Below is the patch for fixing this issue:

Index: userlib.py

\--- userlib.py \(revision 7576\)
+++ userlib.py \(working copy\)
@@ -249,7 +249,7 @@
for c in result\['query'\]\['usercontribs'\]:
yield \(wikipedia.Page\(self.site\(\), c\['title'\], defaultNamespace=c\['ns'\]\),
c\['revid'\],
\- wikipedia.parsetime2stamp\(c\['timestamp'\]\),
\+ c\['timestamp'\],
c\['comment'\]
\)
nbresults += 1

Here is the patch for fixing this issue. Please commit it.

Index: userlib.py

\--- userlib.py \(revision 7869\)
+++ userlib.py \(working copy\)
@@ -223,7 +223,7 @@
for c in result\['query'\]\['usercontribs'\]:
yield \(wikipedia.Page\(self.site\(\), c\['title'\], defaultNamespace=c\['ns'\]\),
c\['revid'\],
\- wikipedia.parsetime2stamp\(c\['timestamp'\]\),
\+ c\['timestamp'\],
c\['comment'\]
\)
nbresults += 1

I was able to reproduce