Python 3.7 compatibility due to new requirements to re.sub repl.#149

Hello, small changes to pass tests in python 3.7. Before changes: ``` python3.7 test.py run all Traceback (most recent call last): File "/usr/local/lib/python3.7/sre_parse.py", line 1021, in parse_template this = chr(ESCAPES[this][1]) KeyError: '\\s' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "test.py", line 3, in <module> import sys, argparse, os, pythonwhois, json, datetime, codecs, time File "/home/yura/github/pythonwhois-py3/pythonwhois/__init__.py", line 1, in <module> from . import net, parse File "/home/yura/github/pythonwhois-py3/pythonwhois/parse.py", line 363, in <module> registrant_regexes = [preprocess_regex(regex) for regex in registrant_regexes] File "/home/yura/github/pythonwhois-py3/pythonwhois/parse.py", line 363, in <listcomp> registrant_regexes = [preprocess_regex(regex) for regex in registrant_regexes] File "/home/yura/github/pythonwhois-py3/pythonwhois/parse.py", line 205, in preprocess_regex regex = re.sub(r"\\s\*\(\?P<([^>]+)>\.\+\)", r"\s*(?P<\1>\S.*)", regex) File "/usr/local/lib/python3.7/re.py", line 192, in sub return _compile(pattern, flags).sub(repl, string, count) File "/usr/local/lib/python3.7/re.py", line 309, in _subx template = _compile_repl(template, pattern) File "/usr/local/lib/python3.7/re.py", line 300, in _compile_repl return sre_parse.parse_template(repl, pattern) File "/usr/local/lib/python3.7/sre_parse.py", line 1024, in parse_template raise s.error('bad escape %s' % this, len(this)) re.error: bad escape \s at position 0 ``` The problem is > repl can be a string or a function; if it is a string, any backslash escapes in it are processed. That is, \n is converted to a single newline character, \r is converted to a carriage return, and so forth. Unknown escapes of ASCII letters are reserved for future use and treated as errors. https://docs.python.org/3/library/re.html#re.sub After all tests pass: ``` python3.6 test.py run all [ 1/244] 0007games.com passed in normalized mode. [ 2/244] 0007games.com passed in default mode. [ 3/244] 0031fashion.com passed in normalized mode. [ 4/244] 0031fashion.com passed in default mode. [ 5/244] 123vitamine.com passed in normalized mode. [ 6/244] 123vitamine.com passed in default mode. [ 7/244] 2x4.ru passed in normalized mode. [ 8/244] 2x4.ru passed in default mode. [ 9/244] 365calendars.com passed in normalized mode. [ 10/244] 365calendars.com passed in default mode. [ 11/244] 9v.lt passed in normalized mode. [ 12/244] 9v.lt passed in default mode. [ 13/244] about.museum passed in normalized mode. [ 14/244] about.museum passed in default mode. [ 15/244] abouttubes.com passed in normalized mode. [ 16/244] abouttubes.com passed in default mode. [ 17/244] actu.org.au passed in normalized mode. [ 18/244] actu.org.au passed in default mode. [ 19/244] alibaba.jp passed in normalized mode. [ 20/244] alibaba.jp passed in default mode. [ 21/244] alliancefrançaise.nu passed in normalized mode. [ 22/244] alliancefrançaise.nu passed in default mode. [ 23/244] anink.com passed in normalized mode. [ 24/244] anink.com passed in default mode. [ 25/244] anonne.ws passed in normalized mode. [ 26/244] anonne.ws passed in default mode. [ 27/244] anonnews.org passed in normalized mode. [ 28/244] anonnews.org passed in default mode. [ 29/244] aol.com passed in normalized mode. [ 30/244] aol.com passed in default mode. [ 31/244] aridns.net.au passed in normalized mode. [ 32/244] aridns.net.au passed in default mode. [ 33/244] arkeysolutions.com passed in normalized mode. [ 34/244] arkeysolutions.com passed in default mode. [ 35/244] asiahotel.co.th passed in normalized mode. [ 36/244] asiahotel.co.th passed in default mode. [ 37/244] atheme.org passed in normalized mode. [ 38/244] atheme.org passed in default mode. [ 39/244] australia.gov.au passed in normalized mode. [ 40/244] australia.gov.au passed in default mode. [ 41/244] b.ro passed in normalized mode. [ 42/244] b.ro passed in default mode. [ 43/244] baligems.co.uk passed in normalized mode. [ 44/244] baligems.co.uk passed in default mode. [ 45/244] blackburn.ac.uk passed in normalized mode. [ 46/244] blackburn.ac.uk passed in default mode. [ 47/244] bristol.ac.uk passed in normalized mode. [ 48/244] bristol.ac.uk passed in default mode. [ 49/244] bts.co.th passed in normalized mode. [ 50/244] bts.co.th passed in default mode. [ 51/244] byme.at passed in normalized mode. [ 52/244] byme.at passed in default mode. [ 53/244] bäckerei.de passed in normalized mode. [ 54/244] bäckerei.de passed in default mode. [ 