proxy_username=None, proxy_password=None, proxy_auth_mode=None, allow_nonstandard_methods=None, validate_cert=None, ca_certs=None, allow_ipv6=None, client_key=None, client_cert=None, body_producer=None, expect_100_continue=False inherited by subsequent fetches because pycurl does not allow them to be cleanly reset. This applies to the ca_certs, client_key, client_cert, and network_interface arguments. If you use these options, you should validate the server’s certificate? Default is True. ca_certs (string [https://docs.python.org/3.5/library/string.html#module- string]) – filename of CA certificates in PEM format, or Non to use defaults

Optional[str] = None, al- low_nonstandard_methods: Optional[bool] = None, validate_cert: Optional[bool] = None, ca_certs: Optional[str] = None, allow_ipv6: Op- tional[bool] = None, client_key: Optional[str] = None Default is True. 84 Chapter 6. Documentation Tornado Documentation, Release 6.1 • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is True

proxy_username=None, proxy_password=None, proxy_auth_mode=None, allow_nonstandard_methods=None, val- idate_cert=None, ca_certs=None, al- low_ipv6=None, client_key=None, client_cert=None, body_producer=None, expect_100_continue=False (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (string) – filename of CA certificates in PEM format, or None to use de- faults. See note below when used with SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is true

proxy_username=None, proxy_password=None, proxy_auth_mode=None, allow_nonstandard_methods=None, val- idate_cert=None, ca_certs=None, al- low_ipv6=None, client_key=None, client_cert=None, body_producer=None, expect_100_continue=False (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is true

None, proxy_auth_mode: str = None, allow_nonstandard_methods: bool = None, validate_cert: bool = None, ca_certs: str = None, allow_ipv6: bool = None, client_key: str = None, client_cert: str = None, body_producer: (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is True

None, proxy_auth_mode: str = None, allow_nonstandard_methods: bool = None, validate_cert: bool = None, ca_certs: str = None, allow_ipv6: bool = None, client_key: str = None, client_cert: str = None, body_producer: inherited by subsequent fetches because pycurl does not allow them to be cleanly reset. This applies to the ca_certs, client_key, client_cert, and network_interface arguments. If you use these options, you should requests, validate the server’s certificate? Default is True. ca_certs (str [https://docs.python.org/3.6/library/stdtypes.html#str]) – filename of CA certificates in PEM format, or None to use defaults. See

Optional[str] = None, allow_nonstandard_methods: Optional[bool] = None, validate_cert: Optional[bool] = None, ca_certs: Optional[str] = None, allow_ipv6: Optional[bool] = None, client_key: Optional[str] = None, client_cert: inherited by subsequent fetches because pycurl does not allow them to be cleanly reset. This applies to the ca_certs, client_key, client_cert, and network_interface arguments. If you use these options, you should requests, validate the server’s certificate? Default is True. ca_certs (str [https://docs.python.org/3.6/library/stdtypes.html#str]) – filename of CA certificates in PEM format, or None to use defaults. See

Optional[str] = None, allow_nonstandard_methods: Optional[bool] = None, validate_cert: Optional[bool] = None, ca_certs: Optional[str] = None, allow_ipv6: Optional[bool] = None, client_key: Optional[str] = None, client_cert: (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is True

Optional[str] = None, allow_nonstandard_methods: Optional[bool] = None, validate_cert: Optional[bool] = None, ca_certs: Optional[str] = None, allow_ipv6: Optional[bool] = None, client_key: Optional[str] = None, client_cert: (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is True

Optional[str] = None, allow_nonstandard_methods: Optional[bool] = None, validate_cert: Optional[bool] = None, ca_certs: Optional[str] = None, allow_ipv6: Optional[bool] = None, client_key: Optional[str] = None, client_cert: (bool) – For HTTPS requests, validate the server’s certificate? Default is True. • ca_certs (str) – filename of CA certificates in PEM format, or None to use defaults. See note below when used with curl_httpclient SSLContext object for use in simple_httpclient (unsupported by curl_httpclient). Overrides validate_cert, ca_certs, client_key, and client_cert. • allow_ipv6 (bool) – Use IPv6 when available? Default is True