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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# SOFTWARE.

# IMPORTANT! Any files added here also need to be added to
# Python3Core.INDIRECT_CORE_FILES, because during bootstrap we pre-parse (but do
# not run!) all core files.

def __gr__(self, name, mode='r', closefd=True, opener=None):
    pass


# TODO(fa): This was formerly located in 'property.py' which has been intrinsified but seemingly other modules rely
#  on 'descriptor'. We should revisit that.
def _f(): pass
FunctionType = type(_f)
descriptor = type(FunctionType.__code__)


@__graalpython__.builtin
def input(module, prompt=None):
    import sys
    if(not hasattr(sys, "stdin")):
        raise RuntimeError('input(): lost sys.stdin')
    if(not hasattr(sys, "stdout")):
        raise RuntimeError('input(): lost sys.stdout')
    if(not hasattr(sys, "stderr")):
        raise RuntimeError('input(): lost sys.stderr')

    if prompt is not None:
        print(prompt, end="", flush=hasattr(sys.stdout, "flush"))

    result = []
    while True:
        ch = sys.stdin.read(1)
        if ch:
            if ch == "\n":
                break
            result.append(ch)
        else:
            if(len(result) == 0):
                raise EOFError('EOF when reading a line')
            break
    return "".join(result)


class filter(object):
    def __init__(self, predicateOrNone, iterable):
        self.predicateOrNone = predicateOrNone
        self.iterable = iter(iterable)

    def __iter__(self):
        return self

    def __next__(self):
        while True:
            item = next(self.iterable)
            if self.predicateOrNone is None:
                if item:
                    return item
            else:
                if self.predicateOrNone(item):
                    return item
