Fix convert argument in recent attrs versions

Starting from 17.4.0, attrs don't support convert.
converter was introduced as replacement.

This makes sure things can at least get instanciated with recent
attrs.

Author: evrardjp

gogs_client/entities.py

@@ -102,7 +102,7 @@ class GogsRepo(GogsEntity):
     #: The owner of the repository
     #:
     #: :type: :class:`~GogsUser`
-    owner = attr.ib(convert=lambda parsed_json: GogsUser.from_json(parsed_json))
+    owner = attr.ib(converter=lambda parsed_json: GogsUser.from_json(parsed_json))
 
     #: The name of the repository
     #:
@@ -145,12 +145,12 @@ def urls(self):
     #: Permissions for the repository
     #:
     #: :type: :class:`~GogsRepo.Permissions`
-    permissions = attr.ib(convert=lambda data: GogsRepo.Permissions.from_json(data))
+    permissions = attr.ib(converter=lambda data: GogsRepo.Permissions.from_json(data))
 
     #: Gets the repository's parent, when a fork
     #:
     #: :type: :class:`~GogsRepo`
-    parent = attr.ib(convert=lambda data: GogsRepo.from_json(data) if data else None, default=None)
+    parent = attr.ib(converter=lambda data: GogsRepo.from_json(data) if data else None, default=None)
 
     #: The description of the repository
     #:
@@ -299,7 +299,7 @@ class GogsBranch(GogsEntity):
     #: The HEAD commit of the branch
     #:
     #: :type: :class:`~GogsCommit`
-    commit = attr.ib(convert=lambda parsed_json: GogsCommit.from_json(parsed_json))
+    commit = attr.ib(converter=lambda parsed_json: GogsCommit.from_json(parsed_json))
 
 
 @attr.s(frozen=True)

requirements.txt

@@ -1,3 +1,3 @@
-attrs
+attrs>=17.4.0
 future
 requests