Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)
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109
Dependencies/Python/Lib/asyncio/coroutines.py
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109
Dependencies/Python/Lib/asyncio/coroutines.py
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__all__ = 'iscoroutinefunction', 'iscoroutine'
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import collections.abc
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import inspect
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import os
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import sys
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import types
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def _is_debug_mode():
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# See: https://docs.python.org/3/library/asyncio-dev.html#asyncio-debug-mode.
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return sys.flags.dev_mode or (not sys.flags.ignore_environment and
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bool(os.environ.get('PYTHONASYNCIODEBUG')))
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# A marker for iscoroutinefunction.
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_is_coroutine = object()
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def iscoroutinefunction(func):
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"""Return True if func is a decorated coroutine function."""
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return (inspect.iscoroutinefunction(func) or
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getattr(func, '_is_coroutine', None) is _is_coroutine)
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# Prioritize native coroutine check to speed-up
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# asyncio.iscoroutine.
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_COROUTINE_TYPES = (types.CoroutineType, collections.abc.Coroutine)
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_iscoroutine_typecache = set()
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def iscoroutine(obj):
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"""Return True if obj is a coroutine object."""
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if type(obj) in _iscoroutine_typecache:
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return True
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if isinstance(obj, _COROUTINE_TYPES):
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# Just in case we don't want to cache more than 100
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# positive types. That shouldn't ever happen, unless
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# someone stressing the system on purpose.
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if len(_iscoroutine_typecache) < 100:
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_iscoroutine_typecache.add(type(obj))
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return True
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else:
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return False
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def _format_coroutine(coro):
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assert iscoroutine(coro)
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def get_name(coro):
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# Coroutines compiled with Cython sometimes don't have
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# proper __qualname__ or __name__. While that is a bug
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# in Cython, asyncio shouldn't crash with an AttributeError
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# in its __repr__ functions.
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if hasattr(coro, '__qualname__') and coro.__qualname__:
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coro_name = coro.__qualname__
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elif hasattr(coro, '__name__') and coro.__name__:
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coro_name = coro.__name__
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else:
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# Stop masking Cython bugs, expose them in a friendly way.
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coro_name = f'<{type(coro).__name__} without __name__>'
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return f'{coro_name}()'
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def is_running(coro):
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try:
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return coro.cr_running
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except AttributeError:
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try:
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return coro.gi_running
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except AttributeError:
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return False
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coro_code = None
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if hasattr(coro, 'cr_code') and coro.cr_code:
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coro_code = coro.cr_code
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elif hasattr(coro, 'gi_code') and coro.gi_code:
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coro_code = coro.gi_code
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coro_name = get_name(coro)
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if not coro_code:
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# Built-in types might not have __qualname__ or __name__.
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if is_running(coro):
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return f'{coro_name} running'
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else:
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return coro_name
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coro_frame = None
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if hasattr(coro, 'gi_frame') and coro.gi_frame:
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coro_frame = coro.gi_frame
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elif hasattr(coro, 'cr_frame') and coro.cr_frame:
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coro_frame = coro.cr_frame
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# If Cython's coroutine has a fake code object without proper
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# co_filename -- expose that.
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filename = coro_code.co_filename or '<empty co_filename>'
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lineno = 0
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if coro_frame is not None:
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lineno = coro_frame.f_lineno
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coro_repr = f'{coro_name} running at {filename}:{lineno}'
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else:
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lineno = coro_code.co_firstlineno
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coro_repr = f'{coro_name} done, defined at {filename}:{lineno}'
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return coro_repr
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