diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 60e8d37..808e269 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,5 +1,11 @@
 Changelog
 =========
+* 0.9.4 (August 29, 2023)
+    * Removed python 2 compatible decorators
+    * Removed python 2 dependencies
+    * Fixed issue with MarkupInfo field on AccountBasedExpenseLineDetail
+    * Removed test files from package
+
 * 0.9.3 (March 7, 2023)
     * Added support for Recurring Transaction
     * Added support for optional query params
diff --git a/MANIFEST.in b/MANIFEST.in
index d49e8c4..9a8b7c4 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,3 @@
 include README.md
 include LICENSE
-recursive-include tests *
\ No newline at end of file
+recursive-exclude tests *
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 420f0b8..c59408c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,3 @@
-
 publish: clean
 	python setup.py sdist
 	twine upload dist/*
diff --git a/Pipfile b/Pipfile
index 0e568b4..a3ddd03 100644
--- a/Pipfile
+++ b/Pipfile
@@ -10,9 +10,8 @@ urllib3 = ">=1.26.5"
 bleach = ">=3.3.0"
 intuit-oauth = "==1.2.4"
 rauth = ">=0.7.3"
-requests = ">=2.26.0"
-simplejson = ">=3.17.0"
-six = ">=1.14.0"
+requests = ">=2.31.0"
+simplejson = ">=3.19.1"
 nose = "*"
 coverage = "*"
 twine = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
index 31478d1..41ccc28 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "0dcea13aefe56fd4407fd1616f124a4527372bbc6a4324e6d75ec31027624edd"
+            "sha256": "f8797f56e2b6c880a4ad872b0cdc9bf0b6388112b1e3b35ee6dc644e406507b0"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -22,168 +22,171 @@
                 "sha256:33c16e3353dbd13028ab4799a0f89a83f113405c766e9c122df8a06f5b85b3f4"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.7'",
             "version": "==6.0.0"
         },
         "certifi": {
             "hashes": [
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-                "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"
+                "sha256:539cc1d13202e33ca466e88b2807e29f4c13049d6d87031a3c110744495cb082",
+                "sha256:92d6037539857d8206b8f6ae472e8b77db8058fec5937a1ef3f54304089edbb9"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==2022.12.7"
+            "version": "==2023.7.22"
         },
         "charset-normalizer": {
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-            "version": "==7.2.1"
+            "markers": "python_version >= '3.8'",
+            "version": "==7.3.0"
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         "docutils": {
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             "markers": "python_version >= '3.7'",
-            "version": "==0.19"
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+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==0.18.0"
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@@ -197,7 +200,7 @@
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-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==0.18.3"
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@@ -210,19 +213,19 @@
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+            "markers": "python_version >= '3.8'",
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@@ -234,27 +237,27 @@
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-            "markers": "python_version >= '3.7'",
-            "version": "==3.2.3"
+            "markers": "python_version >= '3.8'",
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-            "markers": "python_version >= '3.7'",
-            "version": "==23.13.1"
+            "markers": "python_version >= '3.8'",
+            "version": "==24.2.0"
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-                "sha256:7c9a5e412688bc771c67432cbfebcdd686c93ce6484913dccf06cb5a0bea35a1"
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-            "markers": "python_version >= '3.7'",
-            "version": "==2.2.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==3.0.0"
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         "mdurl": {
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@@ -266,11 +269,11 @@
         },
         "more-itertools": {
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-            "markers": "python_version >= '3.7'",
-            "version": "==9.1.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==10.1.0"
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         "nose": {
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@@ -299,29 +302,19 @@
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         "pyasn1": {
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+                "sha256:926957b278de22797bfc2f004b15297013843b595b3cd7ecd9e37ccb5fad0b72",
+                "sha256:93f5ac30607157a0b2579af59a065bcfaa7fadeb4875bf927a8f8b6739c8d910",
+                "sha256:96ade243fb6f3b57e7bd3b71e90c190cd0f93ec5dce6bf38734a73a2e5fa274f",
+                "sha256:9f14ecca970d825df0d29d5c6736ff27999ee7bdf5510e807f7ad8845f7760ce",
+                "sha256:a755f7bfc8adcb94887710dc70cc12a69a454120c6adcc6f251c3f7b46ee6aac",
+                "sha256:a79b439a6a77649bb8e2f2644e6c9cc0adb720fc55bed63546edea86e1d5c6c8",
+                "sha256:aa9d614a612ad02492f704fbac636f666fa89295a5d22b4facf2d665fc3b5ea9",
+                "sha256:ad071cd84a636195f35fa71de2186d717db775f94f985232775794d09f8d9061",
+                "sha256:b0e9a5e66969f7a47dc500e3dba8edc3b45d4eb31efb855c8647700a3493dd8a",
+                "sha256:b438e5eaa474365f4faaeeef1ec3e8d5b4e7030706e3e3d6b5bee6049732e0e6",
+                "sha256:b46aaf0332a8a9c965310058cf3487d705bf672641d2c43a835625b326689cf4",
+                "sha256:c39fa911e4302eb79c804b221ddec775c3da08833c0a9120041dd322789824de",
+                "sha256:ca56a6c8c8236d6fe19abb67ef08d76f3c3f46712c49a3b6a5352b6e43e8855f",
+                "sha256:cb502cde018e93e75dc8fc7bb2d93477ce4f3ac10369f48866c61b5e031db1fd",
+                "sha256:cd4d50a27b065447c9c399f0bf0a993bd0e6308db8bbbfbc3ea03b41c145775a",
+                "sha256:d125e754d26c0298715bdc3f8a03a0658ecbe72330be247f4b328d229d8cf67f",
+                "sha256:d300773b93eed82f6da138fd1d081dc96fbe53d96000a85e41460fe07c8d8b33",
+                "sha256:d396b610e77b0c438846607cd56418bfc194973b9886550a98fd6724e8c6cfec",
+                "sha256:d61482b5d18181e6bb4810b4a6a24c63a490c3a20e9fbd7876639653e2b30a1a",
+                "sha256:d9f2c27f18a0b94107d57294aab3d06d6046ea843ed4a45cae8bd45756749f3a",
+                "sha256:dc2b3f06430cbd4fac0dae5b2974d2bf14f71b415fb6de017f498950da8159b1",
+                "sha256:dc935d8322ba9bc7b84f99f40f111809b0473df167bf5b93b89fb719d2c4892b",
+                "sha256:e333c5b62e93949f5ac27e6758ba53ef6ee4f93e36cc977fe2e3df85c02f6dc4",
+                "sha256:e765b1f47293dedf77946f0427e03ee45def2862edacd8868c6cf9ab97c8afbd",
+                "sha256:ed18728b90758d171f0c66c475c24a443ede815cf3f1a91e907b0db0ebc6e508",
+                "sha256:eff87c68058374e45225089e4538c26329a13499bc0104b52b77f8428eed36b2",
+                "sha256:f05d05d99fce5537d8f7a0af6417a9afa9af3a6c4bb1ba7359c53b6257625fcb",
+                "sha256:f253edf694ce836631b350d758d00a8c4011243d58318fbfbe0dd54a6a839ab4",
+                "sha256:f41915a4e1f059dfad614b187bc06021fefb5fc5255bfe63abf8247d2f7a646a",
+                "sha256:f96def94576f857abf58e031ce881b5a3fc25cbec64b2bc4824824a8a4367af9"
             ],
             "index": "pypi",
-            "version": "==3.18.3"
+            "markers": "python_version >= '2.5' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==3.19.1"
         },
         "six": {
             "hashes": [
                 "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
                 "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "index": "pypi",
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==1.16.0"
         },
         "twine": {
@@ -487,23 +494,25 @@
                 "sha256:9e102ef5fdd5a20661eb88fad46338806c3bd32cf1db729603fe3697b1bc83c8"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.7'",
             "version": "==4.0.2"
         },
         "typing-extensions": {
             "hashes": [
-                "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb",
-                "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"
+                "sha256:440d5dd3af93b060174bf433bccd69b0babc3b15b1a8dca43789fd7f61514b36",
+                "sha256:b75ddc264f0ba5615db7ba217daeb99701ad295353c45f9e95963337ceeeffb2"
             ],
             "markers": "python_version < '3.9'",
-            "version": "==4.5.0"
+            "version": "==4.7.1"
         },
         "urllib3": {
             "hashes": [
-                "sha256:076907bf8fd355cde77728471316625a4d2f7e713c125f51953bb5b3eecf4f72",
-                "sha256:75edcdc2f7d85b137124a6c3c9fc3933cdeaa12ecb9a6a959f22797a0feca7e1"
+                "sha256:8d22f86aae8ef5e410d4f539fde9ce6b2113a001bb4d189e0aed70642d602b11",
+                "sha256:de7df1803967d2c2a98e4b11bb7d6bd9210474c46e8a0401514e3a42a75ebde4"
             ],
             "index": "pypi",
-            "version": "==1.26.14"
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.4"
         },
         "webencodings": {
             "hashes": [
@@ -514,11 +523,11 @@
         },
         "zipp": {
             "hashes": [
-                "sha256:112929ad649da941c23de50f356a2b5570c954b65150642bccdd66bf194d224b",
-                "sha256:48904fc76a60e542af151aded95726c1a5c34ed43ab4134b597665c86d7ad556"
+                "sha256:679e51dd4403591b2d6838a48de3d283f3d188412a9782faadf845f298736ba0",
+                "sha256:ebc15946aa78bd63458992fc81ec3b6f7b1e92d51c35e6de1c3804e73b799147"
             ],
-            "markers": "python_version >= '3.7'",
-            "version": "==3.15.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==3.16.2"
         }
     },
     "develop": {}
diff --git a/README.md b/README.md
index 261c7fc..ea09ef7 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ python-quickbooks
 [![Python package](https://github.com/ej2/python-quickbooks/actions/workflows/python-package.yml/badge.svg)](https://github.com/ej2/python-quickbooks/actions/workflows/python-package.yml)
 [![Coverage Status](https://coveralls.io/repos/github/ej2/python-quickbooks/badge.svg?branch=master)](https://coveralls.io/github/ej2/python-quickbooks?branch=master)
 [![](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/ej2/python-quickbooks/blob/master/LICENSE)
+[![PyPI](https://img.shields.io/pypi/v/python-quickbooks)](https://pypi.org/project/python-quickbooks/)
  
