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one expression chatserver
main = lambda port: (lambda dt: (lambda mm: (lambda n: (map(lambda r: (lambda
rr: setattr(n, *rr) if (type(rr) is tuple and len(rr) == 2) else None)(r()),
[lambda: map(setattr, *zip(*[(n, m, __import__(m)) for m in mm.m.decode('ba'
'se64').split()])), lambda: map(n.s['signal.signal'], (n.s['signal.SIGINT'],
n.s['signal.SIGTERM']), [lambda s, f: (n.s['sys.exit']() if n.f else [n.sa(
mm.l[0], n.o)] and n.u('f', True) or n.fc(n.l))] * 2), lambda: setattr(mm,
'l', mm.l.decode('base64').split('~~~')), lambda: ('sw', n.s['types.Functio'
'nType'] (compile("try:\n\tv = n.select.select(n.so, n.w(), [])\nexcept n.s"
"elect.error, e:\n\tif e[0] != n.errno.EINTR: raise\nelse:\n\tn.u('sr', v)",
'', 'exec'), dict(n=n, OSError=OSError))),lambda: ('l', n.s['socket.socket']
(n.s['socket.AF_INET'], n.s['socket.SOCK_STREAM'])), lambda: n.s['l.bind']((
'', port)), lambda: n.s['l.listen'](5), lambda: ('ro', lambda: filter(lambda
s: s in n.nn, n.so)), lambda: n.update(si=(lambda o: o.__setitem__), di=(
lambda o: o.__delitem__), cr=n.s['re.compile'](mm.l[11]), nn={}, dp=lambda
s, d, c, l: n.dd.get(c, d)(s, l, c), dd=dict(me=lambda s, l, c: n.sa(mm.l[14
] % (n.nn[s], l)), quit=lambda s, l, c: n.c(s), who=lambda s, l, c: n.ws(s,
mm.l[1] + ', '.join(n.s['nn.values']())), help=lambda s, l, c: n.ws(s, mm.l[
2]), nick=lambda s, l, c: ((([n.sa(mm.l[3] % (n.nn[s], l))] and n.si(n.nn)(
s, l)) if n.nr.match(l) else n.ws(s, mm.l[4])) if l not in n.nn.values()
else n.ws(s, mm.l[7]))), so=(n.u('f', False) or [n.l]), ib=n.s['collections'
'.defaultdict'](list), ob=n.s['collections.defaultdict'](list), o=(lambda:
filter(lambda s: s is not n.l, n.so)), w=(lambda: filter(n.ob.__getitem__,
n.o())), ws=(lambda s, l: n.ob[s].append(l + '\r\n')), nr=n.s['re.compile'](
mm.l[12]), sa=(lambda d, f=n.ro: map(lambda s: n.ws(s, d), f())), fs=set(),
c=(lambda s: [n.sa(mm.l[13] % n.nn[s]) if s in n.nn and s not in n.fs else
None] and n.s['fs.add'](s)), fc=(lambda s: [s.close()] and (n.so.remove(s)
if s in n.so else None) or (n.fs.remove(s) if s in n.fs else None) or (n.di(
n.ib)(s) if s in n.ib else None) or (n.di(n.ob)(s) if s in n.ob else None)
or (n.di(n.nn)(s) if s in n.nn else None))), lambda: map(lambda f: map(
apply, [lambda: n.u('sr', ([], [], [])), lambda: n.sw(), lambda: map(apply,
[lambda *ss: map(lambda s: map(apply, [lambda: n.sa(mm.l[8]), lambda: n.so.
append(s.accept()[0]), lambda: n.ws(n.so[-1], mm.l[6])]) if s is n.l else
map(apply, [lambda: n.ib[s].append(s.recv(4096)) or (n.c(s) if n.ib[s][-1]
