"""
optionals Module
----------------
This module is a helper for handing optional packages.
Optional packages are not included in ``setup.py``.
So :exc:`.OptionalPackageRequirementError` will be raised if requested package
is not provided.
"""
from .exceptions import OptionalPackageRequirementError
# requests-aws4auth
try:
from requests_aws4auth import AWS4Auth
except ImportError: # pragma: no cover
AWS4Auth = None
[docs]def ensure_aws4auth():
"""
.. warning:: :exc:`.OptionalPackageRequirementError` will be raised if
``requests-aws4auth`` is not installed.
"""
if AWS4Auth is None: # pragma: no cover
raise OptionalPackageRequirementError('requests-aws4auth')
# requests-aliyun
try:
from aliyunauth import OssAuth as OS2Auth
except ImportError: # pragma: no cover
OS2Auth = None
[docs]def ensure_os2auth():
"""
.. warning:: :exc:`.OptionalPackageRequirementError` will be raised if
``requests-aliyun`` is not installed.
"""
if OS2Auth is None: # pragma: no cover
raise OptionalPackageRequirementError('requests-aliyun')
# paramiko
try:
import paramiko
except ImportError: # pragma: no cover
paramiko = None
[docs]def ensure_paramiko():
"""
.. warning:: :exc:`.OptionalPackageRequirementError` will be raised if
``paramiko`` is not installed.
"""
if paramiko is None: # pragma: no cover
raise OptionalPackageRequirementError('paramiko')