 A Python 3 library for accessing the Quickbooks API. Complete rework of
 [quickbooks-python](https://github.com/troolee/quickbooks-python).
@@ -14,6 +15,13 @@ You can find additional examples of usage in [Integration tests folder](https://
 
 For information about contributing, see the [Contributing Page](https://github.com/ej2/python-quickbooks/blob/master/contributing.md).
 
+Installation
+------------
+
+```bash
+pip install python-quickbooks
+```
+
 QuickBooks OAuth
 ------------------------------------------------
 
diff --git a/dev_requirements.txt b/dev_requirements.txt
index 2becb71..74c3c14 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,4 +1,4 @@
-coverage==6.4.2
-ipdb==0.13.9
-mock==2.0.0
+coverage==7.3.0
+ipdb==0.13.13
+mock==5.1.0
 nose==1.3.7
\ No newline at end of file
diff --git a/quickbooks/mixins.py b/quickbooks/mixins.py
index c22ef30..9b51a42 100644
--- a/quickbooks/mixins.py
+++ b/quickbooks/mixins.py
@@ -1,9 +1,8 @@
-from future.moves.urllib.parse import quote
+from urllib.parse import quote
 
 try: import simplejson as json
 except ImportError: import json
 
-import six
 from .utils import build_where_clause, build_choose_clause
 from .client import QuickBooks
 from .exceptions import QuickbooksException
@@ -70,14 +69,9 @@ def to_dict(obj, classkey=None):
     elif hasattr(obj, "__iter__") and not isinstance(obj, str):
         return [to_dict(v, classkey) for v in obj]
     elif hasattr(obj, "__dict__"):
-        if six.PY2:
-            data = dict([(key, to_dict(value, classkey))
-                        for key, value in obj.__dict__.iteritems()
-                        if not callable(value) and not key.startswith('_')])
-        else:
-            data = dict([(key, to_dict(value, classkey))
-                        for key, value in obj.__dict__.items()
-                        if not callable(value) and not key.startswith('_')])
+        data = dict([(key, to_dict(value, classkey))
+                    for key, value in obj.__dict__.items()
+                    if not callable(value) and not key.startswith('_')])
 
         if classkey is not None and hasattr(obj, "__class__"):
             data[classkey] = obj.__class__.__name__
diff --git a/quickbooks/objects/account.py b/quickbooks/objects/account.py
index 5f30eb2..1c7f7e9 100644
--- a/quickbooks/objects/account.py
+++ b/quickbooks/objects/account.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity
 