55/244] communigal.net passed in normalized mode. [ 56/244] communigal.net passed in default mode. [ 57/244] cryto.net passed in normalized mode. [ 58/244] cryto.net passed in default mode. [ 59/244] daemonrage.net passed in normalized mode. [ 60/244] daemonrage.net passed in default mode. [ 61/244] davicom.com.tw passed in normalized mode. [ 62/244] davicom.com.tw passed in default mode. [ 63/244] defunctkernel.me passed in normalized mode. [ 64/244] defunctkernel.me passed in default mode. [ 65/244] direct.gov.uk passed in normalized mode. [ 66/244] direct.gov.uk passed in default mode. [ 67/244] dns4pro.com passed in normalized mode. [ 68/244] dns4pro.com passed in default mode. [ 69/244] donuts.co passed in normalized mode. [ 70/244] donuts.co passed in default mode. [ 71/244] drpciv.biz passed in normalized mode. [ 72/244] drpciv.biz passed in default mode. [ 73/244] edis.at passed in normalized mode. [ 74/244] edis.at passed in default mode. [ 75/244] engine.com passed in normalized mode. [ 76/244] engine.com passed in default mode. [ 77/244] evalsed.info passed in normalized mode. [ 78/244] evalsed.info passed in default mode. [ 79/244] example.com passed in normalized mode. [ 80/244] example.com passed in default mode. [ 81/244] expopack.com.mx passed in normalized mode. [ 82/244] expopack.com.mx passed in default mode. [ 83/244] f63.net passed in normalized mode. [ 84/244] f63.net passed in default mode. [ 85/244] formule1fo.com passed in normalized mode. [ 86/244] formule1fo.com passed in default mode. [ 87/244] foxiepa.ws passed in normalized mode. [ 88/244] foxiepa.ws passed in default mode. [ 89/244] geko.dk passed in normalized mode. [ 90/244] geko.dk passed in default mode. [ 91/244] get.moe passed in normalized mode. [ 92/244] get.moe passed in default mode. [ 93/244] globallatedeals.com passed in normalized mode. [ 94/244] globallatedeals.com passed in default mode. [ 95/244] globaltravelgroup.com passed in normalized mode. [ 96/244] globaltravelgroup.com passed in default mode. [ 97/244] google.cn passed in normalized mode. [ 98/244] google.cn passed in default mode. [ 99/244] google.co.jp passed in normalized mode. [100/244] google.co.jp passed in default mode. [101/244] google.co.th passed in normalized mode. [102/244] google.co.th passed in default mode. [103/244] google.co.uk passed in normalized mode. [104/244] google.co.uk passed in default mode. [105/244] google.com passed in normalized mode. [106/244] google.com passed in default mode. [107/244] google.com.tw passed in normalized mode. [108/244] google.com.tw passed in default mode. [109/244] google.it passed in normalized mode. [110/244] google.it passed in default mode. [111/244] hl3.eu passed in normalized mode. [112/244] hl3.eu passed in default mode. [113/244] hopjb.eu passed in normalized mode. [114/244] hopjb.eu passed in default mode. [115/244] huskeh.net passed in normalized mode. [116/244] huskeh.net passed in default mode. [117/244] hyves.nl passed in normalized mode. [118/244] hyves.nl passed in default mode. [119/244] imperial.ac.uk passed in normalized mode. [120/244] imperial.ac.uk passed in default mode. [121/244] ireland.ie passed in normalized mode. [122/244] ireland.ie passed in default mode. [123/244] ismtgoxdeadyet.com passed in normalized mode. [124/244] ismtgoxdeadyet.com passed in default mode. [125/244] jizzbo.com passed in normalized mode. [126/244] jizzbo.com passed in default mode. [127/244] keybase.io passed in normalized mode. [128/244] keybase.io passed in default mode. [129/244] linux.conf.au passed in normalized mode. [130/244] linux.conf.au passed in default mode. [131/244] lowendbox.com passed in normalized mode. [132/244] lowendbox.com passed in default mode. [133/244] lowendshare.com passed in normalized mode. [134/244] lowendshare.com passed in default mode. [135/244] microsoft.com passed in normalized mode. [136/244] microsoft.com passed in default mode. [137/244] mu.oz.au passed in normalized mode. [138/244] mu.oz.au passed in default mode. [139/244] nepasituation.com passed in normalized mode. [140/244] nepasituation.com passed in default mode. [141/244] nic.buzz passed in normalized mode. [142/244] nic.buzz passed in default mode. [143/244] nic.ir passed in normalized mode. [144/244] nic.ir passed in default mode. [145/244] nic.ps passed in normalized mode. [146/244] nic.ps passed in default mode. [147/244] nic.pw passed in normalized mode. [148/244] nic.pw passed in default mode. [149/244] nic.ru passed in normalized mode. [150/244] nic.ru passed in default mode. [151/244] nominet.org.uk passed in