diff --git a/hgext/largefiles/overrides.py b/hgext/largefiles/overrides.py
--- a/hgext/largefiles/overrides.py
+++ b/hgext/largefiles/overrides.py
@@ -824,7 +824,7 @@
     """Override push command and store --lfrev parameters in opargs"""
     lfrevs = kwargs.pop(r'lfrev', None)
     if lfrevs:
-        opargs = kwargs.setdefault('opargs', {})
+        opargs = kwargs.setdefault(r'opargs', {})
         opargs['lfrevs'] = scmutil.revrange(repo, lfrevs)
     return orig(ui, repo, *args, **kwargs)
 
diff --git a/hgext/lfs/__init__.py b/hgext/lfs/__init__.py
--- a/hgext/lfs/__init__.py
+++ b/hgext/lfs/__init__.py
@@ -220,12 +220,12 @@
     if 'lfs' not in repo.requirements:
         def checkrequireslfs(ui, repo, **kwargs):
             if 'lfs' not in repo.requirements:
-                last = kwargs.get('node_last')
+                last = kwargs.get(r'node_last')
                 _bin = node.bin
                 if last:
-                    s = repo.set('%n:%n', _bin(kwargs['node']), _bin(last))
+                    s = repo.set('%n:%n', _bin(kwargs[r'node']), _bin(last))
                 else:
-                    s = repo.set('%n', _bin(kwargs['node']))
+                    s = repo.set('%n', _bin(kwargs[r'node']))
             for ctx in s:
                 # TODO: is there a way to just walk the files in the commit?
                 if any(ctx[f].islfs() for f in ctx.files() if f in ctx):
diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -593,7 +593,8 @@
                     self.state[oldrev] = newrev
 
         if 'qtip' in repo.tags():
-            updatemq(repo, self.state, self.skipped, **opts)
+            updatemq(repo, self.state, self.skipped,
+                     **pycompat.strkwargs(opts))
 
         # restore original working directory
         # (we do this before stripping)
diff --git a/hgext/split.py b/hgext/split.py
--- a/hgext/split.py
+++ b/hgext/split.py
@@ -24,6 +24,7 @@
     hg,
     obsolete,
     phases,
+    pycompat,
     registrar,
     revsetlang,
     scmutil,
@@ -160,7 +161,7 @@
             'interactive': True,
             'message': header + ctx.description(),
         })
-        commands.commit(ui, repo, **opts)
+        commands.commit(ui, repo, **pycompat.strkwargs(opts))
         newctx = repo['.']
         committed.append(newctx)
 
diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -2170,10 +2170,11 @@
             hookargs = {}
             if tr is not None:
                 hookargs.update(tr.hookargs)
-            hookargs['namespace'] = namespace
-            hookargs['key'] = key
-            hookargs['old'] = old
-            hookargs['new'] = new
+            hookargs = pycompat.strkwargs(hookargs)
+            hookargs[r'namespace'] = namespace
+            hookargs[r'key'] = key
+            hookargs[r'old'] = old
+            hookargs[r'new'] = new
             self.hook('prepushkey', throw=True, **hookargs)
         except error.HookAbort as exc:
             self.ui.write_err(_("pushkey-abort: %s\n") % exc)
diff --git a/mercurial/profiling.py b/mercurial/profiling.py
--- a/mercurial/profiling.py
+++ b/mercurial/profiling.py
@@ -143,7 +143,7 @@
         elif profformat == 'hotpath':
             # inconsistent config: profiling.showmin
             limit = ui.configwith(fraction, 'profiling', 'showmin', 0.05)
-            kwargs['limit'] = limit
+            kwargs[r'limit'] = limit
 
         statprof.display(fp, data=data, format=displayformat, **kwargs)