 
-@python_2_unicode_compatible
 class Account(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: Account is a component of a Chart Of Accounts, and is part of a Ledger. Used to record a total
diff --git a/quickbooks/objects/attachable.py b/quickbooks/objects/attachable.py
index a45625c..e7d23d0 100644
--- a/quickbooks/objects/attachable.py
+++ b/quickbooks/objects/attachable.py
@@ -1,10 +1,8 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, AttachableRef
 from ..client import QuickBooks
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class Attachable(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: This page covers the Attachable, Upload, and Download resources used for attachment management. Attachments are supplemental information linked to a transaction or Item object. They can be files, notes, or a combination of both.
diff --git a/quickbooks/objects/base.py b/quickbooks/objects/base.py
index 11c6dd5..c6b1afd 100644
--- a/quickbooks/objects/base.py
+++ b/quickbooks/objects/base.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from ..mixins import ToDictMixin, ToJsonMixin, FromJsonMixin, ListMixin, ReadMixin, UpdateMixin
 
 
@@ -24,7 +23,6 @@ class QuickbooksReadOnlyObject(QuickbooksBaseObject, ReadMixin, ListMixin):
     pass
 
 
-@python_2_unicode_compatible
 class MetaData(FromJsonMixin):
     def __init__(self):
         self.CreateTime = ""
@@ -44,7 +42,6 @@ def to_linked_txn(self):
         return linked_txn
 
 
-@python_2_unicode_compatible
 class Address(QuickbooksBaseObject):
     def __init__(self):
         self.Id = None
@@ -65,7 +62,6 @@ def __str__(self):
         return "{0} {1}, {2} {3}".format(self.Line1, self.City, self.CountrySubDivisionCode, self.PostalCode)
 
 
-@python_2_unicode_compatible
 class PhoneNumber(ToJsonMixin, FromJsonMixin, ToDictMixin):
     def __init__(self):
         self.FreeFormNumber = ""
@@ -74,7 +70,6 @@ def __str__(self):
         return self.FreeFormNumber
 
 
-@python_2_unicode_compatible
 class EmailAddress(QuickbooksBaseObject):
     def __init__(self):
         self.Address = ""
@@ -83,7 +78,6 @@ def __str__(self):
         return self.Address
 
 
-@python_2_unicode_compatible
 class WebAddress(QuickbooksBaseObject):
     def __init__(self):
         self.URI = ""
@@ -92,7 +86,6 @@ def __str__(self):
         return self.URI
 
 
-@python_2_unicode_compatible
 class Ref(QuickbooksBaseObject):
     def __init__(self):
         self.value = ""
@@ -103,7 +96,6 @@ def __str__(self):
         return self.name
 
 
-@python_2_unicode_compatible
 class CustomField(QuickbooksBaseObject):
     def __init__(self):
         self.DefinitionId = ""
@@ -115,7 +107,6 @@ def __str__(self):
         return self.Name
 
 
-@python_2_unicode_compatible
 class LinkedTxn(QuickbooksBaseObject):
     qbo_object_name = "LinkedTxn"
 
@@ -129,7 +120,6 @@ def __str__(self):
         return str(self.TxnId)
 
 
-@python_2_unicode_compatible
 class CustomerMemo(QuickbooksBaseObject):
     def __init__(self):
         super(CustomerMemo, self).__init__()
diff --git a/quickbooks/objects/batchrequest.py b/quickbooks/objects/batchrequest.py
index 520419b..2f7aecb 100644
--- a/quickbooks/objects/batchrequest.py
+++ b/quickbooks/objects/batchrequest.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from ..mixins import ToJsonMixin, FromJsonMixin
 
 
@@ -8,7 +7,6 @@ class BatchOperation(object):
     DELETE = "delete"
 
 
-@python_2_unicode_compatible
 class FaultError(FromJsonMixin):
     qbo_object_name = "Error"
 
diff --git a/quickbooks/objects/bill.py b/quickbooks/objects/bill.py
index 013ac92..834da6a 100644
--- a/quickbooks/objects/bill.py
+++ b/quickbooks/objects/bill.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.objects.detailline import DetailLine, ItemBasedExpenseLine, AccountBasedExpenseLine, \
     TDSLine
 from .base import Ref, LinkedTxn, QuickbooksManagedObject, QuickbooksTransactionEntity, \
@@ -8,7 +6,6 @@
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class Bill(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A Bill entity is an AP transaction representing a request-for-payment from a third party for
@@ -79,4 +76,3 @@ def to_ref(self):
         ref.value = self.Id
 
         return ref
-
diff --git a/quickbooks/objects/billpayment.py b/quickbooks/objects/billpayment.py
index 6fd1e46..3f175d9 100644
--- a/quickbooks/objects/billpayment.py
+++ b/quickbooks/objects/billpayment.py
@@ -1,10 +1,8 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, LinkedTxn, QuickbooksManagedObject, LinkedTxnMixin, \
     QuickbooksTransactionEntity
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class CheckPayment(QuickbooksBaseObject):
     class_dict = {
         "BankAccountRef": Ref
@@ -33,7 +31,6 @@ def __init__(self):
         self.CCAccountRef = None
 
 
-@python_2_unicode_compatible
 class BillPaymentLine(QuickbooksBaseObject):
     list_dict = {
         "LinkedTxn": LinkedTxn
@@ -50,7 +47,6 @@ def __str__(self):
         return str(self.Amount)
 
