def get_requested_versions(impl, vrange=None, available=None):
"""Return a set of requested and supported Python versions.
:param impl: interpreter implementation
:param available: if set to `True`, return installed versions only,
if set to `False`, return requested versions that are not installed.
By default returns all requested versions.
:type available: bool
>>> sorted(get_requested_versions('cpython3', '')) == sorted(supported('cpython3'))
True
>>> sorted(get_requested_versions('cpython3', '-')) == sorted(supported('cpython3'))
True
>>> get_requested_versions('cpython3', '>= 5.0')
set()
"""
if isinstance(vrange, str):
vrange = VersionRange(vrange)
if not vrange:
versions = set(supported(impl))
else:
minv = Version(major=0,
minor=0) if vrange.minver is None else vrange.minver
maxv = Version(major=99,
minor=99) if vrange.maxver is None else vrange.maxver
if minv == maxv:
versions = set([minv] if minv in supported(impl) else tuple())
else:
versions = set(v for v in supported(impl) if minv <= v < maxv)
if available is not None:
# to avoid circular imports
global Interpreter
if Interpreter is None:
from dhpython.interpreter import Interpreter
if available:
interpreter = Interpreter(impl=impl)
versions = set(v for v in versions if exists(interpreter.binary(v)))
elif available is False:
interpreter = Interpreter(impl=impl)
versions = set(v for v in versions
if not exists(interpreter.binary(v)))
return versions
def get_requested_versions(impl, vrange=None, available=None):
"""Return a set of requested and supported Python versions.
:param impl: interpreter implementation
:param available: if set to `True`, return installed versions only,
if set to `False`, return requested versions that are not installed.
By default returns all requested versions.
:type available: bool
>>> sorted(get_requested_versions('cpython3', '')) == sorted(supported('cpython3'))
True
>>> sorted(get_requested_versions('cpython3', '-')) == sorted(supported('cpython3'))
True
>>> get_requested_versions('cpython3', '>= 5.0')
set()
"""
if isinstance(vrange, str):
vrange = VersionRange(vrange)
if not vrange:
versions = set(supported(impl))
else:
minv = Version(major=0, minor=0) if vrange.minver is None else vrange.minver
maxv = Version(major=99, minor=99) if vrange.maxver is None else vrange.maxver
if minv == maxv:
versions = set([minv] if minv in supported(impl) else tuple())
else:
versions = set(v for v in supported(impl) if minv <= v < maxv)
if available is not None:
# to avoid circular imports
global Interpreter
if Interpreter is None:
from dhpython.interpreter import Interpreter
if available:
interpreter = Interpreter(impl=impl)
versions = set(v for v in versions
if exists(interpreter.binary(v)))
elif available is False:
interpreter = Interpreter(impl=impl)
versions = set(v for v in versions
if not exists(interpreter.binary(v)))
return versions
def test_version(self):
i = Interpreter(impl='cpython2')
self.assertEqual(str(i), 'python')
self.assertEqual(i.binary('2.7'), '/usr/bin/python2.7')
def test_version(self):
i = Interpreter(impl='cpython2')
self.assertEqual(str(i), 'python')
self.assertEqual(i.binary('2.7'), '/usr/bin/python2.7')
