added the oracle class

README.md

@@ -413,6 +413,29 @@ contract = pw.Contract('3N7XfieeJ8dHyMJfs7amukzxKB1PfMXzHzi', '<seed>')
 contract.faucet()
 ```
 
+#### Working with oracles
+Querrying oracles:
+```python
+import pywaves as pw
+
+oracle = pw.Oracle(oracleAddress = '3P4PCxsJqMzQBALo8zANHtBDZRRquobHQp7')
+# getting all data entries for an oracle
+print(oracle.getData())
+# getting data for a specific key of an oracle
+print(oracle.getData('order_total_EeH5DRjdMnoYDhNbtkLsRNZq95etJUqWtvMDBCXojBoy'))
+# getting all data entries of an oracle filtered by a regular expression
+print(oracle.getData(regex = '^order_total_.*$'))
+```
+Storing data in an oracle:
+```python
+import pywaves as pw
+
+pw.setNode('https://testnode1.wavesnodes.com', 'T')
+
+oracle = pw.Oracle(seed='<your seed here>')
+print(oracle.storeData('oracle_test', 'string', 'test entry from oracle class'))
+```
+
 #### Playing with Waves Matcher node (DEX):
 ```python	
 import pywaves as pw

__init__.py

@@ -32,6 +32,7 @@
 from .asset import *
 from .order import *
 from .contract import *
+from .oracle import *
 
 OFFLINE = False
 NODE = 'https://nodes.wavesnodes.com'

address.py

@@ -1081,7 +1081,6 @@ def issueSmartAsset(self, name, description, quantity, scriptSource, decimals=0,
                 "proofs": [ signature ],
                 "script": 'base64:' + script
             })
-            print(data)
             req = pywaves.wrapper('/transactions/broadcast', data)
             if pywaves.OFFLINE:
                 return req

contract.py

@@ -1,7 +1,7 @@
 import requests
 import pywaves as pw
 
-class Contract(object):
+class Oracle(object):
 
     def __init__(self, contractAddress, seed):
         self.contractAddress = contractAddress

oracle.py

@@ -0,0 +1,39 @@
+import requests
+import pywaves as pw
+
+class Oracle(object):
+
+    def __init__(self, oracleAddress = None, seed = None):
+        if seed != None:
+            self.oracleAddress = pw.Address(seed=seed)
+        else:
+            self.oracleAddress = oracleAddress
+
+    def getData(self, key = None, regex = None):
+        if key == None and regex == None:
+            result = self._getDataWithoutKey()
+        elif key != None:
+            result = self._getDataWithKey(key)
+        elif regex != None:
+            result = self._getDataWithRegex(regex)
+
+        return result
+
+    def _getDataWithRegex(self, regex):
+        print(pw.NODE + '/addresses/data/' + self.oracleAddress + '?matches=' + regex)
+        return requests.get(pw.NODE + '/addresses/data/' + self.oracleAddress + '?matches=' + regex).json()
+
+    def _getDataWithoutKey(self):
+        return requests.get(pw.NODE + '/addresses/data/' + self.oracleAddress).json()
+
+    def _getDataWithKey(self, key):
+        return requests.get(pw.NODE + '/addresses/data/' + self.oracleAddress + '/' + key).json()['value']
+
+    def storeData(self, key, type, dataEntry):
+        dataToStore = [{
+            'type': type,
+            'key': key,
+            'value': dataEntry
+        }]
+
+        return self.oracleAddress.dataTransaction(dataToStore)