Python: how to convert json unicode dictionary into python rdictionary

Use json.loads()

>>> a = """{
...     "event": {
...         "event_type": "signature_request_sent",
...         "event_time": "1407227830",
...         "event_hash": "567b6a342e29ceb8ad3a9641ccd27968f04f2c744c7dd3af8a1922f4eaa5d337",
...         "event_metadata": {
...             "related_signature_id": null,
...             "reported_for_account_id": null,
...             "reported_for_app_id": "290e6bb260fed5613b68066084fc77ff",
...             "event_message": null
...         }
        "original_title": "My First embedded signature request with a template",
...     },
...     "account_guid": null,
...     "client_id": "290e6bb260fed5613b68066084fc77ff",
...     "signature_request": {
...
...         "title": "My First embedded signature request with a template",
...         "original_title": "My First embedded signature request with a template",
...         "subject": "My First embedded signature request with a template",
...         "message": "Awesome, right?",
...         "test_mode": true,
...         "is_complete": false,
...         "has_error": false,
...         "custom_fields": [
...
...         ],
...         "response_data": [
...
...         ],
...         "signing_url": null,
...         "signing_redirect_url": null,
...         "final_copy_uri": "",
                "signature_id": "9c5d829af9e0566134dd28bd064a2fe8",
...         "signatures": [
...             {
...                 "signature_id": "9c5d829af9e0566134dd28bd064a2fe8",
...                 "has_pin": false,
...                 "signer_email_address": "[email protected]",
...                 "order": null,
...                 "status_code": "awaiting_signature",
...                 "signed_at": null,
...                 "last_viewed_at": null,
...                 "last_reminded_at": null
...             }
...         ],
...         "cc_email_addresses": [
...
...         ]
...     }
... }"""
>>> import json
>>> import pprint
>>> pprint.pprint(json.loads(a))
{u'account_guid': None,
 u'client_id': u'290e6bb260fed5613b68066084fc77ff',
 u'event': {u'event_hash': u'567b6a342e29ceb8ad3a9641ccd27968f04f2c744c7dd3af8a1922f4eaa5d337',
            u'event_metadata': {u'event_message': None,
                                u'related_signature_id': None,
                                u'reported_for_account_id': None,
                                u'reported_for_app_id': u'290e6bb260fed5613b68066084fc77ff'},
            u'event_time': u'1407227830',
            u'event_type': u'signature_request_sent'},
 u'signature_request': {u'cc_email_addresses': [],
                        u'custom_fields': [],
                        u'final_copy_uri': u'',
                        u'has_error': False,
                        u'is_complete': False,
                        u'message': u'Awesome, right?',
                        u'original_title': u'My First embedded signature request with a template',
                        u'response_data': [],
                        u'signatures': [{u'has_pin': False,
                                         u'last_reminded_at': None,
                                         u'last_viewed_at': None,
                                         u'order': None,
                                         u'signature_id': u'9c5d829af9e0566134dd28bd064a2fe8',
                                         u'signed_at': None,
                                         u'signer_email_address': u'[email protected]',
                                         u'status_code': u'awaiting_signature'}],
                        u'signing_redirect_url': None,
                        u'signing_url': None,
                        u'subject': u'My First embedded signature request with a template',
                        u'test_mode': True,
                        u'title': u'My First embedded signature request with a template'}}
>>>