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Add a header that will not be added to a redirected request.

Return whether the instance has the named header (checks both regular and unredirected).

Remove named header from the request instance (both from regular and unredirected headers).

New in version 3.4.

Return the URL given in the constructor.

Changed in version 3.4.

Returns Request.full_url

Prepare the request by connecting to a proxy server. The host and type will replace those of the instance, and the instance’s selector will be the original URL given in the constructor.

Return the value of the given header. If the header is not present, return the default value.

Return a list of tuples (header_name, header_value) of the Request headers.

Changed in version 3.4: The request methods add_data, has_data, get_data, get_type, get_host, get_selector, get_origin_req_host and is_unverifiable that were deprecated since 3.3 have been removed.

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instances have the following methods:

OpenerDirector objects open URLs in three stages:

The order in which these methods are called within each stage is determined by sorting the handler instances.

should be an instance of Dolce amp; Gabbana Cashmere Sweater Dress w/ Tags Clearance Pay With Paypal For Sale Largest Supplier Cheap Price Cheap Store RwSFelXovf
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Open the given (which can be a request object or a string), optionally passing the given . Arguments, return values and exceptions raised are the same as those of Meduse coat Black Rick Owens Discount Online Buy Cheap 2018 4m8RKtd
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method on the currently installed global ). The optional parameter specifies a timeout in seconds for blocking operations like the connection attempt (if not specified, the global default timeout setting will be used). The timeout feature actually works only for HTTP, HTTPS and FTP connections).

Handle an error of the given protocol. This will call the registered error handlers for the given protocol with the given arguments (which are protocol specific). The HTTP protocol is a special case which uses the HTTP response code to determine the specific error handler; refer to the methods of the handler classes.

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Every handler with a method named like has that method called to pre-process the request.

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Sign In to the Console
AWS Key Management Service
Developer Guide

Encryption context is a set of key-value pairs that you can pass to AWS KMS when you call the Buy Cheap Best Prices Foundrae MidRise Straight Leg Pants Outlet Best Prices Cheap Sale Hot Sale Free Shipping Pick A Best Clearance Shop JBVeURbEJ
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Encryption context can consist of any values that you want. However, because it is not encrypted and because it is logged if CloudTrail logging is turned on, your encryption context should not include sensitive information. We further recommend that your encryption context describe the data being encrypted or decrypted so that you can better understand the CloudTrail log entries produced by AWS KMS. For example, Amazon EBS uses the ID of the encrypted volume as the encryption context for server-side encryption. If you are encrypting a file, you might use part of the file path as encryption context.


Encryption Context in Grants and Key Policies

In addition to using encryption context to check ciphertext integrity and authenticity, AWS KMS supports authorization by using grants and key policies that incorporate encryption context. Authorization that uses encryption context more tightly controls access to encrypted resources. When you Free Shipping Shop Buy Cheap Cost Vince DoubleBreasted NotchedLapels Coat Sale Cheapest Free Shipping Supply Outlet 2018 New 02FouP
, for example, you can optionally specify a set of constraints that specify an encryption context that unambiguously identifies the resource to which long-term access is being granted. For example, consider encrypted volumes with Amazon EBS and Amazon EC2: When an EBS volume is attached to an EC2 instance, a grant is created that allows only that instance to decrypt only that volume. This is accomplished by encoding the volume ID as the encryption context in the Constraint that is passed to the Camille embroidered maxi dress Kalita For Sale Sale Online Finishline Sale Online m40V2x0
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RFC 2397

22.6.19. FTPHandler Objects Kristensen Du Nord Cotton LongSleeve Cardigan Buy Cheap Nicekicks UQJoI

Open the FTP file indicated by . The login is always done with empty username and password.

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Set timeout of connections to seconds.

Set maximum number of cached connections to .

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Raise a exception.

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For 200 error codes, the response object is returned immediately.

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Process HTTPS error responses.

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In addition to the examples below, more examples are given in Patagonia Mock Neck Zip Jacket Recommend v1NhnEL

This example gets the main page and displays the first 300 bytes of it.


Note that urlopen returns a bytes object. This is because there is no way for urlopen to automatically determine the encoding of the byte stream it receives from the HTTP server. In general, a program will decode the returned bytes object to string once it determines or guesses the appropriate encoding.

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As the website uses utf-8 encoding as specified in its meta tag, we will use the same for decoding the bytes object.


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In the following example, we are sending a data-stream to the stdin of a CGI and reading the data it returns to us. Note that this example will only work when the Python installation supports SSL.


The code for the sample CGI used in the above example is:

Here is an example of doing a PUT request using Request :



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