 
-@python_2_unicode_compatible
 class BillPayment(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A BillPayment entity represents the financial transaction of payment
diff --git a/quickbooks/objects/budget.py b/quickbooks/objects/budget.py
index 17cc6a5..442bd84 100644
--- a/quickbooks/objects/budget.py
+++ b/quickbooks/objects/budget.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, QuickbooksTransactionEntity, \
     QuickbooksReadOnlyObject
 
 
-@python_2_unicode_compatible
 class BudgetDetail(QuickbooksBaseObject):
     class_dict = {
         "AccountRef": Ref,
@@ -26,7 +24,6 @@ def __str__(self):
         return str(self.Amount)
 
 
-@python_2_unicode_compatible
 class Budget(QuickbooksReadOnlyObject, QuickbooksTransactionEntity):
     """
     QBO definition: The Budget endpoint allows you to retrieve the current state of budgets already set up in the user's
@@ -56,4 +53,3 @@ def __init__(self):
 
     def __str__(self):
         return self.Name
-
diff --git a/quickbooks/objects/changedatacapture.py b/quickbooks/objects/changedatacapture.py
index ee628da..d11a527 100644
--- a/quickbooks/objects/changedatacapture.py
+++ b/quickbooks/objects/changedatacapture.py
@@ -2,14 +2,14 @@
 
 
 class CDCResponse(FromJsonMixin):
-	qbo_object_name = "CDCResponse"
+    qbo_object_name = "CDCResponse"
 
-	def __init__(self):
-		super(CDCResponse, self).__init__()
+    def __init__(self):
+        super(CDCResponse, self).__init__()
 
 
 class QueryResponse(FromJsonMixin, ObjectListMixin):
-	qbo_object_name = "QueryResponse"
+    qbo_object_name = "QueryResponse"
 
-	def __init__(self):
-		super(QueryResponse, self).__init__()
+    def __init__(self):
+        super(QueryResponse, self).__init__()
diff --git a/quickbooks/objects/company_info.py b/quickbooks/objects/company_info.py
index 2319431..87ddb60 100644
--- a/quickbooks/objects/company_info.py
+++ b/quickbooks/objects/company_info.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Address, PhoneNumber, EmailAddress, WebAddress, \
     QuickbooksManagedObject, Ref, MetaData
 
 
-@python_2_unicode_compatible
 class CompanyInfo(QuickbooksManagedObject):
     """
     QBO definition: The CompanyInfo entity contains basic company information.
diff --git a/quickbooks/objects/companycurrency.py b/quickbooks/objects/companycurrency.py
index 90d0ff6..b4f788e 100644
--- a/quickbooks/objects/companycurrency.py
+++ b/quickbooks/objects/companycurrency.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksManagedObject, QuickbooksTransactionEntity, Ref, CustomField, MetaData
 
 
-@python_2_unicode_compatible
 class CompanyCurrency(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: Applicable only for those companies that enable multicurrency, a companycurrency object
diff --git a/quickbooks/objects/creditcardpayment_entity.py b/quickbooks/objects/creditcardpayment_entity.py
index 7d62ded..9b4b287 100644
--- a/quickbooks/objects/creditcardpayment_entity.py
+++ b/quickbooks/objects/creditcardpayment_entity.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin, MetaData
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class CreditCardPayment(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A Represents a financial transaction to record a Credit Card balance payment
diff --git a/quickbooks/objects/creditmemo.py b/quickbooks/objects/creditmemo.py
index a92e7f0..9cfcc87 100644
--- a/quickbooks/objects/creditmemo.py
+++ b/quickbooks/objects/creditmemo.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.objects.detailline import SalesItemLine, SubtotalLine, DiscountLine, DescriptionOnlyLine, DetailLine
 from .base import Address, EmailAddress, Ref, CustomField, CustomerMemo, QuickbooksManagedObject, \
     LinkedTxnMixin, QuickbooksTransactionEntity
@@ -7,7 +5,6 @@
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class CreditMemo(DeleteMixin, QuickbooksTransactionEntity, QuickbooksManagedObject, LinkedTxnMixin):
     """
     QBO definition: The CreditMemo is a financial transaction representing a refund or credit of payment or part
diff --git a/quickbooks/objects/customer.py b/quickbooks/objects/customer.py
index f2e30d1..2bf0f19 100644
--- a/quickbooks/objects/customer.py
+++ b/quickbooks/objects/customer.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Address, PhoneNumber, EmailAddress, WebAddress, Ref, QuickbooksManagedObject, \
     QuickbooksTransactionEntity
 
 
-@python_2_unicode_compatible
 class Customer(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: A customer is a consumer of the service or product that your business offers. The Customer object
diff --git a/quickbooks/objects/customertype.py b/quickbooks/objects/customertype.py
index f45bcc2..af41b3a 100644
--- a/quickbooks/objects/customertype.py
+++ b/quickbooks/objects/customertype.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Address, PhoneNumber, EmailAddress, WebAddress, MetaData, QuickbooksReadOnlyObject, \
     QuickbooksTransactionEntity
 
 
-@python_2_unicode_compatible
 class CustomerType(QuickbooksReadOnlyObject, QuickbooksTransactionEntity):
     """
     QBO definition: Customer types allow categorizing customers in ways that are meaningful to the business.
diff --git a/quickbooks/objects/department.py b/quickbooks/objects/department.py
index 60465f9..f81ce49 100644
--- a/quickbooks/objects/department.py
+++ b/quickbooks/objects/department.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksManagedObject, QuickbooksTransactionEntity, Ref
 
 
-@python_2_unicode_compatible
 class Department(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: The Department entity provides a way to track different segments of the business, divisions, or
diff --git a/quickbooks/objects/deposit.py b/quickbooks/objects/deposit.py
index 1b00a03..a8b0c54 100644
--- a/quickbooks/objects/deposit.py
+++ b/quickbooks/objects/deposit.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, LinkedTxn, QuickbooksManagedObject, LinkedTxnMixin, \
     QuickbooksTransactionEntity, CustomField, AttachableRef
 from ..mixins import DeleteMixin
@@ -35,7 +34,6 @@ def __init__(self):
         self.PaymentMethodRef = None
 
