Removed internal dependency on pip.utils, which makes the library… (

#71)

* Removed internal dependency on ``pip.utils``, which makes the library compatible with pip 10. Fixes #70

* Fix lint

* Update inline coverage settings for cached_property

* Fix

docs/changelog.rst

@@ -6,6 +6,11 @@ Changelog
 `Unreleased`_
 -------------
 
+Fixed
+~~~~~
+
+- Removed internal dependency on ``pip.utils``, which makes the library compatible with pip 10. `#70`_ (`butorov`_, `Stranger6667`_)
+
 `0.6.4`_ - 2018-03-28
 ---------------------
 
@@ -264,6 +269,7 @@ Fixed
 .. _0.1.2: https://github.com/Stranger6667/pyoffers/compare/0.1.1...0.1.2
 .. _0.1.1: https://github.com/Stranger6667/pyoffers/compare/0.1.0...0.1.1
 
+.. _#70: https://github.com/Stranger6667/pyoffers/issues/70
 .. _#52: https://github.com/Stranger6667/pyoffers/issues/52
 .. _#51: https://github.com/Stranger6667/pyoffers/issues/51
 .. _#48: https://github.com/Stranger6667/pyoffers/issues/48
@@ -306,5 +312,6 @@ Fixed
 .. _#5: https://github.com/Stranger6667/pyoffers/issues/5
 .. _#3: https://github.com/Stranger6667/pyoffers/issues/3
 
-.. _Stranger6667: https://github.com/Stranger6667
 .. _iamanikeev: https://github.com/iamanikeev
+.. _butorov: https://github.com/butorov
+.. _Stranger6667: https://github.com/Stranger6667

pyoffers/models/raw_log.py

@@ -3,8 +3,7 @@
 from io import BytesIO, StringIO
 from zipfile import ZipFile
 
-from pip.utils import cached_property
-
+from ..utils import cached_property
 from .core import Model, ModelManager
 
 

pyoffers/utils.py

@@ -2,6 +2,18 @@
 from functools import singledispatch
 
 
+class cached_property(object):
+
+    def __init__(self, func):
+        self.func = func
+
+    def __get__(self, obj, cls):
+        if obj is None:  # pragma: no cover
+            return self
+        value = obj.__dict__[self.func.__name__] = self.func(obj)
+        return value
+
+
 def prepare_query_params(**kwargs):
     """
     Prepares given parameters to be used in querystring.