--- a/mercurial/templatekw.py Wed Apr 15 20:10:35 2020 +0200
+++ b/mercurial/templatekw.py Thu Apr 16 22:30:11 2020 +0900
@@ -562,7 +562,11 @@
"""helper method to generate a template keyword for a namespace"""
repo = context.resource(mapping, b'repo')
ctx = context.resource(mapping, b'ctx')
- ns = repo.names[namespace]
+ ns = repo.names.get(namespace)
+ if ns is None:
+ # namespaces.addnamespace() registers new template keyword, but
+ # the registered namespace might not exist in the current repo.
+ return
names = ns.names(repo, ctx.node())
return compatlist(
context, mapping, ns.templatename, names, plural=namespace