Fix windows specific sort order quirks

Signed-off-by: Dan Ryan <[email protected]>

pipenv/vendor/pythonfinder/models/python.py

@@ -354,7 +354,7 @@ class PythonVersion(object):
     architecture = attr.ib(default=None)  # type: Optional[str]
     comes_from = attr.ib(default=None)  # type: Optional[PathEntry]
     executable = attr.ib(default=None)  # type: Optional[str]
-    company = attr.ib(default="PythonCore")  # type: Optional[str]
+    company = attr.ib(default=None)  # type: Optional[str]
     name = attr.ib(default=None, type=str)
 
     def __getattribute__(self, key):

pipenv/vendor/pythonfinder/pythonfinder.py

@@ -308,7 +308,11 @@ def find_all_python_versions(
         )
         if not isinstance(versions, Iterable):
             versions = [versions]
-        path_list = sorted(versions, key=version_sort, reverse=True)
+        # This list has already been mostly sorted on windows, we don't need to reverse it again
+        if os.name == "nt":
+            path_list = sorted(versions, key=version_sort)
+        else:
+            path_list = sorted(versions, key=version_sort, reverse=True)
         path_map = {}  # type: Dict[str, PathEntry]
         for path in path_list:
             try:
@@ -317,4 +321,4 @@ def find_all_python_versions(
                 resolved_path = path.path.absolute()
             if not path_map.get(resolved_path.as_posix()):
                 path_map[resolved_path.as_posix()] = path
-        return list(path_map.values())
+        return path_list