py3: add r'' prefixes to fix kwargs handling in hgext/sparse.py This fixes two of sparse tests which were failing on Python 3. # skip-blame because just r'' prefixes Differential Revision: https://phab.mercurial-scm.org/D3634

py3: use bytes in tests/printenv.py This patch add b'' prefixes and adds some .encode() calls to convert str to bytes on Python 3. Differential Revision: https://phab.mercurial-scm.org/D3633

py3: use stringutil.pprint() to prevent b'' prefixes in output This patch uses stringutil.pprint to print a list with bytes in it to prevent the b'' prefixes in the output. Differential Revision: https://phab.mercurial-scm.org/D3632

py3: use pycompat.fsencode to convert path to bytes Differential Revision: https://phab.mercurial-scm.org/D3631

py3: add b'' prefixes in tests/test-ssh.t and tests/test-ssh-bundle1.t # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D3630

py3: add b'' prefixes in contrib/hg-ssh # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D3629

state: write the version number in plain text on top of state files We will soon be using CBOR format to write the data in state files. But we should not write the version number of the state files in CBOR format and we should rather write it in plain text because in future we can change the format of state files and we should be able to parse the version number of state file without requiring to understand a certain format. This will help us in making sure we have a good compatibility story with other versions of state files. Differential Revision: https://phab.mercurial-scm.org/D3579

state: set canonical=True to write deterministically Passing canonical=True to cbor.dump() will help in writing the data deterministically. This will sort all the sets and dicts before writing to the file. Thanks indygreg for recommending to use it. Differential Revision: https://phab.mercurial-scm.org/D3578