2025-09-08T05:40:02,962 Created temporary directory: /tmp/pip-build-tracker-i6woisa0 2025-09-08T05:40:02,962 Initialized build tracking at /tmp/pip-build-tracker-i6woisa0 2025-09-08T05:40:02,963 Created build tracker: /tmp/pip-build-tracker-i6woisa0 2025-09-08T05:40:02,963 Entered build tracker: /tmp/pip-build-tracker-i6woisa0 2025-09-08T05:40:02,963 Created temporary directory: /tmp/pip-wheel-f4esjnbn 2025-09-08T05:40:02,966 Created temporary directory: /tmp/pip-ephem-wheel-cache-ms16t421 2025-09-08T05:40:03,022 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple 2025-09-08T05:40:03,024 2 location(s) to search for versions of fio-shipping-fedex: 2025-09-08T05:40:03,024 * https://pypi.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,024 * https://www.piwheels.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,025 Fetching project page and analyzing links: https://pypi.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,025 Getting page https://pypi.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,026 Found index url https://pypi.org/simple/ 2025-09-08T05:40:03,094 Fetched page https://pypi.org/simple/fio-shipping-fedex/ as application/vnd.pypi.simple.v1+json 2025-09-08T05:40:03,096 Found link https://files.pythonhosted.org/packages/1b/61/7d5b2895c8c1f7e5013e92d08003e166035160a5f36b3fab3cb7446d6088/fio_shipping_fedex-3.4.1.0.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.1.0 2025-09-08T05:40:03,097 Found link https://files.pythonhosted.org/packages/3f/b7/529bbfa14c40eb6cec24c59474417e32e07f01f85d6b1b85e4da9fcc23ea/fio_shipping_fedex-3.4.1.1.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.1.1 2025-09-08T05:40:03,097 Found link https://files.pythonhosted.org/packages/22/21/3c2ceef293fd7c0c9916a0d7346f3fd716a5e4c4321c8fb5c694bb97a907/fio_shipping_fedex-3.4.1.2.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.1.2 2025-09-08T05:40:03,097 Found link https://files.pythonhosted.org/packages/54/58/9aac1ba093aadf5ae0be4e9d44d0177b49b7edd244b4c1b8316e6753844e/fio_shipping_fedex-3.4.1.3.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.1.3 2025-09-08T05:40:03,097 Found link https://files.pythonhosted.org/packages/d8/14/64c6eab87318c015b9a827c1f5b1eaa2f9551421696fe019f8e215e05f1e/fio_shipping_fedex-3.4.2.0.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.2.0 2025-09-08T05:40:03,098 Found link https://files.pythonhosted.org/packages/a0/ab/464af2d964614155f53d83cc08ca9b940ba16207fd06121e38e83c64702c/fio_shipping_fedex-3.4.2.1.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.2.1 2025-09-08T05:40:03,098 Found link https://files.pythonhosted.org/packages/68/66/e5068a70677302811e380183a294b1154c34084f7bacfd3087c737baea25/fio_shipping_fedex-3.4.3.0.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.3.0 2025-09-08T05:40:03,098 Found link https://files.pythonhosted.org/packages/d4/d8/d4d9b5240e25727cc6b689286b4add143ef81a403c5eafa762841e2e358a/fio_shipping_fedex-3.4.3.1.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.3.1 2025-09-08T05:40:03,098 Found link https://files.pythonhosted.org/packages/74/69/e689e422285e5cbce278bdbf0c93bef3a8fed93b922a8abaf5c4f65fe5fa/fio_shipping_fedex-3.4.4.0.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.4.0 2025-09-08T05:40:03,098 Found link https://files.pythonhosted.org/packages/99/f5/73e0329224647f11becd8efcd8c152f0042c49322ec7b4864627bf5d0c49/fio_shipping_fedex-3.4.5.0.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.5.0 2025-09-08T05:40:03,099 Found link https://files.pythonhosted.org/packages/33/45/721960e71f2d746d0580baab47c035d44e0750117e0cb0a5a871e72f364e/fio_shipping_fedex-3.4.5.1.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 3.4.5.1 2025-09-08T05:40:03,099 Found link https://files.pythonhosted.org/packages/55/4d/6615682418b55938bc6a456e53f796d7b4e46b2e69b23545852087bf8734/fio_shipping_fedex-4.0.0.1.