def _activate(self):
if not self._working_set:
working_set = WorkingSet([])
# set up the local .pex environment
pex_info = self._pex_info.copy()
pex_info.update(self._pex_info_overrides)
pex_info.merge_pex_path(self._vars.PEX_PATH)
self._envs.append(
PEXEnvironment(self._pex,
pex_info,
interpreter=self._interpreter))
# N.B. by this point, `pex_info.pex_path` will contain a single pex path
# merged from pex_path in `PEX-INFO` and `PEX_PATH` set in the environment.
# `PEX_PATH` entries written into `PEX-INFO` take precedence over those set
# in the environment.
if pex_info.pex_path:
# set up other environments as specified in pex_path
for pex_path in filter(None,
pex_info.pex_path.split(os.pathsep)):
pex_info = PexInfo.from_pex(pex_path)
pex_info.update(self._pex_info_overrides)
self._envs.append(
PEXEnvironment(pex_path,
pex_info,
interpreter=self._interpreter))
# activate all of them
for env in self._envs:
for dist in env.activate():
working_set.add(dist)
self._working_set = working_set
return self._working_set
def _activate(self):
# type: () -> WorkingSet
working_set = WorkingSet([])
# set up the local .pex environment
pex_info = self.pex_info()
self._envs.append(PEXEnvironment(self._pex, pex_info, interpreter=self._interpreter))
# N.B. by this point, `pex_info.pex_path` will contain a single pex path
# merged from pex_path in `PEX-INFO` and `PEX_PATH` set in the environment.
# `PEX_PATH` entries written into `PEX-INFO` take precedence over those set
# in the environment.
if pex_info.pex_path:
# set up other environments as specified in pex_path
for pex_path in filter(None, pex_info.pex_path.split(os.pathsep)):
pex_info = PexInfo.from_pex(pex_path)
pex_info.update(self._pex_info_overrides)
self._envs.append(PEXEnvironment(pex_path, pex_info, interpreter=self._interpreter))
# activate all of them
for env in self._envs:
for dist in env.activate():
working_set.add(dist)
# Ensure that pkg_resources is not imported until at least every pex environment
# (i.e. PEX_PATH) has been merged into the environment
PEXEnvironment.declare_namespace_packages(working_set)
self.patch_pkg_resources(working_set)
return working_set
def _activate(self):
# type: () -> WorkingSet
pex_file = os.path.realpath(self._pex)
self._update_candidate_distributions(
self._load_internal_cache(pex_file, self._pex_info))
is_zipped_pex = os.path.isfile(pex_file)
if not self._pex_info.zip_safe and is_zipped_pex:
explode_dir = self._force_local(pex_file=pex_file,
pex_info=self._pex_info)
# Force subsequent imports to come from the exploded .pex directory rather than the .pex file.
TRACER.log(
"Adding exploded non zip-safe pex to the head of sys.path: %s"
% explode_dir)
sys.path[:] = [
path for path in sys.path if pex_file != os.path.realpath(path)
]
sys.path.insert(0, explode_dir)
self._update_module_paths(pex_file=pex_file)
elif not any(pex_file == os.path.realpath(path) for path in sys.path):
TRACER.log("Adding pex %s to the head of sys.path: %s" %
("file" if is_zipped_pex else "dir", pex_file))
sys.path.insert(0, pex_file)
all_reqs = [
Requirement.parse(req) for req in self._pex_info.requirements
]
working_set = WorkingSet([])
resolved = self._resolve(working_set, all_reqs)
for dist in resolved:
with TRACER.timed("Activating %s" % dist, V=2):
working_set.add(dist)
if self._inherit_path == InheritPath.FALLBACK:
# Prepend location to sys.path.
#
# This ensures that bundled versions of libraries will be used before system-installed
# versions, in case something is installed in both, helping to favor hermeticity in
# the case of non-hermetic PEX files (i.e. those with inherit_path=True).
#
# If the path is not already in sys.path, site.addsitedir will append (not prepend)
# the path to sys.path. But if the path is already in sys.path, site.addsitedir will
# leave sys.path unmodified, but will do everything else it would do. This is not part
# of its advertised contract (which is very vague), but has been verified to be the
# case by inspecting its source for both cpython 2.7 and cpython 3.7.
sys.path.insert(0, dist.location)
else:
sys.path.append(dist.location)
with TRACER.timed("Adding sitedir", V=2):
site.addsitedir(dist.location)
return working_set
def _activate(self):
self.update_candidate_distributions(
self.load_internal_cache(self._pex, self._pex_info))
if not self._pex_info.zip_safe and os.path.isfile(self._pex):
explode_dir = self.force_local(pex_file=self._pex,
pex_info=self._pex_info)
self.update_module_paths(pex_file=self._pex,
explode_dir=explode_dir)
all_reqs = [
Requirement.parse(req) for req in self._pex_info.requirements
]
working_set = WorkingSet([])
resolved = self._resolve(working_set, all_reqs)
for dist in resolved:
with TRACER.timed('Activating %s' % dist, V=2):
working_set.add(dist)
if self._inherit_path == "fallback":
# Prepend location to sys.path.
#
# This ensures that bundled versions of libraries will be used before system-installed
# versions, in case something is installed in both, helping to favor hermeticity in
# the case of non-hermetic PEX files (i.e. those with inherit_path=True).
#
# If the path is not already in sys.path, site.addsitedir will append (not prepend)
# the path to sys.path. But if the path is already in sys.path, site.addsitedir will
# leave sys.path unmodified, but will do everything else it would do. This is not part
# of its advertised contract (which is very vague), but has been verified to be the
# case by inspecting its source for both cpython 2.7 and cpython 3.7.
sys.path.insert(0, dist.location)
else:
sys.path.append(dist.location)
with TRACER.timed('Adding sitedir', V=2):
site.addsitedir(dist.location)
# Delay calling 'self._declare_namespace_packages' until 'sys.path' contains all of the
# resolved dists.
for dist in resolved:
self._declare_namespace_packages(dist)
return working_set