diff --git a/.gitignore b/.gitignore
index d57811a..a04cdb9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -89,3 +89,5 @@ ENV/
 .ropeproject
 
 example/teste.py
+
+.idea/*
diff --git a/cieloApi3/objectJSON.py b/cieloApi3/objectJSON.py
index 49bcc04..dc657c5 100644
--- a/cieloApi3/objectJSON.py
+++ b/cieloApi3/objectJSON.py
@@ -1,5 +1,7 @@
 
 import json
+from future.utils import integer_types
+
 
 class ObjectJSON(object):
 
@@ -58,7 +60,8 @@ def remove_none_dict(obj):
     retorno = {}
     for chave in obj:
         valor = obj[chave]
-        if valor or isinstance(valor, (int, long, float, complex)):
+        types = integer_types + (float, complex)
+        if valor or isinstance(valor, types):
             retorno[chave] = remove_none(valor)
 
     return retorno
diff --git a/cieloApi3/request/base.py b/cieloApi3/request/base.py
index f94c0fa..3b8cd4d 100644
--- a/cieloApi3/request/base.py
+++ b/cieloApi3/request/base.py
@@ -1,5 +1,6 @@
 import uuid, json
 
+from future.utils import raise_with_traceback
 from requests import Request, Session
 
 class Base(object):
@@ -51,6 +52,6 @@ def send_request(self, method, uri, data=None, params=None):
 
             data_send = json.loads(body or 'null')
 
-            raise Exception, '\r\n%s\r\nMethod: %s\r\nUri: %s\r\nData: %s' % (''.join(errors), method, response.url, json.dumps(data_send, indent=2))
+            raise_with_traceback(Exception('\r\n%s\r\nMethod: %s\r\nUri: %s\r\nData: %s' % (''.join(errors), method, response.url, json.dumps(data_send, indent=2))))
 
         return answers
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..0442a2b
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+appdirs==1.4.3
+future==0.16.0
+packaging==16.8
+pyparsing==2.2.0
+requests==2.13.0
diff --git a/setup.py b/setup.py
index e7a6b47..759f6c6 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
     url='https://github.com/thiago-Malaca/API-3.0-Python',
     keywords='api3.0 cielo python sdk ecommerce',
     packages=find_packages(),
-    install_requires=['requests'],
+    install_requires=['requests', 'future'],
     license='MIT',
     classifiers=(
         # 'Development Status :: 5 - Production/Stable',
@@ -37,6 +37,8 @@
         # 'Programming Language :: Python :: 2.5',
         'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
     )
 )