Support Python 3

added modernisation + 1 deleted label

[2019-12-21 00:08] Validation started with lhcb-gaudi-head-py3#268
[2019-12-23 00:09] Validation started with lhcb-gaudi-head-py3#269
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[2020-01-06 00:07] Validation started with lhcb-gaudi-head-py3#271
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[2020-01-14 00:08] Validation started with lhcb-gaudi-head-py3#277
[2020-01-15 00:12] Validation started with lhcb-gaudi-head-py3#278
[2020-01-16 00:07] Validation started with lhcb-gaudi-head-py3#279
[2020-01-17 00:08] Validation started with lhcb-gaudi-head-py3#280
[2020-01-18 00:09] Validation started with lhcb-gaudi-head-py3#281
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[2020-02-12 00:10] Validation started with lhcb-gaudi-head-py3#299
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[2020-02-17 00:06] Validation started with lhcb-gaudi-head-py3#304
[2020-02-19 00:08] Validation started with lhcb-gaudi-head-py3#305
[2020-02-20 00:11] Validation started with lhcb-gaudi-head-py3#306
[2020-02-23 00:07] Validation started with lhcb-gaudi-head-py3#307
[2020-02-25 00:07] Validation started with lhcb-gaudi-head-py3#308
[2020-03-02 10:47] Validation started with lhcb-gaudi-head-py3#313
[2020-03-03 00:07] Automatic merge failed in lhcb-gaudi-head-py3#314
[2020-03-04 00:11] Validation started with lhcb-gaudi-head-py3#315
[2020-03-05 00:06] Validation started with lhcb-gaudi-head-py3#316
[2020-03-06 00:08] Validation started with lhcb-gaudi-head-py3#317
[2020-03-07 00:09] Validation started with lhcb-gaudi-head-py3#318
[2020-03-11 00:09] Validation started with lhcb-gaudi-head-py3#319
[2020-03-12 00:12] Validation started with lhcb-gaudi-head-py3#320
[2020-03-13 00:09] Validation started with lhcb-gaudi-head-py3#321
[2020-03-15 00:06] Validation started with lhcb-gaudi-head-py3#322
[2020-03-17 00:08] Validation started with lhcb-gaudi-head-py3#323
[2020-03-18 00:11] Validation started with lhcb-gaudi-head-py3#324
[2020-03-19 00:15] Validation started with lhcb-gaudi-head-py3#325
[2020-03-20 03:46] Validation started with lhcb-gaudi-head-py3#326
[2020-03-21 00:10] Automatic merge failed in lhcb-gaudi-head-py3#327
[2020-03-24 00:10] Automatic merge failed in lhcb-gaudi-head-py3#328
[2020-03-26 00:10] Validation started with lhcb-gaudi-head-py3#329
[2020-03-31 00:08] Validation started with lhcb-gaudi-head-py3#330
[2020-04-01 00:07] Validation started with lhcb-gaudi-head-py3#331
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[2020-04-07 00:13] Validation started with lhcb-gaudi-head-py3#333
[2020-04-08 01:20] Validation started with lhcb-gaudi-head-py3#334
[2020-04-09 00:07] Validation started with lhcb-gaudi-head-py3#335
[2020-04-10 00:10] Validation started with lhcb-gaudi-head-py3#336
[2020-04-11 00:10] Automatic merge failed in lhcb-gaudi-head-py3#337
[2020-04-15 00:08] Automatic merge failed in lhcb-gaudi-head-py3#338
[2020-04-17 00:07] Automatic merge failed in lhcb-gaudi-head-py3#339
[2020-04-18 00:16] Automatic merge failed in lhcb-gaudi-head-py3#340
[2020-04-21 00:08] Validation started with lhcb-gaudi-head-py3#341
[2020-04-22 00:12] Validation started with lhcb-gaudi-head-py3#342
[2020-04-23 00:12] Validation started with lhcb-gaudi-head-py3#343
[2020-04-24 00:15] Validation started with lhcb-gaudi-head-py3#344
[2020-04-25 00:14] Validation started with lhcb-gaudi-head-py3#345
[2020-04-28 00:10] Validation started with lhcb-gaudi-head-py3#346
[2020-04-29 00:15] Validation started with lhcb-gaudi-head-py3#347
[2020-04-30 00:11] Validation started with lhcb-gaudi-head-py3#348
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[2020-05-14 01:35] Validation started with lhcb-gaudi-head-py3#356
[2020-05-15 00:15] Validation started with lhcb-gaudi-head-py3#357
[2020-05-16 00:13] Validation started with lhcb-gaudi-head-py3#358
[2020-05-18 00:13] Validation started with lhcb-gaudi-head-py3#359
[2020-05-19 00:13] Validation started with lhcb-gaudi-head-py3#360
[2020-05-20 00:15] Validation started with lhcb-gaudi-head-py3#361
[2020-05-21 00:18] Validation started with lhcb-gaudi-head-py3#362
[2020-05-23 00:13] Validation started with lhcb-gaudi-head-py3#363
[2020-05-24 00:12] Validation started with lhcb-gaudi-head-py3#364
[2020-05-25 00:13] Validation started with lhcb-gaudi-head-py3#365
[2020-05-26 00:10] Validation started with lhcb-gaudi-head-py3#366
[2020-05-27 00:09] Validation started with lhcb-gaudi-head-py3#367
[2020-05-28 00:19] Validation started with lhcb-gaudi-head-py3#368
[2020-05-29 00:11] Validation started with lhcb-gaudi-head-py3#369
[2020-05-30 00:11] Validation started with lhcb-gaudi-head-py3#370
[2020-05-31 00:11] Validation started with lhcb-gaudi-head-py3#371
[2020-06-02 00:11] Validation started with lhcb-gaudi-head-py3#372
[2020-06-03 00:13] Validation started with lhcb-gaudi-head-py3#373
[2020-06-04 00:12] Validation started with lhcb-gaudi-head-py3#374
[2020-06-05 00:11] Validation started with lhcb-gaudi-head-py3#375
[2020-06-06 00:13] Validation started with lhcb-gaudi-head-py3#376
[2020-06-07 00:11] Validation started with lhcb-gaudi-head-py3#377
[2020-06-08 00:07] Validation started with lhcb-gaudi-head-py3#378
[2020-06-09 00:08] Validation started with lhcb-gaudi-head-py3#379
[2020-06-10 00:09] Validation started with lhcb-gaudi-head-py3#380
[2020-06-11 00:15] Validation started with lhcb-gaudi-head-py3#381
[2020-06-12 00:09] Validation started with lhcb-gaudi-head-py3#382
[2020-06-13 00:12] Validation started with lhcb-gaudi-head-py3#383
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[2020-06-15 00:10] Validation started with lhcb-gaudi-head-py3#385
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[2020-06-29 11:44] Validation started with lhcb-gaudi-head-py3#400
[2020-06-30 00:13] Validation started with lhcb-gaudi-head-py3#401
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[2020-07-08 16:37] Validation started with lhcb-gaudi-head-py3#409
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[2020-07-13 00:44] Validation started with lhcb-gaudi-head-py3#414
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[2020-07-16 00:27] Validation started with lhcb-gaudi-head-py3#417
[2020-07-17 00:13] Validation started with lhcb-gaudi-head-py3#418
[2020-07-18 00:13] Validation started with lhcb-gaudi-head-py3#419
[2020-07-19 00:10] Validation started with lhcb-gaudi-head-py3#420
[2020-07-20 09:53] Validation started with lhcb-gaudi-head-py3#421
[2020-07-21 00:40] Validation started with lhcb-gaudi-head-py3#422
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[2020-07-22 08:44] Validation started with lhcb-gaudi-head-py3#424

