Configure no longer works after pulling in the latest QEMU commits

Configure no longer works after pulling in the latest QEMU commits

[Hao Xiang]

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Hi,

After pulling in the QEMU latest commits, I can no longer run the
"configure" command. Below is the error message I am seeing. I believe this
is related to this change "configure: create a python venv
unconditionally".
I am running on Debian GNU/Linux 11 (bullseye) and 5.15 kernel version.
What can I do to fix/work around the issue?

Thanks, Hao

$ ~/source/qemu-community-trees/qemu/bin/debug/test$ ../../../configure
--enable-debug --static --disable-gnutls
python determined to be '/usr/bin/python3'
python version: Python 3.9.2
mkvenv: Creating non-isolated virtual environment at 'pyvenv'
Skipping existing file
/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/bin/pip

Skipping existing file
/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/bin/pip3

mkvenv: checking for meson>=0.63.0
Metadata: missing: ['Author'], warnings: []
Metadata: missing: ['Home-page', 'Author'], warnings: []
Metadata: missing: ['Home-page', 'Author'], warnings: []
Not recognised as a requirement: ''
Unexpected line: quitting requirement scan: '[docs]'
Not recognised as a requirement: ''
Unexpected line: quitting requirement scan: '[jedi]'
Not recognised as a requirement: ''
Unexpected line: quitting requirement scan: "[:python_version < '3']"
Metadata: missing: ['Home-page', 'Author'], warnings: []
Not recognised as a requirement: ''
Unexpected line: quitting requirement scan: '[ARC]'
Not recognised as a requirement: ''
Unexpected line: quitting requirement scan: '[DNSSEC]'
mkvenv did not complete successfully:
Traceback (most recent call last):
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 730, in __init__
   self._data = json.loads(data)
  File "/usr/lib/python3.9/json/__init__.py", line 346, in loads
   return _default_decoder.decode(s)
  File "/usr/lib/python3.9/json/decoder.py", line 337, in decode
   obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.9/json/decoder.py", line 355, in raw_decode
   raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/hao.xiang/source/qemu-community-trees/qemu/python/scripts/
mkvenv.py", line 877, in main
   ensure(
  File "/home/hao.xiang/source/qemu-community-trees/qemu/python/scripts/
mkvenv.py", line 768, in ensure
   _do_ensure(dep_specs, online, wheels_dir)
  File "/home/hao.xiang/source/qemu-community-trees/qemu/python/scripts/
mkvenv.py", line 723, in _do_ensure
   dist = dist_path.get_distribution(matcher.name)
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
database.py", line 240, in get_distribution
   self._generate_cache()
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
database.py", line 167, in _generate_cache
   for dist in self._yield_distributions():
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
database.py", line 157, in _yield_distributions
   yield old_dist_class(r.path, self)
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
database.py", line 878, in __init__
   metadata = self._get_metadata(path)
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
database.py", line 958, in _get_metadata
   metadata = Metadata(path=path, scheme='legacy')
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 741, in __init__
   self.validate()
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 958, in validate
   missing, warnings = self._legacy.check(True)
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 522, in check
   self.set_metadata_version()
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 289, in set_metadata_version
   self._fields['Metadata-Version'] = _best_version(self._fields)
  File
"/data00/home/hao.xiang/source/qemu-community-trees/qemu/bin/debug/test/pyvenv/share/python-wheels/distlib-0.2.8-py2.py3-none-any.whl/distlib/
metadata.py", line 167, in _best_version
   raise MetadataConflictError('Unknown metadata set')
pip._vendor.distlib.metadata.MetadataConflictError: Unknown metadata set

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Re: Configure no longer works after pulling in the latest QEMU commits

[Paolo Bonzini]

On 5/19/23 05:00, Hao Xiang wrote:
> Hi,
> 
> After pulling in the QEMU latest commits, I can no longer run the 
> "configure" command. Below is the error message I am seeing. I believe 
> this is related to this change "configure: create a python venv 
> unconditionally".
> I am running on Debian GNU/Linux 11 (bullseye) and 5.15 kernel version.
> What can I do to fix/work around the issue?

Hi,

please try the patch I have Cc'd you on,

"[PATCH] mkvenv: replace distlib.database with importlib.metadata/pkg_resources"

Paolo

Re: [External] Re: Configure no longer works after pulling in the latest QEMU commits

[Hao Xiang]

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Hi Paolo, I have applied this patch locally and I am able to run
"configure" now.
From: "Paolo Bonzini"<pbonzini@redhat.com>
Date: Fri, May 19, 2023, 1:31 AM
Subject: [External] Re: Configure no longer works after pulling in the
latest QEMU commits
To: "Hao Xiang"<hao.xiang@bytedance.com>, "qemu-devel@nongnu.org"<
qemu-devel@nongnu.org>, "jsnow@redhat.com"<jsnow@redhat.com>
On 5/19/23 05:00, Hao Xiang wrote: > Hi, > > After pulling in the QEMU
latest commits, I can no longer run the > "configure" command. Below is the
error message I am seeing. I believe > this is related to this change
"configure: create a python venv > unconditionally". > I am running on
Debian GNU/Linux 11 (bullseye) and 5.15 kernel version. > What can I do to
fix/work around the issue? Hi, please try the patch I have Cc'd you on,
"[PATCH] mkvenv: replace distlib.database with
importlib.metadata/pkg_resources" Paolo

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