[bugfix] Add Timestamp.__repr__() method to unify the result

Unify representation for Timestamp object
which is different between CPython and Pypy

Bug: T325905
Change-Id: I9b471d120956cb9adac1ecf179bfe0712d5d67e6
---
M pywikibot/time.py
1 file changed, 18 insertions(+), 0 deletions(-)

diff --git a/pywikibot/time.py b/pywikibot/time.py
index 63bca0d..e96a5f7 100644
--- a/pywikibot/time.py
+++ b/pywikibot/time.py
@@ -293,6 +293,11 @@
         """
         return f'{self.posix_timestamp():.6f}'
 
+    def __repr__(self) -> str:
+        """Unify repr string between CPython and Pypy (T325905)."""
+        s = super().__repr__()
+        return f'{type(self).__name__}{s[s.find("("):]}'
+
     def __str__(self) -> str:
         """Return a string format recognized by the API."""
         return self.isoformat()

