diff --git a/.hgeol b/.hgeol
deleted file mode 100644
index eb19a6c88d2..00000000000
--- a/.hgeol
+++ /dev/null
@@ -1,58 +0,0 @@
-[patterns]
-
-# Non human-editable files are binary
-
-**.dsp  = BIN
-**.dsw  = BIN
-**.mk   = BIN
-**.sln  = BIN
-**.vcproj  = BIN
-**.vsprops = BIN
-
-**.aif  = BIN
-**.aifc = BIN
-**.aiff = BIN
-**.au   = BIN
-**.bmp  = BIN
-**.db   = BIN
-**.exe  = BIN
-**.icns = BIN
-**.gif  = BIN
-**.ico  = BIN
-**.info = BIN
-**.jpg  = BIN
-**.pck  = BIN
-**.png  = BIN
-**.psd  = BIN
-**.tar  = BIN
-**.wav  = BIN
-**.whl  = BIN
-**.xar  = BIN
-**.zip  = BIN
-
-Lib/test/cjkencodings/* = BIN
-Lib/test/decimaltestdata/*.decTest = BIN
-Lib/test/sndhdrdata/sndhdr.* = BIN
-Lib/test/test_email/data/msg_26.txt = BIN
-Lib/test/xmltestdata/* = BIN
-
-Lib/venv/scripts/nt/* = BIN
-
-Lib/test/coding20731.py = BIN
-
-# Windows only zlib upstream file
-Modules/zlib/zlib.map = CRLF
-
-# Windows batch files work best with CRLF, there can be subtle problems with LF
-**.bat = CRLF
-
-# The Windows readme is likely to be read in Notepad, so make it readable
-PCbuild/readme.txt = CRLF
-
-# All other files (which presumably are human-editable) are "native".
-# This must be the last rule!
-
-** = native
-
-[repository]
-native = LF
diff --git a/.hgignore b/.hgignore
deleted file mode 100644
index 68c607f2e8d..00000000000
--- a/.hgignore
+++ /dev/null
@@ -1,106 +0,0 @@
-.gdb_history
-.purify
-.svn/
-^.idea/
-^.vscode/
-.DS_Store
-Makefile$
-Makefile.pre$
-TAGS$
-autom4te.cache$
-^build/
-^Doc/build/
-^Doc/venv/
-buildno$
-config.cache
-config.log
-config.status
-config.status.lineno
-db_home
-platform$
-pyconfig.h$
-python$
-python.bat$
-python.exe$
-python-config$
-python-config.py$
-reflog.txt$
-tags$
-Misc/python.pc
-Misc/python-config.sh$
-Modules/Setup$
-Modules/Setup.config
-Modules/Setup.local
-Modules/config.c
-Modules/ld_so_aix$
-^lcov-report/
-^core
-^python-gdb.py
-^python.exe-gdb.py
-^pybuilddir.txt
-
-syntax: glob
-libpython*.a
-libpython*.so*
-libpython*.dylib
-libpython*.dll
-*.swp
-*.o
-*.pyc
-*.pyo
-*.pyd
-*.cover
-*~
-*.gc??
-*.profclang?
