def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
import certifi
return certifi.where()
except (ImportError, ResolutionError, ExtractionError):
return None
python类ResolutionError()的实例源码
def is_installed(requirement):
try:
pkg_resources.require(requirement)
except pkg_resources.ResolutionError:
return False
else:
return True
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name=='nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
import certifi
return certifi.where()
except (ImportError, ResolutionError, ExtractionError):
return None
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
import certifi
return certifi.where()
except (ImportError, ResolutionError, ExtractionError):
return None
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
import certifi
return certifi.where()
except (ImportError, ResolutionError, ExtractionError):
return None
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name=='nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def load_consensus_plugin(name=None):
"""Find and load the chosen consensus plugin.
Args:
name (string): the name of the entry_point, as advertised in the
setup.py of the providing package.
Returns:
an uninstantiated subclass of ``bigchaindb.consensus.AbstractConsensusRules``
"""
if not name:
return BaseConsensusRules
# TODO: This will return the first plugin with group `bigchaindb.consensus`
# and name `name` in the active WorkingSet.
# We should probably support Requirements specs in the config, e.g.
# consensus_plugin: 'my-plugin-package==0.0.1;default'
plugin = None
for entry_point in iter_entry_points('bigchaindb.consensus', name):
plugin = entry_point.load()
# No matching entry_point found
if not plugin:
raise ResolutionError(
'No plugin found in group `bigchaindb.consensus` with name `{}`'.
format(name))
# Is this strictness desireable?
# It will probably reduce developer headaches in the wild.
if not issubclass(plugin, (BaseConsensusRules,)):
raise TypeError('object of type "{}" does not implement `bigchaindb.'
'consensus.BaseConsensusRules`'.format(type(plugin)))
return plugin
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name=='nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
return pkg_resources.resource_filename('certifi', 'cacert.pem')
except (ImportError, ResolutionError, ExtractionError):
return None
def _certifi_where():
try:
return __import__('certifi').where()
except (ImportError, ResolutionError, ExtractionError):
pass
def find_ca_bundle():
"""Return an existing CA bundle path, or None"""
if os.name == 'nt':
return get_win_certfile()
else:
for cert_path in cert_paths:
if os.path.isfile(cert_path):
return cert_path
try:
import certifi
return certifi.where()
except (ImportError, ResolutionError, ExtractionError):
return None
