- region_name (str) -- The region to use in instantiating the client
- signature_version (str) -- The signature version when signing requests.
- user_agent (str) -- The value to use in the User-Agent header.
- user_agent_extra (str) -- The value to append to the current User-Agent
header value.
- connect_timeout (float or int) -- The time in seconds till a timeout exception is
thrown when attempting to make a connection. The default is 60
seconds.
- read_timeout (float or int) -- The time in seconds till a timeout exception is
thrown when attempting to read from a connection. The default is
60 seconds.
- parameter_validation (bool) -- Whether parameter validation should occur
when serializing requests. The default is True. You can disable
parameter validation for performance reasons. Otherwise, it's
recommended to leave parameter validation enabled.
- max_pool_connections (int) -- The maximum number of connections to
keep in a connection pool. If this value is not set, the default
value of 10 is used.
- proxies (dict) -- A dictionary of proxy servers to use by protocol or
endpoint, e.g.:
{'http': 'foo.bar:3128', 'http://hostname': 'foo.bar:4012'}.
The proxies are used on each request.
- proxies_config (dict) --
A dictionary of additional proxy configurations.
Valid keys are:
- 'proxy_ca_bundle' -- The path to a custom certificate bundle to use
when establishing SSL/TLS connections with proxy.
- 'proxy_client_cert' -- The path to a certificate for proxy
TLS client authentication.
When a str is provided it is treated as a path to a proxy client
certificate. When a two element tuple is provided, it will be
interpreted as the path to the client certificate, and the path
to the certificate key.
- 'proxy_use_forwarding_for_https' -- For HTTPS proxies,
forward your requests to HTTPS destinations with an absolute
URI. We strongly recommend you only use this option with
trusted or corporate proxies. Value must be boolean.
- s3 (dict) --
A dictionary of s3 specific configurations.
Valid keys are:
- 'use_accelerate_endpoint' -- Refers to whether to use the S3
Accelerate endpoint. The value must be a boolean. If True, the
client will use the S3 Accelerate endpoint. If the S3 Accelerate
endpoint is being used then the addressing style will always
be virtual.
- 'payload_signing_enabled' -- Refers to whether or not to SHA256
sign sigv4 payloads. By default, this is disabled for streaming
uploads (UploadPart and PutObject).
- 'addressing_style' -- Refers to the style in which to address
s3 endpoints. Values must be a string that equals:
- auto -- Addressing style is chosen for user. Depending
on the configuration of client, the endpoint may be addressed in
the virtual or the path style. Note that this is the default
behavior if no style is specified.
- virtual -- Addressing style is always virtual. The name of the
bucket must be DNS compatible or an exception will be thrown.
Endpoints will be addressed as such: mybucket.s3.amazonaws.com
- path -- Addressing style is always by path. Endpoints will be
addressed as such: s3.amazonaws.com/mybucket
- 'us_east_1_regional_endpoint' - Refers to what S3 endpoint to use
when the region is configured to be us-east-1. Values must be a
string that equals:
- regional -- Use the us-east-1.amazonaws.com endpoint if the
client is configured to use the us-east-1 region.
- legacy -- Use the s3.amazonaws.com endpoint if the client is
configured to use the us-east-1 region. This is the default if
the configuration option is not specified.
- retries (dict) --
A dictionary for retry specific configurations.
Valid keys are:
- 'total_max_attempts' -- An integer representing the maximum number of
total attempts that will be made on a single request. This includes
the initial request, so a value of 1 indicates that no requests
will be retried. If
total_max_attempts and max_attempts
are both provided, total_max_attempts takes precedence.
total_max_attempts is preferred over max_attempts because
it maps to the AWS_MAX_ATTEMPTS environment variable and
the max_attempts config file value.
- 'max_attempts' -- An integer representing the maximum number of
retry attempts that will be made on a single request. For
example, setting this value to 2 will result in the request
being retried at most two times after the initial request. Setting
this value to 0 will result in no retries ever being attempted on
the initial request. If not provided, the number of retries will
default to whatever is modeled, which is typically four retries.
- 'mode' -- A string representing the type of retry mode botocore
should use. Valid values are:
legacy - The pre-existing retry behavior.standard - The standardized set of retry rules. This
will also default to 3 max attempts unless overridden.adaptive - Retries with additional client side throttling.
- client_cert (str, (str, str)) --
The path to a certificate for TLS client authentication.
When a str is provided it is treated as a path to a client certificate
to be used when creating a TLS connection.
If a client key is to be provided alongside the client certificate the
client_cert should be set to a tuple of length two where the first
element is the path to the client certificate and the second element is
the path to the certificate key.
- inject_host_prefix (bool) --
Whether host prefix injection should occur.
Defaults to True.
Setting this to False disables the injection of operation parameters
into the prefix of the hostname. This is useful for clients providing
custom endpoints that should not have their host prefix modified.
- use_dualstack_endpoint (bool) --
Setting to True enables dualstack
endpoint resolution.
Defaults to None.
- use_fips_endpoint (bool) --
Setting to True enables fips
endpoint resolution.
Defaults to None.