add pull request API

there are a few little issues remaining.  Mostly regarding handling
meaningful non-20x response codes

1 files changed, 43 insertions, 0 deletions

diff --git a/pygithub3/requests/pull_requests/comments.py b/pygithub3/requests/pull_requests/comments.py
new file mode 100644
index 0000000..fa1e5b6
--- /dev/null
+++ b/pygithub3/requests/pull_requests/comments.py
@@ -0,0 +1,43 @@
+from pygithub3.requests.base import Request
+from pygithub3.resources.pull_requests import Comment
+
+
+class List(Request):
+    uri = 'repos/{user}/{repo}/pulls/{number}/comments'
+    resource = Comment
+
+
+class Get(Request):
+    uri = 'repos/{user}/{repo}/pulls/comments/{number}'
+    resource = Comment
+
+
+class Create(Request):
+    uri = 'repos/{user}/{repo}/pulls/{number}/comments'
+    resource = Comment
+    body_schema = {
+        'schema': ('body', 'commit_id', 'path', 'position', 'in_reply_to'),
+        'required': ('body',),
+    }
+
+    def validate_body(self, body):
+        if (not ('commit_id' in body and
+                 'path' in body and
+                 'position' in body) and
+            not 'in_reply_to' in body):
+            raise ValidationError('supply either in_reply_to or commit_id, '
+                                  'path, and position')
+
+
+class Edit(Request):
+    uri = 'repos/{user}/{repo}/pulls/comments/{number}'
+    resource = Comment
+    body_schema = {
+        'schema': ('body',),
+        'required': ('body',),
+    }
+
+
+class Delete(Request):
+    uri = 'repos/{user}/{repo}/pulls/comments/{number}'
+    resource = Comment