diff -r 2372284d9457 -r 687b865b95ad hgext/largefiles/storefactory.py
--- a/hgext/largefiles/storefactory.py	Sun Oct 06 09:45:02 2019 -0400
+++ b/hgext/largefiles/storefactory.py	Sun Oct 06 09:48:39 2019 -0400
@@ -31,18 +31,18 @@
         if lfpullsource:
             path = ui.expandpath(lfpullsource)
         elif put:
-            path = ui.expandpath('default-push', 'default')
+            path = ui.expandpath(b'default-push', b'default')
         else:
-            path = ui.expandpath('default')
+            path = ui.expandpath(b'default')
 
         # ui.expandpath() leaves 'default-push' and 'default' alone if
         # they cannot be expanded: fallback to the empty string,
         # meaning the current directory.
         if repo is None:
-            path = ui.expandpath('default')
+            path = ui.expandpath(b'default')
             path, _branches = hg.parseurl(path)
             remote = hg.peer(repo or ui, {}, path)
-        elif path == 'default-push' or path == 'default':
+        elif path == b'default-push' or path == b'default':
             remote = repo
         else:
             path, _branches = hg.parseurl(path)
@@ -50,18 +50,18 @@
 
     # The path could be a scheme so use Mercurial's normal functionality
     # to resolve the scheme to a repository and use its path
-    path = util.safehasattr(remote, 'url') and remote.url() or remote.path
+    path = util.safehasattr(remote, b'url') and remote.url() or remote.path
 
     match = _scheme_re.match(path)
     if not match:  # regular filesystem path
-        scheme = 'file'
+        scheme = b'file'
     else:
         scheme = match.group(1)
 
     try:
         storeproviders = _storeprovider[scheme]
     except KeyError:
-        raise error.Abort(_('unsupported URL scheme %r') % scheme)
+        raise error.Abort(_(b'unsupported URL scheme %r') % scheme)
 
     for classobj in storeproviders:
         try:
@@ -70,16 +70,16 @@
             pass
 
     raise error.Abort(
-        _('%s does not appear to be a largefile store')
+        _(b'%s does not appear to be a largefile store')
         % util.hidepassword(path)
     )
 
 
 _storeprovider = {
-    'file': [localstore.localstore],
-    'http': [wirestore.wirestore],
-    'https': [wirestore.wirestore],
-    'ssh': [wirestore.wirestore],
+    b'file': [localstore.localstore],
+    b'http': [wirestore.wirestore],
+    b'https': [wirestore.wirestore],
+    b'ssh': [wirestore.wirestore],
 }
 
 _scheme_re = re.compile(br'^([a-zA-Z0-9+-.]+)://')