103 lines
2.9 KiB
Python
103 lines
2.9 KiB
Python
"""Generate and work with PEP 425 Compatibility Tags."""
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import sys
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import warnings
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try:
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import sysconfig
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except ImportError: # pragma nocover
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# Python < 2.7
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import distutils.sysconfig as sysconfig
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import distutils.util
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def get_abbr_impl():
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"""Return abbreviated implementation name."""
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if hasattr(sys, 'pypy_version_info'):
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pyimpl = 'pp'
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elif sys.platform.startswith('java'):
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pyimpl = 'jy'
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elif sys.platform == 'cli':
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pyimpl = 'ip'
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else:
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pyimpl = 'cp'
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return pyimpl
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def get_impl_ver():
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"""Return implementation version."""
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return ''.join(map(str, sys.version_info[:2]))
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def get_platform():
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"""Return our platform name 'win32', 'linux_x86_64'"""
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# XXX remove distutils dependency
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return distutils.util.get_platform().replace('.', '_').replace('-', '_')
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def get_supported(versions=None, noarch=False):
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"""Return a list of supported tags for each version specified in
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`versions`.
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:param versions: a list of string versions, of the form ["33", "32"],
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or None. The first version will be assumed to support our ABI.
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"""
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supported = []
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# Versions must be given with respect to the preference
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if versions is None:
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versions = []
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major = sys.version_info[0]
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# Support all previous minor Python versions.
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for minor in range(sys.version_info[1], -1, -1):
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versions.append(''.join(map(str, (major, minor))))
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impl = get_abbr_impl()
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abis = []
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try:
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soabi = sysconfig.get_config_var('SOABI')
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except IOError as e: # Issue #1074
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warnings.warn("{0}".format(e), RuntimeWarning)
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soabi = None
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if soabi and soabi.startswith('cpython-'):
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abis[0:0] = ['cp' + soabi.split('-', 1)[-1]]
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abi3s = set()
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import imp
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for suffix in imp.get_suffixes():
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if suffix[0].startswith('.abi'):
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abi3s.add(suffix[0].split('.', 2)[1])
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abis.extend(sorted(list(abi3s)))
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abis.append('none')
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if not noarch:
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arch = get_platform()
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# Current version, current API (built specifically for our Python):
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for abi in abis:
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supported.append(('%s%s' % (impl, versions[0]), abi, arch))
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# No abi / arch, but requires our implementation:
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for i, version in enumerate(versions):
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supported.append(('%s%s' % (impl, version), 'none', 'any'))
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if i == 0:
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# Tagged specifically as being cross-version compatible
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# (with just the major version specified)
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supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
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# No abi / arch, generic Python
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for i, version in enumerate(versions):
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supported.append(('py%s' % (version,), 'none', 'any'))
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if i == 0:
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supported.append(('py%s' % (version[0]), 'none', 'any'))
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return supported
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supported_tags = get_supported()
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supported_tags_noarch = get_supported(noarch=True)
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