try: # Note: This logic prevents upgrading cryptography on Windows, if imported # as part of pip. from pip._internal.utils.compat import WINDOWS if not WINDOWS: raise ImportError("pip internals: don't import cryptography on Windows") try: import ssl except ImportError: ssl = None if not getattr(ssl, "HAS_SNI", False): from pip._vendor.urllib3.contrib import pyopenssl pyopenssl.inject_into_urllib3() # Check cryptography version from cryptography import __version__ as cryptography_version _check_cryptography(cryptography_version) except ImportError: pass # urllib3's DependencyWarnings should be silenced. from pip._vendor.urllib3.exceptions import DependencyWarning warnings.simplefilter('ignore', DependencyWarning) from .__version__ import __title__, __description__, __url__, __version__ from .__version__ import __build__, __author__, __author_email__, __license__
warnings.warn(warning, RequestsDependencyWarning) # Check imported dependencies for compatibility. try: check_compatibility(urllib3.__version__, chardet.__version__) except (AssertionError, ValueError): warnings.warn("urllib3 ({0}) or chardet ({1}) doesn't match a supported " "version!".format(urllib3.__version__, chardet.__version__), RequestsDependencyWarning) # Attempt to enable urllib3's SNI support, if possible from pip._internal.compat import WINDOWS if not WINDOWS: try: from pip._vendor.urllib3.contrib import pyopenssl pyopenssl.inject_into_urllib3() # Check cryptography version from cryptography import __version__ as cryptography_version _check_cryptography(cryptography_version) except ImportError: pass # urllib3's DependencyWarnings should be silenced. from pip._vendor.urllib3.exceptions import DependencyWarning warnings.simplefilter('ignore', DependencyWarning) from .__version__ import __title__, __description__, __url__, __version__ from .__version__ import __build__, __author__, __author_email__, __license__ from .__version__ import __copyright__, __cake__