This is an archive of the discontinued Mercurial Phabricator instance.

Status	Author	Revision
Accepted	indygreg	D12370 wireprotov2: delete remnants of wireprotov2
Accepted	indygreg	D12369 run-tests: require Python 3.6
Needs Revision	indygreg	D12368 mercurial: use io.BytesIO instead of util.stringio
Accepted	indygreg	D12367 hgext: use io.BytesIO instead of util.stringio
Needs Revision	indygreg	D12366 pycompat: add return type annotations
Closed	indygreg	D12365 import-checker: allow symbol imports from typing module
Closed	indygreg	D12364 pycompat: remove json.loads polyfill for Python 3.5
Closed	indygreg	D12363 pycompat: remove check for Python >= 3.6
Closed	indygreg	D12362 hgdemandimport: delete check for Python 3.5
Closed	indygreg	D12361 hg: always import hgdemandimport

Diff 32616

	import contextlib			import contextlib
	import importlib.util			import importlib.util
	import sys			import sys

	from . import tracing			from . import tracing

	_deactivated = False			_deactivated = False

	# Python 3.5's LazyLoader doesn't work for some reason.
	# https://bugs.python.org/issue26186 is a known issue with extension
	# importing. But it appears to not have a meaningful effect with
	# Mercurial.
	_supported = sys.version_info[0:2] >= (3, 6)


	class _lazyloaderex(importlib.util.LazyLoader):			class _lazyloaderex(importlib.util.LazyLoader):
	"""This is a LazyLoader except it also follows the _deactivated global and			"""This is a LazyLoader except it also follows the _deactivated global and
	the ignore list.			the ignore list.
	"""			"""

	def exec_module(self, module):			def exec_module(self, module):
	"""Make the module load lazily."""			"""Make the module load lazily."""
	for finder in sys.meta_path:			for finder in sys.meta_path:
	new_finders.append(			new_finders.append(
	finder._finder if isinstance(finder, LazyFinder) else finder			finder._finder if isinstance(finder, LazyFinder) else finder
	)			)
	sys.meta_path[:] = new_finders			sys.meta_path[:] = new_finders


	def enable():			def enable():
	if not _supported:
	return

	new_finders = []			new_finders = []
	for finder in sys.meta_path:			for finder in sys.meta_path:
	new_finders.append(			new_finders.append(
	LazyFinder(finder) if not isinstance(finder, LazyFinder) else finder			LazyFinder(finder) if not isinstance(finder, LazyFinder) else finder
	)			)
	sys.meta_path[:] = new_finders			sys.meta_path[:] = new_finders