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 4.0.0.1 2025-09-08T05:40:03,099 Found link https://files.pythonhosted.org/packages/87/d9/d91f1fa034894f52ca22d979848377d2f597c43bad65fd490fece4699460/fio_shipping_fedex-4.0.0.2.tar.gz (from https://pypi.org/simple/fio-shipping-fedex/), version: 4.0.0.2 2025-09-08T05:40:03,100 Fetching project page and analyzing links: https://www.piwheels.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,100 Getting page https://www.piwheels.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,101 Found index url https://www.piwheels.org/simple/ 2025-09-08T05:40:03,189 Fetched page https://www.piwheels.org/simple/fio-shipping-fedex/ as text/html 2025-09-08T05:40:03,190 Skipping link: not a file: https://www.piwheels.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,190 Skipping link: not a file: https://pypi.org/simple/fio-shipping-fedex/ 2025-09-08T05:40:03,215 Given no hashes to check 1 links for project 'fio-shipping-fedex': discarding no candidates 2025-09-08T05:40:03,216 Collecting fio-shipping-fedex==3.4.5.0 2025-09-08T05:40:03,217 Created temporary directory: /tmp/pip-unpack-n7igbkwu 2025-09-08T05:40:03,354 Downloading fio_shipping_fedex-3.4.5.0.tar.gz (11 kB) 2025-09-08T05:40:03,384 Added fio-shipping-fedex==3.4.5.0 from https://files.pythonhosted.org/packages/99/f5/73e0329224647f11becd8efcd8c152f0042c49322ec7b4864627bf5d0c49/fio_shipping_fedex-3.4.5.0.tar.gz to build tracker '/tmp/pip-build-tracker-i6woisa0' 2025-09-08T05:40:03,385 Running setup.py (path:/tmp/pip-wheel-f4esjnbn/fio-shipping-fedex_6f69232ec14b4adeb303bfc8bd55ef17/setup.py) egg_info for package fio-shipping-fedex 2025-09-08T05:40:03,385 Created temporary directory: /tmp/pip-pip-egg-info-jqf06ara 2025-09-08T05:40:03,385 Preparing metadata (setup.py): started 2025-09-08T05:40:03,386 Running command python setup.py egg_info 2025-09-08T05:40:03,893 Traceback (most recent call last): 2025-09-08T05:40:03,895 File "", line 2, in 2025-09-08T05:40:03,895 exec(compile(''' 2025-09-08T05:40:03,895 ~~~~^^^^^^^^^^^^ 2025-09-08T05:40:03,895 # This is -- a caller that pip uses to run setup.py 2025-09-08T05:40:03,895 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,895 ...<32 lines>... 2025-09-08T05:40:03,896 exec(compile(setup_py_code, filename, "exec")) 2025-09-08T05:40:03,896 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,896 ''' % ('/tmp/pip-wheel-f4esjnbn/fio-shipping-fedex_6f69232ec14b4adeb303bfc8bd55ef17/setup.py',), "", "exec")) 2025-09-08T05:40:03,896 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,896 File "", line 35, in 2025-09-08T05:40:03,896 File "/tmp/pip-wheel-f4esjnbn/fio-shipping-fedex_6f69232ec14b4adeb303bfc8bd55ef17/setup.py", line 4, in 2025-09-08T05:40:03,896 import ConfigParser 2025-09-08T05:40:03,896 ModuleNotFoundError: No module named 'ConfigParser' 2025-09-08T05:40:03,980 ERROR: python setup.py egg_info exited with 1 2025-09-08T05:40:03,991 [bold magenta]full command[/]: [blue]/usr/bin/python3 -c ' 2025-09-08T05:40:03,991 exec(compile('"'"''"'"''"'"' 2025-09-08T05:40:03,991 # This is -- a caller that pip uses to run setup.py 2025-09-08T05:40:03,991 # 2025-09-08T05:40:03,991 # - It imports setuptools before invoking setup.py, to enable projects that directly 2025-09-08T05:40:03,991 # import from `distutils.core` to work with newer packaging standards. 2025-09-08T05:40:03,991 # - It provides a clear error message when setuptools is not installed. 2025-09-08T05:40:03,991 # - It sets `sys.argv[0]` to the underlying `setup.py`, when invoking `setup.py` so 2025-09-08T05:40:03,991 # setuptools doesn'"'"'t think the script is `-c`. This avoids the following warning: 2025-09-08T05:40:03,991 # manifest_maker: standard file '"'"'-c'"'"' not found". 2025-09-08T05:40:03,991 # - It generates a shim setup.py, for handling setup.cfg-only projects. 