== '' else None)]), ss), lambda *ss: map(lambda s: (lambda d: (n.si(n.ob)(s,
[d[s.send(d):]]) or (n.si(n.ob)(s, []) if n.ob[s] == [''] else None)))(''.
join(n.ob[s])), ss), lambda *ss: None], n.sr), lambda: [n.di(v)(slice(None,
None)) for k, v in n.ob.items() if v and not filter(None, v)], lambda: n.u(
'sl', {}), lambda: map((lambda (k, v): n.si(n.sl)(k, ''.join(v).split('\r\n'
)) or n.si(n.ib)(k, [n.sl[k].pop()])), n.ib.items()), lambda: n.sl and map(
lambda (s, l): ((n.sa(mm.l[15] % (n.nn[s], l[1:] if l.startswith('//') else
l)) if not l.startswith('/') or l.startswith('//') else (n.dp(s, lambda s,
l, c: n.ws(s, mm.l[9] % c), *n.s['cr.match'](l).groups()))) if s in n.nn
else (((n.si(n.nn)(s, l) or [n.ws(s, mm.l[5])] and n.sa(mm.l[10] % l)) if n.
nr.match(l) else n.ws(s, mm.l[4])) if l not in n.nn.values() else n.ws(s,
mm.l[7]))), [(s, l.rstrip()) for s, ll in n.sl.items() for l in ll]),
lambda: n.f and map(lambda (s, b): n.fc(s) if not filter(None, b) else None,
n.ob.items()), lambda: map(lambda s: n.fc(s) if not filter(None, n.ob[s])
else None, list(n.fs))]), iter(lambda: bool(n.so), False)), lambda: n.s['l.'
'close']()])))(dt()))(dt(m='c3lzIHNpZ25hbCBzb2NrZXQgc2VsZWN0IGNvbGxlY3Rpb25'
'zIGVycm5vIHR5cGVzIGl0ZXJ0b29scyByZQ==', l='KioqIFNlcnZlciBnb2luZyBkb3duIX5'
'+fioqKiBDdXJyZW50bHkgY29ubmVjdGVkOiB+fn4qKiogQXZhaWxhYmxlIGNvbW1hbmRzOg0KK'
'ioqICAvaGVscCAtLSBnZXQgaGVscA0KKioqICAvcXVpdCAtLSBkaXNjb25uZWN0DQoqKiogIC9'
'tZSAtLSBwZXJmb3JtIGFuIGFjdGlvbg0KKioqICAvd2hvIC0tIGxpc3QgY29ubmVjdGVkIHVzZ'
'XJzDQoqKiogIC9uaWNrIC0tIGNoYW5nZSB5b3VyIG5pY2tuYW1lIHRvIHNvbWV0aGluZyBiZXR'
'0ZXJ+fn4qKiogJXMgaXMgbm93IGtub3duIGFzICVzLn5+fioqKiBUaGF0IG5pY2tuYW1lIGlzI'
'GludmFsaWQufn5+KioqIFR5cGUgIi9oZWxwIiBmb3IgaGVscC5+fn4qKiogSGVsbG8hIFdoYXQ'
'gaXMgeW91ciBuaWNrbmFtZT9+fn4qKiogVGhhdCBuaWNrbmFtZSBpcyBhbHJlYWR5IGluIHVzZ'
'S5+fn4qKiogSW5jb21pbmcgY29ubmVjdGlvbiF+fn4qKiogTm8gc3VjaCBjb21tYW5kOiAvJXN'
'+fn4qKiogJXMgaGFzIGpvaW5lZC5+fn5eLyhbQS16XSopXHMqKC4qKSR+fn5eW0EtejAtOV9dK'
'yR+fn4qKiogJXMgaGFzIGxlZnQufn5+KiAlcyAlc35+fjwlcz4gJXM=')))(type('', (dict,
), dict(__getattr__=lambda s, k: s[k], u=lambda s, *a: s.__setitem__(*a),
__setattr__=lambda s, k, v: s.__setitem__(k, v), s=property(lambda s: type(
'', (object,), dict(__getitem__=lambda ss, k: reduce(getattr, k.split('.'),
s)))()))))
@DTSCode

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commented Sep 1, 2015

is that you perl?

@impshum

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commented Feb 18, 2018

Your poor brain!

@miratcan

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commented Feb 19, 2018

Python

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