Port to Python 3.

src/allmydata/scripts/tahoe_webopen.py

@@ -1,4 +1,14 @@
-from past.builtins import unicode
+"""
+Ported to Python 3.
+"""
+from __future__ import unicode_literals
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from future.utils import PY2
+if PY2:
+    from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, bytes, dict, list, object, range, str, max, min  # noqa: F401
 
 from urllib.parse import quote as url_quote
 
@@ -18,7 +28,7 @@ def webopen(options, opener=None):
         except UnknownAliasError as e:
             e.display(stderr)
             return 1
-        path = unicode(path, "utf-8")
+        path = str(path, "utf-8")
         if path == '/':
             path = ''
         url = nodeurl + "uri/%s" % url_quote(rootcap)

src/allmydata/util/_python3.py

@@ -116,6 +116,7 @@ PORTED_MODULES = [
     "allmydata.scripts.tahoe_run",
     "allmydata.scripts.tahoe_status",
     "allmydata.scripts.tahoe_unlink",
+    "allmydata.scripts.tahoe_webopen",
     "allmydata.scripts.types_",
     "allmydata.stats",
     "allmydata.storage_client",