2025-09-08T05:40:03,991 import os, sys, tokenize, traceback 2025-09-08T05:40:03,991 2025-09-08T05:40:03,991 try: 2025-09-08T05:40:03,991 import setuptools 2025-09-08T05:40:03,991 except ImportError: 2025-09-08T05:40:03,991 print( 2025-09-08T05:40:03,991 "ERROR: Can not execute `setup.py` since setuptools failed to import in " 2025-09-08T05:40:03,991 "the build environment with exception:", 2025-09-08T05:40:03,991 file=sys.stderr, 2025-09-08T05:40:03,991 ) 2025-09-08T05:40:03,991 traceback.print_exc() 2025-09-08T05:40:03,991 sys.exit(1) 2025-09-08T05:40:03,991 2025-09-08T05:40:03,991 __file__ = %r 2025-09-08T05:40:03,991 sys.argv[0] = __file__ 2025-09-08T05:40:03,991 2025-09-08T05:40:03,991 if os.path.exists(__file__): 2025-09-08T05:40:03,991 filename = __file__ 2025-09-08T05:40:03,991 with tokenize.open(__file__) as f: 2025-09-08T05:40:03,991 setup_py_code = f.read() 2025-09-08T05:40:03,991 else: 2025-09-08T05:40:03,991 filename = "" 2025-09-08T05:40:03,991 setup_py_code = "from setuptools import setup; setup()" 2025-09-08T05:40:03,991 2025-09-08T05:40:03,991 exec(compile(setup_py_code, filename, "exec")) 2025-09-08T05:40:03,991 '"'"''"'"''"'"' % ('"'"'/tmp/pip-wheel-f4esjnbn/fio-shipping-fedex_6f69232ec14b4adeb303bfc8bd55ef17/setup.py'"'"',), "", "exec"))' egg_info --egg-base /tmp/pip-pip-egg-info-jqf06ara[/] 2025-09-08T05:40:03,992 [bold magenta]cwd[/]: /tmp/pip-wheel-f4esjnbn/fio-shipping-fedex_6f69232ec14b4adeb303bfc8bd55ef17/ 2025-09-08T05:40:03,992 Preparing metadata (setup.py): finished with status 'error' 2025-09-08T05:40:03,993 ERROR: metadata generation failed 2025-09-08T05:40:03,999 Exception information: 2025-09-08T05:40:03,999 Traceback (most recent call last): 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/operations/build/metadata_legacy.py", line 63, in generate_metadata 2025-09-08T05:40:03,999 call_subprocess( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 args, 2025-09-08T05:40:03,999 ^^^^^ 2025-09-08T05:40:03,999 ...<2 lines>... 2025-09-08T05:40:03,999 spinner=spinner, 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/utils/subprocess.py", line 209, in call_subprocess 2025-09-08T05:40:03,999 raise error 2025-09-08T05:40:03,999 pip._internal.exceptions.InstallationSubprocessError: python setup.py egg_info exited with 1 2025-09-08T05:40:03,999 2025-09-08T05:40:03,999 The above exception was the direct cause of the following exception: 2025-09-08T05:40:03,999 2025-09-08T05:40:03,999 Traceback (most recent call last): 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 105, in _run_wrapper 2025-09-08T05:40:03,999 status = _inner_run() 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 96, in _inner_run 2025-09-08T05:40:03,999 return self.run(options, args) 2025-09-08T05:40:03,999 ~~~~~~~~^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/cli/req_command.py", line 68, in wrapper 2025-09-08T05:40:03,999 return func(self, options, args) 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/commands/wheel.py", line 147, in run 2025-09-08T05:40:03,999 requirement_set = resolver.resolve(reqs, check_supported_wheels=True) 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 96, in resolve 2025-09-08T05:40:03,999 result = self._result = resolver.resolve( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 collected.requirements, max_rounds=limit_how_complex_resolution_can_be 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 515, in resolve 2025-09-08T05:40:03,999 state = resolution.resolve(requirements, max_rounds=max_rounds) 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 388, in resolve 2025-09-08T05:40:03,999 self._add_to_criteria(self.state.criteria, r, parent=None) 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 141, in _add_to_criteria 2025-09-08T05:40:03,999 if not criterion.candidates: 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/structs.py", line 194, in __bool__ 2025-09-08T05:40:03,999 