-*.profraw
-*.dyn
-Include/pydtrace_probes.h
-Lib/distutils/command/*.pdb
-Lib/lib2to3/*.pickle
-Lib/test/data/*
-Misc/*.wpu
-PC/python_nt*.h
-PC/pythonnt_rc*.h
-PC/*/*.exe
-PC/*/*.exp
-PC/*/*.lib
-PC/*/*.bsc
-PC/*/*.dll
-PC/*/*.pdb
-PC/*/*.user
-PC/*/*.ncb
-PC/*/*.suo
-PC/*/Win32-temp-*
-PC/*/x64-temp-*
-PC/*/amd64
-PCbuild/*.user
-PCbuild/*.suo
-PCbuild/*.*sdf
-PCbuild/*-pgi
-PCbuild/*-pgo
-PCbuild/.vs
-PCbuild/amd64
-PCbuild/obj
-PCbuild/win32
-Tools/unicode/build/
-Tools/unicode/MAPPINGS/
-BuildLog.htm
-__pycache__
-Parser/pgen{,.exe}
-Programs/_freeze_importlib{,.exe}
-Programs/_testembed{,.exe}
-.coverage
-coverage/
-externals/
-htmlcov/
-*.gcda
-*.gcno
-*.gcov
-ipch/
-coverage.info
-Tools/msi/obj
-Tools/ssl/amd64
-Tools/ssl/win32
-.vs/
-.vscode/
diff --git a/.hgtags b/.hgtags
deleted file mode 100644
index 8f51c2ced49..00000000000
--- a/.hgtags
+++ /dev/null
@@ -1,182 +0,0 @@
-64cc5439e10a6fdf984effaf0141e94fa4cc1004 v0.9.8
-78a7ed6953025e7ecdde9585099b01a6ae40b76a v0.9.9
-b15b8cc9b8d10e0352a0b8b7e8d51fa309db6df3 v1.0.1
-0326b5d61445ee3a8d3de28119f9652cb72d2e3f v1.0.2
-832615ec07646e310c85316b8ba6bc9b17ad3547 v1.1
-9895475d18c7b5f32adaf78f71886ae041e4d10c v1.1.1
-16eb4c51ee97169046340998e850a63c65225b0a v1.2b1
-b45c688756d04fb84d4a0d518fc3d7e3cb25fa8d v1.2b2
-9e82daf7605bad7976a9abc997cb5e0abe434078 v1.2b3
-065e31cf5862e27521cf5725b003aed211f091b2 v1.2b4
-e72257e655454d569468da8b1189e0ec336f3536 v1.2
-e63d83f8275853aaaa3d1972cb86564505e65583 v1.3b1
-7d743c865a9aa6bde8b603e32e0542031bba3c33 v1.3
-4fc85c82cc222554ae6b9c0b87776ed5f2b70c6e v1.4b1
-129f1299d4e97e884bbbbdd00baf101d178973e6 v1.4b2
-44a82ac654a4175569deed8e8a94b0cc8edee08d v1.4b3
-db49494c93dc73de06d5721c74eab533a947a92c v1.4
-062aed8a4ce2c91c81b80e29f02faff1cf5a761b v1.5a1
-c9498ac988372575cf7028b86395b900c9b0a840 v1.5a2
-dc5c968ec992aab3d40a7189df0c443d1c7a1a68 v1.5a3
-746654a0af680c7d9b814b210a026eb91bec9533 v1.5a4
-8ff58b5730f06be08fbbdc2bf592226f7a736201 v1.5b1
-eb78658d819fb0af09a8e6f9bedcb670805ed5f6 v1.5b2
-84461011a1a0ab402e352f06748f29fb5b5559e5 v1.5
-44aba4d26b01fbae0403efe654f9fd0347606732 v1.5.1
-fed63ccbe6dc3ac663bfe97a2f7006b1b28568f9 v1.5.2a1
-21d71f2e27248a0f4e393d0fc321ecf9b89321d2 v1.5.2a2
-f08c7a2a56f80741f5f192fd0ebe0b0967a203cf v1.5.2b1
-8fe7ec4b4fc1518fcac89e6bf674fbbce16150a9 v1.5.2b2
-39fb0dcc83dc375c1565ba65dbce0ed59b1359c9 v1.5.2c1
-61c91c7f101bab3149adfcd5646ae40e048de712 v1.5.2
-605eb9326ffe1fd1e43f40e2338d6652ab449fdf v1.6a1
-011bee8fd9f7f4da457ec71596484fb0882c0614 v1.6a2