 
-@python_2_unicode_compatible
 class DepositLine(QuickbooksBaseObject):
     class_dict = {
         "DepositToAccountRef": Ref,
@@ -63,7 +61,6 @@ def __str__(self):
         return str(self.Amount)
 
 
-@python_2_unicode_compatible
 class Deposit(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A deposit object is a transaction that records one or more deposits of the following types:
diff --git a/quickbooks/objects/detailline.py b/quickbooks/objects/detailline.py
index c12b31e..eb6465c 100644
--- a/quickbooks/objects/detailline.py
+++ b/quickbooks/objects/detailline.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, CustomField, LinkedTxn, MarkupInfo
 
 
-@python_2_unicode_compatible
 class DetailLine(QuickbooksBaseObject):
     list_dict = {
         "LinkedTxn": LinkedTxn,
@@ -100,7 +98,6 @@ def __init__(self):
         self.TaxCodeRef = None
 
 
-@python_2_unicode_compatible
 class SalesItemLineDetail(QuickbooksBaseObject):
     class_dict = {
         "ItemRef": Ref,
@@ -164,7 +161,6 @@ def __init__(self):
         self.DescriptionLineDetail = None
 
 
-@python_2_unicode_compatible
 class AccountBasedExpenseLineDetail(QuickbooksBaseObject):
     class_dict = {
         "CustomerRef": Ref,
@@ -184,6 +180,7 @@ def __init__(self):
         self.AccountRef = None
         self.TaxCodeRef = None
         self.ClassRef = None
+        self.MarkupInfo = None
 
     def __str__(self):
         return self.BillableStatus
@@ -201,7 +198,6 @@ def __init__(self):
         self.AccountBasedExpenseLineDetail = None
 
 
-@python_2_unicode_compatible
 class TDSLineDetail(QuickbooksBaseObject):
     def __init__(self):
         super(TDSLineDetail, self).__init__()
diff --git a/quickbooks/objects/employee.py b/quickbooks/objects/employee.py
index d9f49ad..8e1636f 100644
--- a/quickbooks/objects/employee.py
+++ b/quickbooks/objects/employee.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import Address, PhoneNumber, QuickbooksManagedObject, QuickbooksTransactionEntity, Ref
 
 
-@python_2_unicode_compatible
 class Employee(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: Employee represents the people who are working for the company.
diff --git a/quickbooks/objects/estimate.py b/quickbooks/objects/estimate.py
index 32bafa9..6a9d596 100644
--- a/quickbooks/objects/estimate.py
+++ b/quickbooks/objects/estimate.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import CustomField, Ref, CustomerMemo, Address, EmailAddress, QuickbooksManagedObject, \
     LinkedTxnMixin, QuickbooksTransactionEntity, LinkedTxn
 from .tax import TxnTaxDetail
@@ -6,7 +5,6 @@
 from ..mixins import QuickbooksPdfDownloadable, DeleteMixin, SendMixin
 
 
-@python_2_unicode_compatible
 class Estimate(DeleteMixin,
                QuickbooksPdfDownloadable,
                QuickbooksManagedObject,
diff --git a/quickbooks/objects/exchangerate.py b/quickbooks/objects/exchangerate.py
index 15d6172..4168c9b 100644
--- a/quickbooks/objects/exchangerate.py
+++ b/quickbooks/objects/exchangerate.py
@@ -1,16 +1,12 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.mixins import ListMixin, UpdateNoIdMixin, FromJsonMixin
 from .base import CustomField, QuickbooksBaseObject
 
 
-@python_2_unicode_compatible
 class ExchangeRateMetaData(FromJsonMixin):
     def __init__(self):
         self.LastUpdatedTime = ""
 
 
-@python_2_unicode_compatible
 class ExchangeRate(QuickbooksBaseObject, ListMixin, UpdateNoIdMixin):
     """
     QBO definition: Applicable only for those companies that enable multicurrency,
diff --git a/quickbooks/objects/invoice.py b/quickbooks/objects/invoice.py
index 166ba49..c3b923f 100644
--- a/quickbooks/objects/invoice.py
+++ b/quickbooks/objects/invoice.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, CustomField, Address, EmailAddress, CustomerMemo, QuickbooksManagedObject, \
     QuickbooksTransactionEntity, LinkedTxn, LinkedTxnMixin, MetaData
 from .tax import TxnTaxDetail
@@ -13,7 +12,6 @@ def __init__(self):
         self.DeliveryTime = ""
 
 
-@python_2_unicode_compatible
 class Invoice(DeleteMixin, QuickbooksPdfDownloadable, QuickbooksManagedObject, QuickbooksTransactionEntity,
               LinkedTxnMixin, SendMixin, VoidMixin):
     """
diff --git a/quickbooks/objects/item.py b/quickbooks/objects/item.py
index 123b848..c8e6ad1 100644
--- a/quickbooks/objects/item.py
+++ b/quickbooks/objects/item.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity
 
 
-@python_2_unicode_compatible
 class Item(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: An item is a thing that your company buys, sells, or re-sells,
diff --git a/quickbooks/objects/journalentry.py b/quickbooks/objects/journalentry.py
index 0380bfe..d1c5e9f 100644
--- a/quickbooks/objects/journalentry.py
+++ b/quickbooks/objects/journalentry.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, \
     LinkedTxnMixin
 from .tax import TxnTaxDetail
@@ -51,7 +50,6 @@ def __init__(self):
         self.JournalEntryLineDetail = None
 
 
-@python_2_unicode_compatible
 class JournalEntry(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: Journal Entry is a transaction in which:
@@ -83,7 +81,7 @@ def __init__(self):
         super(JournalEntry, self).__init__()
         self.Adjustment = False
         self.TxnDate = ""
-        #self.TxnSource = ""
+        # self.TxnSource = ""
         self.DocNumber = ""
         self.PrivateNote = ""
         self.TotalAmt = 0
diff --git a/quickbooks/objects/payment.py b/quickbooks/objects/payment.py
index f82ce74..07e1522 100644
--- a/quickbooks/objects/payment.py
+++ b/quickbooks/objects/payment.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, LinkedTxn, \
     QuickbooksManagedObject, QuickbooksTransactionEntity, \
     LinkedTxnMixin, MetaData
@@ -8,7 +7,6 @@
 import json
 