return bool(self._sequence) 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 163, in __bool__ 2025-09-08T05:40:03,999 self._bool = any(self) 2025-09-08T05:40:03,999 ~~~^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 147, in 2025-09-08T05:40:03,999 return (c for c in iterator if id(c) not in self._incompatible_ids) 2025-09-08T05:40:03,999 ^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 37, in _iter_built 2025-09-08T05:40:03,999 candidate = func() 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 187, in _make_candidate_from_link 2025-09-08T05:40:03,999 base: Optional[BaseCandidate] = self._make_base_candidate_from_link( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 link, template, name, version 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 233, in _make_base_candidate_from_link 2025-09-08T05:40:03,999 self._link_candidate_cache[link] = LinkCandidate( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 link, 2025-09-08T05:40:03,999 ^^^^^ 2025-09-08T05:40:03,999 ...<3 lines>... 2025-09-08T05:40:03,999 version=version, 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 306, in __init__ 2025-09-08T05:40:03,999 super().__init__( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 link=link, 2025-09-08T05:40:03,999 ^^^^^^^^^^ 2025-09-08T05:40:03,999 ...<4 lines>... 2025-09-08T05:40:03,999 version=version, 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 159, in __init__ 2025-09-08T05:40:03,999 self.dist = self._prepare() 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 236, in _prepare 2025-09-08T05:40:03,999 dist = self._prepare_distribution() 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 317, in _prepare_distribution 2025-09-08T05:40:03,999 return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True) 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 532, in prepare_linked_requirement 2025-09-08T05:40:03,999 return self._prepare_linked_requirement(req, parallel_builds) 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 647, in _prepare_linked_requirement 2025-09-08T05:40:03,999 dist = _get_prepared_distribution( 2025-09-08T05:40:03,999 req, 2025-09-08T05:40:03,999 ...<3 lines>... 2025-09-08T05:40:03,999 self.check_build_deps, 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 71, in _get_prepared_distribution 2025-09-08T05:40:03,999 abstract_dist.prepare_distribution_metadata( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 finder, build_isolation, check_build_deps 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/distributions/sdist.py", line 69, in prepare_distribution_metadata 2025-09-08T05:40:03,999 self.req.prepare_metadata() 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~~^^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/req/req_install.py", line 581, in prepare_metadata 2025-09-08T05:40:03,999 self.metadata_directory = generate_metadata_legacy( 2025-09-08T05:40:03,999 ~~~~~~~~~~~~~~~~~~~~~~~~^ 2025-09-08T05:40:03,999 build_env=self.build_env, 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ...<3 lines>... 2025-09-08T05:40:03,999 details=details, 2025-09-08T05:40:03,999 ^^^^^^^^^^^^^^^^ 2025-09-08T05:40:03,999 ) 2025-09-08T05:40:03,999 ^ 2025-09-08T05:40:03,999 File "/usr/lib/python3/dist-packages/pip/_internal/operations/build/metadata_legacy.py", line 70, in generate_metadata 2025-09-08T05:40:03,999 raise MetadataGenerationFailed(package_details=details) from error 2025-09-08T05:40:03,999 pip._internal.exceptions.MetadataGenerationFailed: metadata generation failed 2025-09-08T05:40:04,023 Removed fio-shipping-fedex==3.4.5.0 from https://files.pythonhosted.org/packages/99/f5/73e0329224647f11becd8efcd8c152f0042c49322ec7b4864627bf5d0c49/fio_shipping_fedex-3.4.5.0.tar.gz from build tracker '/tmp/pip-build-tracker-i6woisa0' 2025-09-08T05:40:04,023 Removed build tracker: '/tmp/pip-build-tracker-i6woisa0'