-35c4fc1414a59888614b9be784a25f233ba67984 v2.0b1
-55bba197d4870cdae62aeca00e20240a756b84f8 v2.0b2
-e276329cce036a5f9e9d3451256dca5984e543dc v2.0c1
-2fa4e35083e02342ca014bf5bfba46aecb816c31 v2.0
-b60831eeab5a06dd3c5e8297a99e39297aa8794b v2.1a1
-b382f1f07ec6b2c95551658b30c6139eeb32077a v2.1a2
-d0c830db5e68edd4aaa3401216e610c9ff145826 v2.1b1
-b59a536ae1ef3774fd85c17f623e8926b7b6c095 v2.1b2
-d611276e9ad53b5d32d1e8065e1d811c32f7d96f v2.1c1
-ff065e674af6c9ab895bd9eff7d9e9039a376c7d v2.1c2
-020e95d8180d7943fe54701e1db0a7d7d87e2b1e v2.1
-08796a137f1ada2462f7a3177306df5f67a767e1 v2.2a3
-d054c29647f90bccb8345bd779bca1eecf2dd7f2 v2.3c1
-fce5c9e9abc722394cb2e909b7e2a39080d4448e v2.3c2
-92ca658fd420095b6284c9ce6e9082a80285ec9c v2.4a1
-055fc6955f3c6522bfeb7ed4c671c97d5baaaac2 v2.4a2
-186b72550e53533ef6175f6411f932c1298193d7 v2.4a3
-53cff04283855adf88ed0c0fd3698827ca843637 v2.4b1
-7e387a9dcc79954a77695adef8b593da35be1214 v2.4b2
-ff80d8bbef6e13426c8a85d7f9d837b8f8f89834 v2.4c1
-f31e18d313c7a4fc66914b2d27e130a0f72c0b69 v2.4
-cd3f783cd08a16781e236c0b9cb5717d1d995fa9 v3.0a1
-65e82140e281bf26f2e22eda05a7f9956c420f8b v3.0a2
-df15827f34881b9af0936350813ced5c123c8230 v3.0a3
-15f773f7300e372c56a21d59fe49ca26955a6477 v3.0a4
-e35935475153377d6727d64e6c52f72c3b84015b v3.0a5
-a335c4d643b1cfe14197a9ef195c9b2804f608fc v3.0b1
-16ec4bb14a68ea428acf09ebf0c92981da2646f3 v3.0b2
-509e30a7968e01be329ec121540b3e755fc4e566 v3.0b3
-507ede9c7f7f475dfafbd4a52c22d767d10a2bc0 v3.0rc1
-8fae465a39627b590385462e6095eb63af45240a v3.0rc2
-e83a60c69d53f5551a306e77a6d38e9b11485496 v3.0rc3
-bc1ce368986e45b1faf96f93995df46bcd75e7b8 v3.1a1
-ee430e5075db2adf8124e6b94916a89ca41d3171 v3.1a2
-b63020797f9678adaf4d2c3e26574a9eef2ef028 v3.1b1
-4353fd0843cb31b356adc50f93d220e2e7255ef2 v3.1rc1
-0b87e438e1b53e3f812cad963a7fdb65d198ba2f v3.1rc2
-a69a031ac1402dede8b1ef80096436bca6d371f3 v3.1
-35efb1054ec6ceca72017a587263cb6a9257340b v3.1.1rc1
-8b9c0f573ab29c41c6c5fdcca82a1fe0ff5355af v3.1.1
-149b8b87514d10416b598884db5f74651f625b38 v3.1.2rc1
-960efa327c5d9c18df995437b0ac550cb89c9f85 v3.1.2
-d18e9d71f369d8211f6ac87252c6d3211f9bd09f v3.1.3rc1
-a4f75773c0060cee38b0bb651a7aba6f56b0e996 v3.1.3
-32fcb9e94985cb19ce37ba9543f091c0dbe9d7dd v3.1.4rc1
-c918ec9f3a76d6afedfbb5d455004de880443a3d v3.1.4
-ee26aca3219cf4bb0b93352e83edcc9cb28c7802 v3.1.5rc1
-75db2bc69fc9a3e4801e94e3e19801cb096208d8 v3.1.5rc2
-7395330e495ec3316862ca1f6ce0aaf7bdf6785b v3.1.5
-b37b7834757492d009b99cf0ca4d42d2153d7fac v3.2a1
