[PATCH 5 of 5] bundle2: implement a basic __repr__ for bundle2 part

[Pierre-Yves David]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at ens-lyon.org>
# Date 1486041588 -3600
#      Thu Feb 02 14:19:48 2017 +0100
# Node ID c370b3f11fc3fcba03516acbe46242cf672ccffd
# Parent  598c774d5b19faa5d924bfb73f997d02480b5e28
# EXP-Topic pushcleanup
bundle2: implement a basic __repr__ for bundle2 part

We display basic data as the part id and part type. This make debugging bundle2
related code friendlier.

diff -r 598c774d5b19 -r c370b3f11fc3 mercurial/bundle2.py
--- a/mercurial/bundle2.py	Thu Feb 02 11:03:41 2017 +0100
+++ b/mercurial/bundle2.py	Thu Feb 02 14:19:48 2017 +0100
@@ -862,6 +862,11 @@
         self._generated = None
         self.mandatory = mandatory
 
+    def __repr__(self):
+        cls = "%s.%s" % (self.__class__.__module__, self.__class__.__name__)
+        return ('<%s object at %x; id: %s; type: %s; mandatory: %s>'
+                % (cls, id(self), self.id, self.type, self.mandatory))
+
     def copy(self):
         """return a copy of the part