Python 3.7.2与Python 2.7.14和字符串 [英] Python 3.7.2 vs. Python 2.7.14 and strings

问题描述

我已经在Python 2.7安装和我自己的python 3.7和I'上用azure / azure-storage-python / azure-storage-common / azure / storage / common / _auth.py进行了一些测试。我想知道API服务器对request.header的
授权字段期望什么样的字符串？

I've been doing some testing with azure/azure-storage-python/azure-storage-common/azure/storage/common/_auth.py on both Python 2.7 installations and my own python 3.7 and I'm wondering what kind of string does the API server expect for the request.header's Authorization field?

有问题的代码：

    def _add_authorization_header(self, request, string_to_sign):
        try:
            signature = _sign_string(self.account_key, string_to_sign)
            auth_string = 'SharedKey ' + self.account_name + ':' + signature
            request.headers['Authorization'] = auth_string
        except Exception as ex:
            # Wrap any error that occurred as signing error
            # Doing so will clarify/locate the source of problem
            raise _wrap_exception(ex, AzureSigningError)

在Python2.7中，授权字段值是Unicode值：即u<< storage account>：< code>" ;;但是在Python 3.7中，我只得到一个"< storage account>：< code>" 

In Python2.7, the Authorization field value is a Unicode value : i.e. u"<storage account>:<code>"; but in Python 3.7, I just get a "<storage account>:<code>" 

在Python 3.x中，字符串已经是Unicode（虽然它没有显示我在"auth_string = ..."行之后进行打印时，即

In Python 3.x, strings are already Unicode (though it doesn't show that when I do a print after the "auth_string = ..." line, i.e.

 def _add_authorization_header(self, request, string_to_sign):
        try:
            signature = _sign_string(self.account_key, string_to_sign)
            auth_string = 'SharedKey ' + self.account_name + ':' + signature
            print(auth_string)
            request.headers['Authorization'] = auth_string
        except Exception as ex:
            # Wrap any error that occurred as signing error
            # Doing so will clarify/locate the source of problem
            raise _wrap_exception(ex, AzureSigningError)

在2.7中，我得到u'SharedKey< accountName>：< signature>';但在3.7中，我得到'SharedKey< accountName> ;：< signature>'。

In 2.7, I get u'SharedKey <accountName>:<signature>'; but in 3.7, I get 'SharedKey <accountName>:<signature>'.

前者有效。  Th e后来给了我：

The former works.  The later gives me:

Traceback (most recent call last):
  File "./test2.py", line 189, in <module>
    print(bcx.exists('vhds'))
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\blob\baseblobservice.py", line 1686, in exists
    _dont_fail_not_exist(ex)
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\common\_error.py", line 97, in _dont_fail_not_exist
    raise error
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\blob\baseblobservice.py", line 1682, in exists
    self._perform_request(request, expected_errors=expected_errors)
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\common\storageclient.py", line 430, in _perform_request
    raise ex
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\common\storageclient.py", line 358, in _perform_request
    raise ex
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\common\storageclient.py", line 344, in _perform_request
    HTTPError(response.status, response.message, response.headers, response.body))
  File "C:\Program Files\Git\python37\Lib\site-packages\azure\storage\common\_error.py", line 115, in _http_error_handler
    raise ex
azure.common.AzureHttpError: Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
<?xml version="1.0" encoding="utf-8"?>
<Error><Code>AuthenticationFailed</Code><Message>Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:[redacted]
Time:2019-03-06T14:57:37.5078291Z</Message></Error>

我错过了什么？

谢谢

Ed

推荐答案

这是一个非常基本的脚本：

Here's a very basic script:

acct_name = "<account name>"
acct_key = "<acct_key>"  # from storage account's Access Key list (Used key1)

blck = BlockBlobService(account_name=acct_name,
                        account_key=acct_key)

blck.exists("testing")    # it exists in the storage acct.

然后我得到同样的错误。

Then I get the same error.

相同的代码在Python 2.7works下运行。

The same code run under Python 2.7works.

这篇关于Python 3.7.2与Python 2.7.14和字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！