-56d4373cecb73c8b45126ba7b045b3c7b3f94b0b v3.2a2
-da012d9a2c23d144e399d2e01a55b8a83ad94573 v3.2a3
-d92a5b850f5e56808bedc01723906ed64c5e6e2e v3.2a4
-b635cea94195780c8716e236479af319bcc26253 v3.2b1
-e3af5f3a7904c0d5343ec9633ea66e7acfd23a66 v3.2b2
-865d5b24bf28ca41b536befc326407c03e74a4d5 v3.2rc1
-acf3e24dd0d0dfd1e20c907d696d3da965a8f56f v3.2rc2
-18c1f52896501c7ee13b038454a39acb45a87979 v3.2rc3
-a222a015e28d8ae9af3899258dc6c15c3d40add0 v3.2
-8ffac2337a3323323d02153ac919fd1483176652 v3.2.1b1
-cfa9364997c7f2e67b9cbb45c3a5fa3bba4e4999 v3.2.1rc1
-5df549718fb4841ff521fe051f6b54f290fad5d8 v3.2.1rc2
-ac1f7e5c05104d557d5acd922e95625ba5d1fe10 v3.2.1
-c860feaa348d663e598986894ee4680480577e15 v3.2.2rc1
-137e45f15c0bd262c9ad4c032d97425bc0589456 v3.2.2
-7085403daf439adb3f9e70ef13f6bedb1c447376 v3.2.3rc1
-428f05cb7277e1d42bb9dd8d1af6b6270ebc6112 v3.2.3rc2
-3d0686d90f55a78f96d9403da2c52dc2411419d0 v3.2.3
-b2cb7bc1edb8493c0a78f9331eae3e8fba6a881d v3.2.4rc1
-1e10bdeabe3de02f038a63c001911561ac1d13a7 v3.2.4
-cef745775b6583446572cffad704100983db2bea v3.2.5
-51382a5598ec96119cb84594572901c9c964dc3c v3.2.6rc1
-0bd5f4f14de965ca8e44c6e3965fee106176cfc4 v3.2.6
-f1a9a6505731714f0e157453ff850e3b71615c45 v3.3.0a1
-2f69db52d6de306cdaef0a0cc00cc823fb350b01 v3.3.0a2
-0b53b70a40a00013505eb35e3660057b62be77be v3.3.0a3
-7c51388a3aa7ce76a8541bbbdfc05d2d259a162c v3.3.0a4
-e15c554cd43eb23bc0a528a4e8741da9bbec9607 v3.3.0b1
-4972a8f1b2aa3d7cdd64dc96aa7fa112fe1ea343 v3.3.0b2
-8bb5c7bc46ba43804480f3e328e1fa956672c885 v3.3.0rc1
-88a0792e8ba3e4916b24c7e7a522c277d326d66e v3.3.0rc2
-c191d21cefafb3832c45570e84854e309aa62eaa v3.3.0rc3
-bd8afb90ebf28ba4edc901d4a235f75e7bbc79fd v3.3.0
-92c2cfb924055ce68c4f78f836dcfe688437ceb8 v3.3.1rc1
-d9893d13c6289aa03d33559ec67f97dcbf5c9e3c v3.3.1
-d047928ae3f6314a13b6137051315453d0ae89b6 v3.3.2
-fd53c500f8b80f54f3ecedec9da2e8c7e52a6888 v3.3.3rc1
-d32442c0e60dfbd71234e807d3d1dedd227495a9 v3.3.3rc2
-c3896275c0f61b2510a6c7e6c458a750359a91b8 v3.3.3
-fa92f5f940c6c0d839d7f0611e4b717606504a3c v3.3.4rc1
-7ff62415e4263c432c8acf6e424224209211eadb v3.3.4
-9ec811df548ed154a9bf9815383a916d6df31b98 v3.3.5rc1
-ca5635efe090f78806188ac2758f9948596aa8b2 v3.3.5rc2
-62cf4e77f78564714e7ea3d4bf1479ca1fbd0758 v3.3.5
-51317c9786f54267975abf2e9c502e6aaaa4a249 v3.3.6rc1
-971fec30da1fc5bf2b9fb28e09812a5127014211 v3.3.6
-46535f65e7f3bcdcf176f36d34bc1fed719ffd2b v3.4.0a1
-9265a2168e2cb2a84785d8717792acc661e6b692 v3.4.0a2
-dd9cdf90a5073510877e9dd5112f8e6cf20d5e89 v3.4.0a3
-e245b0d7209bb6d0e19316e1e2af1aa9c2139104 v3.4.0a4