added 1 deleted label

added 210 commits

6f7f5ee1...cee29b68 - 208 commits from branch master
c46daba9 - Run stage 1 of futurize.
5109b569 - Run stage 2 of futurize.

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added 105 commits

5109b569...a0195cd2 - 103 commits from branch master
393468ad - Run stage 1 of futurize.
b277e1cb - Run stage 2 of futurize.

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@clemenci do you understand the error in today's python3 nightly?

  File "/cvmfs/sft.cern.ch/lcg/releases/LCG_96bpython3/Python/3.6.5/x86_64-centos7-gcc9-opt/lib/python3.6/dbm/__init__.py", line 94, in open
    return mod.open(file, flag, mode)
_gdbm.error: [Errno 11] Resource temporarily unavailable

See https://lhcb-nightlies.web.cern.ch/logs/build/nightly/lhcb-gaudi-head-py3/329/x86_64-centos7-gcc9-opt/Rec/

BTW I guess we should ask for a LCG_97python3 build?

That looks like an issue with the filesystem... it should be a transient problem.

LCG_97python3 should already be there.

added 92 commits

b277e1cb...7d5d2d0e - 90 commits from branch master
34f09c91 - Run stage 1 of futurize.
f67ae370 - Run stage 2 of futurize.

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added 345 commits

f67ae370...397010d6 - 343 commits from branch master
002bf7d2 - Merge remote branch 'master' into apearce-python-3
42272ff3 - Removed harmful "from builtins import str"

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added 1 commit

37b0ed86 - Fix formatting

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added 50 commits

37b0ed86...0c920e9d - 47 commits from branch master
9a85688b - Merge branch 'master' into apearce-python-3
29715b8a - Workaround for an issue with the use of list comprehesion in validators on Python 3
bf43fd56 - Make Rich configuration stable between Py2 and Py3

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