normalized mode. [152/244] nominet.org.uk passed in default mode. [153/244] nsa.gov passed in normalized mode. [154/244] nsa.gov passed in default mode. [155/244] nttpc.co.jp passed in normalized mode. [156/244] nttpc.co.jp passed in default mode. [157/244] nytimes.com passed in normalized mode. [158/244] nytimes.com passed in default mode. [159/244] oli.id.au passed in normalized mode. [160/244] oli.id.au passed in default mode. [161/244] ovh.fr passed in normalized mode. [162/244] ovh.fr passed in default mode. [163/244] pcmups.com.tw passed in normalized mode. [164/244] pcmups.com.tw passed in default mode. [165/244] pixelmania.asia passed in normalized mode. [166/244] pixelmania.asia passed in default mode. [167/244] porn.com.tw passed in normalized mode. [168/244] porn.com.tw passed in default mode. [169/244] prq.se passed in normalized mode. [170/244] prq.se passed in default mode. [171/244] quadranet.com passed in normalized mode. [172/244] quadranet.com passed in default mode. [173/244] realtek.com.tw passed in normalized mode. [174/244] realtek.com.tw passed in default mode. [175/244] redd.it passed in normalized mode. [176/244] redd.it passed in default mode. [177/244] ricoh.co.th passed in normalized mode. [178/244] ricoh.co.th passed in default mode. [179/244] rs.co.th passed in normalized mode. [180/244] rs.co.th passed in default mode. [181/244] servequake.com passed in normalized mode. [182/244] servequake.com passed in default mode. [183/244] siamparagon.co.th passed in normalized mode. [184/244] siamparagon.co.th passed in default mode. [185/244] simpardaz.com passed in normalized mode. [186/244] simpardaz.com passed in default mode. [187/244] sina.com.cn passed in normalized mode. [188/244] sina.com.cn passed in default mode. [189/244] singularity.fr passed in normalized mode. [190/244] singularity.fr passed in default mode. [191/244] starbucks.co.th passed in normalized mode. [192/244] starbucks.co.th passed in default mode. [193/244] swisscom.ch passed in normalized mode. [194/244] swisscom.ch passed in default mode. [195/244] sydney.edu.au passed in normalized mode. [196/244] sydney.edu.au passed in default mode. [197/244] test.de passed in normalized mode. [198/244] test.de passed in default mode. [199/244] textfiles.com passed in normalized mode. [200/244] textfiles.com passed in default mode. [201/244] theregister.com passed in normalized mode. [202/244] theregister.com passed in default mode. [203/244] tip.it passed in normalized mode. [204/244] tip.it passed in default mode. [205/244] toyota.co.th passed in normalized mode. [206/244] toyota.co.th passed in default mode. [207/244] twitter.com passed in normalized mode. [208/244] twitter.com passed in default mode. [209/244] ufpa.br passed in normalized mode. [210/244] ufpa.br passed in default mode. [211/244] unwire.hk passed in normalized mode. [212/244] unwire.hk passed in default mode. [213/244] urlte.am passed in normalized mode. [214/244] urlte.am passed in default mode. [215/244] via.com.tw passed in normalized mode. [216/244] via.com.tw passed in default mode. [217/244] vulnweb.com passed in normalized mode. [218/244] vulnweb.com passed in default mode. [219/244] wa.us passed in normalized mode. [220/244] wa.us passed in default mode. [221/244] warwick.ac.uk passed in normalized mode. [222/244] warwick.ac.uk passed in default mode. [223/244] whirlpool.net.au passed in normalized mode. [224/244] whirlpool.net.au passed in default mode. [225/244] whois.com passed in normalized mode. [226/244] whois.com passed in default mode. [227/244] whois.us passed in normalized mode. [228/244] whois.us passed in default mode. [229/244] whoiser.ir passed in normalized mode. [230/244] whoiser.ir passed in default mode. [231/244] winamp.com passed in normalized mode. [232/244] winamp.com passed in default mode. [233/244] wosoccer.com passed in normalized mode. [234/244] wosoccer.com passed in default mode. [235/244] x.it passed in normalized mode. [236/244] x.it passed in default mode. [237/244] xboxmoments.com passed in normalized mode. [238/244] xboxmoments.com passed in default mode. [239/244] yahoo.com.tw passed in normalized mode. [240/244] yahoo.com.tw passed in default mode. [241/244] yahoo.it passed in normalized mode. [242/244] yahoo.it passed in default mode. [243/244] zem.org.uk passed in normalized mode. [244/244] zem.org.uk passed in default mode. Timing in default mode: 20ms avg, 0ms min, 76ms max Timing in normalized mode: 20ms avg, 0ms min, 76ms max All tests passed! ``` After this changes test on python2.7 and python3.6 also pass.