-3405dc9a6afaa0a06dd1f6f182ec5c998dce6f5f v3.4.0b1
-ba32913eb13ec545a46dd0ce18035b6c416f0d78 v3.4.0b2
-a97ce3ecc96af79bd2e1ac66ce48d9138e0ca749 v3.4.0b3
-5e088cea8660677969113741c1313d570d977e02 v3.4.0rc1
-a300712ed38c9a242b736c44e806caea25a6dc05 v3.4.0rc2
-8a81cdab3e9d521daaef989fade94b16455fc3b8 v3.4.0rc3
-04f714765c13824c3bc2835d7b008908862e083a v3.4.0
-c67a19e11a7191baf30f313bf55e2e0b6c6f574e v3.4.1rc1
-c0e311e010fcb5bae8d87ca22051cd0845ea0ca0 v3.4.1
-8711a09513848cfc48c689d983495ee64f4668ca v3.4.2rc1
-ab2c023a9432f16652e89c404bbc84aa91bf55af v3.4.2
-69dd528ca6255a66c37cc5cf680e8357d108b036 v3.4.3rc1
-b4cbecbc0781e89a309d03b60a1f75f8499250e6 v3.4.3
-04f3f725896c6961212c3a12e8ac25be6958f4fa v3.4.4rc1
-737efcadf5a678b184e0fa431aae11276bf06648 v3.4.4
-3631bb4a2490292ebf81d3e947ae36da145da564 v3.4.5rc1
-619b61e505d0e2ccc8516b366e4ddd1971b46a6f v3.4.5
-e199a272ccdac5a8c073d4690f60c13e0b6d86b0 v3.4.6rc1
-b662f47769213f23325144b80782c05764d0f053 v3.4.6
-5d4b6a57d5fd7564bf73f3db0e46fe5eeb00bcd8 v3.5.0a1
-0337bd7ebcb6559d69679bc7025059ad1ce4f432 v3.5.0a2
-82656e28b5e5c4ae48d8dd8b5f0d7968908a82b6 v3.5.0a3
-413e0e0004f4f954331cb8122aa55fe208984955 v3.5.0a4
-071fefbb5e3db770c6c19fba9994699f121b1cea v3.5.0b1
-7a088af5615bf04024e9912068f4bd8f43ed3917 v3.5.0b2
-0035fcd9b9243ae52c2e830204fd9c1f7d528534 v3.5.0b3
-c0d64105463581f85d0e368e8d6e59b7fd8f12b1 v3.5.0b4
-1a58b1227501e046eee13d90f113417b60843301 v3.5.0rc1
-cc15d736d860303b9da90d43cd32db39bab048df v3.5.0rc2
-66ed52375df802f9d0a34480daaa8ce79fc41313 v3.5.0rc3
-2d033fedfa7f1e325fd14ccdaa9cb42155da206f v3.5.0rc4
-374f501f4567b7595f2ad7798aa09afa2456bb28 v3.5.0
-948ef16a69513ba1ff15c9d7d0b012b949df4c80 v3.5.1rc1
-37a07cee5969e6d3672583187a73cf636ff28e1b v3.5.1
-68feec6488b26327a85a634605dd28eca4daa5f1 v3.5.2rc1
-4def2a2901a5618ea45bcc8f2a1411ef33af18ad v3.5.2
-de530d7f21c0398bb2a2b67716e0638e5fadf727 v3.5.3rc1
-1880cb95a742cd001c67677de5c4efeab169416c v3.5.3
-5896da372fb044e38595fb74495de1e1e7c8fb3c v3.6.0a1
-37889342355223e2fc1438de3dc7ffcd625c60f7 v3.6.0a2
-f3edf13dc339b8942ae6b309771ab197dd8ce6fa v3.6.0a3
-017cf260936b444788c9b671d195b7bfd83dbd25 v3.6.0a4
-5b0ca4ed5e2f0669d76ece7ef975c544580f12b4 v3.6.0b1
-b9fadc7d1c3f9c3c77f32f35afbe1a1cc38070e6 v3.6.0b2
-8345e066c0ed713c3e510cbc8fafc1c38d6d306b v3.6.0b3
-18496abdb3d5c2730a659b747a89261b2219fecf v3.6.0b4
-29a273eee9a523ee178f6a66c4ac9d317c8fc84f v3.6.0rc1
-800a67f7806de45a7abd5273359e704bf147c079 v3.6.0rc2
-41df79263a11f2429d1dd0cfe12553de3dcb5508 v3.6.0