 
-@python_2_unicode_compatible
 class PaymentLine(QuickbooksBaseObject):
     list_dict = {
         "LinkedTxn": LinkedTxn,
@@ -23,7 +21,6 @@ def __str__(self):
         return str(self.Amount)
 
 
-@python_2_unicode_compatible
 class Payment(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A Payment entity records a payment in QuickBooks. The payment can be
diff --git a/quickbooks/objects/paymentmethod.py b/quickbooks/objects/paymentmethod.py
index dd4da4c..e33089c 100644
--- a/quickbooks/objects/paymentmethod.py
+++ b/quickbooks/objects/paymentmethod.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksManagedObject, QuickbooksTransactionEntity, Ref
 
 
-@python_2_unicode_compatible
 class PaymentMethod(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: The PaymentMethod entity provides the method of payment for received goods. Delete is achieved by setting the
@@ -31,4 +29,3 @@ def to_ref(self):
         ref.value = self.Id
 
         return ref
-
diff --git a/quickbooks/objects/preferences.py b/quickbooks/objects/preferences.py
index d7e7e5b..49aa23c 100644
--- a/quickbooks/objects/preferences.py
+++ b/quickbooks/objects/preferences.py
@@ -1,10 +1,7 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.mixins import PrefMixin, UpdateNoIdMixin
 from .base import QuickbooksBaseObject, QuickbooksTransactionEntity, Ref, EmailAddress
 
 
-@python_2_unicode_compatible
 class PreferencesCustomField(QuickbooksBaseObject):
     def __init__(self):
         self.Type = ""
@@ -202,7 +199,6 @@ def __init__(self):
         self.MultiCurrencyEnabled = False
 
 
-@python_2_unicode_compatible
 class Preferences(PrefMixin, UpdateNoIdMixin, QuickbooksTransactionEntity):
     """
     QBO definition: The Preferences resource represents a set of company preferences that
diff --git a/quickbooks/objects/purchase.py b/quickbooks/objects/purchase.py
index 49264e2..62b2c72 100644
--- a/quickbooks/objects/purchase.py
+++ b/quickbooks/objects/purchase.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.objects.detailline import DetailLine, AccountBasedExpenseLine, ItemBasedExpenseLine, \
     TDSLine
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin, \
@@ -8,7 +6,6 @@
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class Purchase(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: This entity represents expenses, such as a purchase made from a vendor.
diff --git a/quickbooks/objects/purchaseorder.py b/quickbooks/objects/purchaseorder.py
index 6c6ac24..563391e 100644
--- a/quickbooks/objects/purchaseorder.py
+++ b/quickbooks/objects/purchaseorder.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.objects.detailline import DetailLine, ItemBasedExpenseLine, AccountBasedExpenseLine, \
     TDSLine
 from .base import Ref, Address, QuickbooksManagedObject, LinkedTxnMixin, \
@@ -8,7 +6,6 @@
 from ..mixins import DeleteMixin, SendMixin
 
 
-@python_2_unicode_compatible
 class PurchaseOrder(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin, SendMixin):
     """
     QBO definition: The PurchaseOrder entity is a non-posting transaction representing a request to purchase
diff --git a/quickbooks/objects/recurringtransaction.py b/quickbooks/objects/recurringtransaction.py
index 0845d18..2bfb3fe 100644
--- a/quickbooks/objects/recurringtransaction.py
+++ b/quickbooks/objects/recurringtransaction.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from .bill import Bill
 from .creditmemo import CreditMemo
 from .deposit import Deposit
@@ -15,6 +13,7 @@
 from .base import Ref, QuickbooksBaseObject
 from ..mixins import UpdateNoIdMixin, ListMixin, ReadMixin, DeleteNoIdMixin
 
+
 class ScheduleInfo(QuickbooksBaseObject):
     def __init__(self):
         super(ScheduleInfo, self).__init__()
@@ -23,20 +22,20 @@ def __init__(self):
         self.EndDate = None
         self.DaysBefore = None
         self.MaxOccurrences = None
-        
+
         self.RemindDays = None
         self.IntervalType = None
         self.NumInterval = None
-        
+
         self.DayOfMonth = None
         self.DayOfWeek = None
         self.MonthOfYear = None
         self.WeekOfMonth = None
-        
+
         self.NextDate = None
         self.PreviousDate = None
 
-        
+
 class RecurringInfo(QuickbooksBaseObject):
     class_dict = {
         "ScheduleInfo": ScheduleInfo
@@ -52,7 +51,7 @@ def __init__(self):
         self.Active = False
 
 
-class Recurring():    
+class Recurring():
     class_dict = {
         "RecurringInfo": RecurringInfo,
         "RecurDataRef": Ref
@@ -107,7 +106,6 @@ class RecurringPurchaseOrder(PurchaseOrder):
     class_dict = {**PurchaseOrder.class_dict, **Recurring.class_dict}
 
 
-@python_2_unicode_compatible
 class RecurringTransaction(QuickbooksBaseObject, ReadMixin, UpdateNoIdMixin, ListMixin, DeleteNoIdMixin):
     """
     QBO definition: A RecurringTransaction object refers to scheduling creation of transactions,
@@ -129,4 +127,4 @@ class RecurringTransaction(QuickbooksBaseObject, ReadMixin, UpdateNoIdMixin, Lis
         "PurchaseOrder": RecurringPurchaseOrder
     }
 
-    qbo_object_name = "RecurringTransaction"
\ No newline at end of file
+    qbo_object_name = "RecurringTransaction"
diff --git a/quickbooks/objects/refundreceipt.py b/quickbooks/objects/refundreceipt.py
index ca45c65..fc56506 100644
--- a/quickbooks/objects/refundreceipt.py
+++ b/quickbooks/objects/refundreceipt.py
@@ -1,5 +1,3 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.objects import CreditCardPayment
 from .base import Ref, CustomField, QuickbooksManagedObject, \
     LinkedTxnMixin, QuickbooksTransactionEntity, LinkedTxn, Address, EmailAddress, QuickbooksBaseObject, CustomerMemo
@@ -8,7 +6,6 @@
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class RefundReceiptCheckPayment(QuickbooksBaseObject):
     qbo_object_name = "CheckPayment"
 
