches Lib/sysconfig.py:
» cat ./debian/patches/sysconfigdata-name.diff
--- a/Lib/sysconfig.py
+++ b/Lib/sysconfig.py
@@ -345,9 +345,8 @@ def get_makefile_filename():
def _get_sysconfigdata_name():
return os.environ.get('_PYTHON_SYSCONFIGDATA_NAME',
- '_sysconfigdata_{abi}_{platform}_{multiarch}'.format(
+ '_sysconfigdata_{abi}_{multiarch}'.format(
abi=sys.abiflags,
- platform=sys.platform,
multiarch=getattr(sys.implementation, '_multiarch', ''),
))
> Note that we already had the same patch proposed earlier and it was
rejected, as the problem
> pops up in various different places and needs to be understood and solved
properly.
Haven't seen patches for devtool, thanks for the info.
> Alex
>
> On Thu, 27 Aug 2020 at 15:11, gr embeter <[email protected]> wrote:
>>
>> On Ubuntu 20.04.1 LTS with Python 3.8.2 "devtool modify" fails with
>> Exception: ModuleNotFoundError: No module named '_sysconfigdata'
>>
>> e.g.: devtool modify --no-same-dir --branch fit u-boot
~/ws/w/dtool/u-boot-fit
>>
>> ERROR: Error executing a python function in exec_python_func()
autogenerated:
>>
>> The stack trace of python calls that resulted in this exception/failure
was:
>> File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
>> 0001:
>> *** 0002:devtool_post_unpack(d)
>> 0003:
>> [...]
>> File: '/usr/lib/python3.8/sysconfig.py', lineno: 421, function:
_init_posix
>> 0417:def _init_posix(vars):
>> 0418: """Initialize the module as appropriate for POSIX
systems."""
>> 0419: # _sysconfigdata is generated at build time, see
_generate_posix_vars()
>> 0420: name = _get_sysconfigdata_name()
>> *** 0421: _temp = __import__(name, globals(), locals(),
['build_time_vars'], 0)
>> 0422: build_time_vars = _temp.build_time_vars
>> 0423: vars.update(build_time_vars)
>> 0424:
>> 0425:def _init_non_posix(vars):
>> Exception: ModuleNotFoundError: No module named '_sysconfigdata'
>>
>> It happens because u-boot (and likely other recipes) eventually inherits
>> python3native.bbclass that sets
_PYTHON_SYSCONFIGDATA_NAME="_sysconfigdata"
>> and this affects host Python.
>>
>> Hence, unset _PYTHON_SYSCONFIGDATA_NAME for devtool completely.
>>
>> Signed-off-by: Grygorii Tertychnyi <
[email protected]>
>> ---
>> meta/classes/devtool-source.bbclass | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/meta/classes/devtool-source.bbclass
b/meta/classes/devtool-source.bbclass
>> index 280d6009f3c2..95d6fe7a29e8 100644
>> --- a/meta/classes/devtool-source.bbclass
>> +++ b/meta/classes/devtool-source.bbclass
>> @@ -22,6 +22,8 @@
>> DEVTOOL_TEMPDIR ?= ""
>> DEVTOOL_PATCH_SRCDIR = "${DEVTOOL_TEMPDIR}/patchworkdir"
>>
>> +# host Python fails to import correct _sysconfigdata if this variable
is set
>> +_PYTHON_SYSCONFIGDATA_NAME[unexport] = "1"
>>
>> python() {
>> tempdir = d.getVar('DEVTOOL_TEMPDIR')
>> --
>> 2.25.1
>>
>>
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