subrepo: cleanup of subrepo filematcher logic Previously in the worst case we iterated the files in matcher twice and had a method only for this, which reimplemented logic in subdirmatchers constructor. So we replaced the method with a subdirmatcher.files() call.

pycompat: delay loading modules registered to stub Replacement _pycompatstub designed to be compatible with our demandimporter. try-except is replaced by version comparison because ImportError will no longer be raised immediately.

py3: import builtin wrappers automagically by code transformer This should be less invasive than mucking builtins. Since tokenize.untokenize() looks start/end positions of tokens, we calculates them from the NEWLINE token of the future import.

py3: provide (del|get|has|set)attr wrappers that accepts bytes These functions will be imported automagically by our code transformer. getattr() and setattr() are widely used in our code. We wouldn't probably want to rewrite every single call of getattr/setattr. delattr() and hasattr() aren't that important, but they are functions of the same kind.

py3: check python version to enable builtins hack Future patches will add (del|get|has|set)attr wrappers.

py3: move xrange alias next to import lines Builtin functions should be available in compatibility code.

check-code: allow assignment to hasattr variable

debugobsolete: add formatter support (issue5134) It appears that computing index isn't cheap if --rev is specified. That's why "index" field is available only if --index is specified. I've named marker.flags() as "flag" because "flags" implies a list or dict in template world. Thanks to Piotr Listkiewicz for the initial implementation of this patch.