@@ -24,7 +21,6 @@ def __str__(self):
         return self.CheckNum
 
 
-@python_2_unicode_compatible
 class RefundReceipt(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: RefundReceipt represents a refund to the customer for a product or service that was given.
@@ -35,8 +31,8 @@ class RefundReceipt(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionE
         "TxnTaxDetail": TxnTaxDetail,
         "DepositToAccountRef": Ref,
         "CustomerRef": Ref,
-        "BillAddr":  Address,
-        "ShipAddr":  Address,
+        "BillAddr": Address,
+        "ShipAddr": Address,
         "ClassRef": Ref,
         "BillEmail": EmailAddress,
         "PaymentMethodRef": Ref,
diff --git a/quickbooks/objects/salesreceipt.py b/quickbooks/objects/salesreceipt.py
index 91ff18e..83b55a2 100644
--- a/quickbooks/objects/salesreceipt.py
+++ b/quickbooks/objects/salesreceipt.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import Ref, CustomField, QuickbooksManagedObject, LinkedTxnMixin, Address, \
     EmailAddress, QuickbooksTransactionEntity, LinkedTxn
 from .tax import TxnTaxDetail
@@ -6,7 +5,6 @@
 from ..mixins import QuickbooksPdfDownloadable, DeleteMixin
 
 
-@python_2_unicode_compatible
 class SalesReceipt(DeleteMixin, QuickbooksPdfDownloadable, QuickbooksManagedObject,
                    QuickbooksTransactionEntity, LinkedTxnMixin):
     """
diff --git a/quickbooks/objects/tax.py b/quickbooks/objects/tax.py
index 295a789..aa51507 100644
--- a/quickbooks/objects/tax.py
+++ b/quickbooks/objects/tax.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject, Ref, QuickbooksManagedObject
 
 
-@python_2_unicode_compatible
 class TaxLineDetail(QuickbooksBaseObject):
     class_dict = {
         "TaxRateRef": Ref
@@ -18,7 +16,6 @@ def __str__(self):
         return str(self.TaxPercent)
 
 
-@python_2_unicode_compatible
 class TaxLine(QuickbooksBaseObject):
     class_dict = {
         "TaxLineDetail": TaxLineDetail
@@ -33,7 +30,6 @@ def __str__(self):
         return str(self.Amount)
 
 
-@python_2_unicode_compatible
 class TxnTaxDetail(QuickbooksBaseObject):
     class_dict = {
         "TxnTaxCodeRef": Ref,
diff --git a/quickbooks/objects/taxagency.py b/quickbooks/objects/taxagency.py
index 85de9ad..171e1d4 100644
--- a/quickbooks/objects/taxagency.py
+++ b/quickbooks/objects/taxagency.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksTransactionEntity, QuickbooksManagedObject
 
 
-@python_2_unicode_compatible
 class TaxAgency(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: Tax Agency is an entity that is associated with a tax rate and identifies the agency to which that tax rate
diff --git a/quickbooks/objects/taxcode.py b/quickbooks/objects/taxcode.py
index 8943dff..aa720dc 100644
--- a/quickbooks/objects/taxcode.py
+++ b/quickbooks/objects/taxcode.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from quickbooks.mixins import ListMixin, ReadMixin
 from .base import QuickbooksTransactionEntity, Ref, QuickbooksBaseObject
 
@@ -29,7 +28,6 @@ def __init__(self):
         self.TaxRateDetail = []
 
 
-@python_2_unicode_compatible
 class TaxCode(QuickbooksTransactionEntity, QuickbooksBaseObject, ReadMixin, ListMixin):
     """
     QBO definition: A TaxCode object is used to track the taxable or non-taxable status of products,
diff --git a/quickbooks/objects/taxrate.py b/quickbooks/objects/taxrate.py
index d172919..af872f8 100644
--- a/quickbooks/objects/taxrate.py
+++ b/quickbooks/objects/taxrate.py
@@ -1,10 +1,7 @@
-from six import python_2_unicode_compatible
-
 from quickbooks.mixins import ListMixin, ReadMixin
 from .base import QuickbooksTransactionEntity, Ref, QuickbooksBaseObject
 
 
-@python_2_unicode_compatible
 class TaxRate(QuickbooksTransactionEntity, QuickbooksBaseObject, ReadMixin, ListMixin):
     """
     QBO definition: A TaxRate object represents rate applied to calculate tax liability. Use the TaxService
@@ -34,5 +31,3 @@ def __init__(self):
 
     def __str__(self):
         return self.Name
-
-
diff --git a/quickbooks/objects/taxservice.py b/quickbooks/objects/taxservice.py
index 84819b8..870d906 100644
--- a/quickbooks/objects/taxservice.py
+++ b/quickbooks/objects/taxservice.py
@@ -1,10 +1,8 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksBaseObject
 from ..mixins import UpdateMixin
 from ..client import QuickBooks
 
 
-@python_2_unicode_compatible
 class TaxRateDetails(QuickbooksBaseObject):
     qbo_object_name = "TaxRateDetails"
 
@@ -20,7 +18,6 @@ def __str__(self):
         return self.TaxRateName
 
 
-@python_2_unicode_compatible
 class TaxService(QuickbooksBaseObject, UpdateMixin):
     """
     QBO definition: The TaxService endpoint allows you to perform the following actions:
diff --git a/quickbooks/objects/term.py b/quickbooks/objects/term.py
index 26466eb..674ac98 100644
--- a/quickbooks/objects/term.py
+++ b/quickbooks/objects/term.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksManagedObject, QuickbooksTransactionEntity, Ref
 
 
-@python_2_unicode_compatible
 class Term(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: The Term entity represents the terms under which a sale is made, typically expressed in the
@@ -38,4 +36,3 @@ def to_ref(self):
         ref.value = self.Id
 
         return ref
-
diff --git a/quickbooks/objects/timeactivity.py b/quickbooks/objects/timeactivity.py
index 132471e..feea888 100644
--- a/quickbooks/objects/timeactivity.py
+++ b/quickbooks/objects/timeactivity.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin, AttachableRef
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class TimeActivity(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: The TimeActivity entity represents a record of time worked by a vendor or employee.
diff --git a/quickbooks/objects/trackingclass.py b/quickbooks/objects/trackingclass.py
index cd47cd7..da084bd 100644
--- a/quickbooks/objects/trackingclass.py
+++ b/quickbooks/objects/trackingclass.py
@@ -1,8 +1,6 @@
-from six import python_2_unicode_compatible
 from .base import QuickbooksManagedObject, QuickbooksTransactionEntity, Ref
 
 
-@python_2_unicode_compatible
 class Class(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: Classes provide a way to track different segments of the business so they're
diff --git a/quickbooks/objects/transfer.py b/quickbooks/objects/transfer.py
index 42a593e..d495435 100644
--- a/quickbooks/objects/transfer.py
+++ b/quickbooks/objects/transfer.py
@@ -1,9 +1,7 @@
-from six import python_2_unicode_compatible
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class Transfer(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: A Transfer represents a transaction where funds are moved between two accounts from the
diff --git a/quickbooks/objects/vendor.py b/quickbooks/objects/vendor.py
index a0e2f9e..fa860c9 100644
--- a/quickbooks/objects/vendor.py
+++ b/quickbooks/objects/vendor.py
@@ -1,4 +1,3 @@
-from six import python_2_unicode_compatible
 from .base import Address, PhoneNumber, EmailAddress, WebAddress, Ref, QuickbooksBaseObject, \
     QuickbooksManagedObject, QuickbooksTransactionEntity
 
@@ -15,7 +14,6 @@ def __init__(self):
         self.Telephone = None
 
 
-@python_2_unicode_compatible
 class Vendor(QuickbooksManagedObject, QuickbooksTransactionEntity):
     """
     QBO definition: The Vendor represents the seller from whom your company purchases any service or product.
diff --git a/quickbooks/objects/vendorcredit.py b/quickbooks/objects/vendorcredit.py
index 53d8abd..3f57d50 100644
--- a/quickbooks/objects/vendorcredit.py
+++ b/quickbooks/objects/vendorcredit.py
@@ -1,12 +1,9 @@
-from six import python_2_unicode_compatible
-
 from .base import Ref, QuickbooksManagedObject, QuickbooksTransactionEntity, \
     LinkedTxnMixin
 from .detailline import DetailLine, AccountBasedExpenseLine, ItemBasedExpenseLine, TDSLine
 from ..mixins import DeleteMixin
 
 
-@python_2_unicode_compatible
 class VendorCredit(DeleteMixin, QuickbooksManagedObject, QuickbooksTransactionEntity, LinkedTxnMixin):
     """
     QBO definition: The Vendor Credit entity is an accounts payable transaction that represents a refund or credit
@@ -47,4 +44,4 @@ def __init__(self):
         self.Line = []
 
     def __str__(self):
-        return str(self.TotalAmt)
\ No newline at end of file
+        return str(self.TotalAmt)
diff --git a/quickbooks/utils.py b/quickbooks/utils.py
index 91f39d8..5387e95 100644
--- a/quickbooks/utils.py
+++ b/quickbooks/utils.py
@@ -1,7 +1,3 @@
-import six
-import sys
-
-
 def build_where_clause(**kwargs):
     where_clause = ""
 
@@ -9,11 +5,7 @@ def build_where_clause(**kwargs):
         where = []
 
         for key, value in kwargs.items():
-            if isinstance(value, six.text_type) and sys.version_info[0] == 2:
-                # If using python 2, encode unicode as string.
-                encoded_value = value.encode('utf-8')
-                where.append("{0} = '{1}'".format(key, encoded_value.replace(r"'", r"\'")))
-            elif isinstance(value, six.string_types):
+            if isinstance(value, str):
                 where.append("{0} = '{1}'".format(key, value.replace(r"'", r"\'")))
             else:
                 where.append("{0} = {1}".format(key, value))
@@ -30,11 +22,7 @@ def build_choose_clause(choices, field):
         where = []
 
         for choice in choices:
-            if isinstance(choice, six.text_type) and sys.version_info[0] == 2:
-                # If using python 2, encode unicode as string.
-                encoded_choice = choice.encode('utf-8')
-                where.append("'{0}'".format(encoded_choice.replace(r"'", r"\'")))
-            elif isinstance(choice, six.string_types):
+            if isinstance(choice, str):
                 where.append("'{0}'".format(choice.replace(r"'", r"\'")))
             else:
                 where.append("{0}".format(choice))
diff --git a/requirements.txt b/requirements.txt
index 9c49b1c..e22107a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 intuit-oauth==1.2.4
 rauth>=0.7.3
-requests>=2.26.0
-simplejson>=3.17.0
-six>=1.14.0
+requests>=2.31.0
+simplejson>=3.19.1
\ No newline at end of file
diff --git a/setup.py b/setup.py
index a52279b..665978c 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@ def read(*parts):
         return fp.read()
 
 
-VERSION = (0, 9, 3)
+VERSION = (0, 9, 4)
 version = '.'.join(map(str, VERSION))
 
 setup(
@@ -33,9 +33,8 @@ def read(*parts):
         'setuptools',
         'intuit-oauth==1.2.4',
         'rauth>=0.7.3',
-        'requests>=2.26.0',
-        'simplejson>=3.17.0',
-        'six>=1.14.0',
+        'requests>=2.31.0',
+        'simplejson>=3.19.1',
         'python-dateutil',
     ],
 
@@ -52,5 +51,5 @@ def read(*parts):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
     ],
-    packages=find_packages(),
+    packages=find_packages(exclude=("tests",)),
 )
diff --git a/tests/unit/test_mixins.py b/tests/unit/test_mixins.py
index 613543a..c3ff3ed 100644
--- a/tests/unit/test_mixins.py
+++ b/tests/unit/test_mixins.py
@@ -2,7 +2,7 @@
 import os
 
 import unittest
-from future.moves.urllib.parse import quote
+from urllib.parse import quote
 
 from quickbooks.objects import Bill, Invoice