Spaces:
Runtime error
Runtime error
File size: 3,198 Bytes
4a51346 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 |
"""Handle files using a thread pool executor."""
import asyncio
import sys
from types import coroutine
from io import (
FileIO,
TextIOBase,
BufferedReader,
BufferedWriter,
BufferedRandom,
BufferedIOBase,
)
from functools import partial, singledispatch
from .binary import (
AsyncBufferedIOBase,
AsyncBufferedReader,
AsyncFileIO,
AsyncIndirectBufferedIOBase,
AsyncIndirectBufferedReader,
AsyncIndirectFileIO,
)
from .text import AsyncTextIOWrapper, AsyncTextIndirectIOWrapper
from ..base import AiofilesContextManager
sync_open = open
__all__ = (
"open",
"stdin",
"stdout",
"stderr",
"stdin_bytes",
"stdout_bytes",
"stderr_bytes",
)
def open(
file,
mode="r",
buffering=-1,
encoding=None,
errors=None,
newline=None,
closefd=True,
opener=None,
*,
loop=None,
executor=None
):
return AiofilesContextManager(
_open(
file,
mode=mode,
buffering=buffering,
encoding=encoding,
errors=errors,
newline=newline,
closefd=closefd,
opener=opener,
loop=loop,
executor=executor,
)
)
@coroutine
def _open(
file,
mode="r",
buffering=-1,
encoding=None,
errors=None,
newline=None,
closefd=True,
opener=None,
*,
loop=None,
executor=None
):
"""Open an asyncio file."""
if loop is None:
loop = asyncio.get_running_loop()
cb = partial(
sync_open,
file,
mode=mode,
buffering=buffering,
encoding=encoding,
errors=errors,
newline=newline,
closefd=closefd,
opener=opener,
)
f = yield from loop.run_in_executor(executor, cb)
return wrap(f, loop=loop, executor=executor)
@singledispatch
def wrap(file, *, loop=None, executor=None):
raise TypeError("Unsupported io type: {}.".format(file))
@wrap.register(TextIOBase)
def _(file, *, loop=None, executor=None):
return AsyncTextIOWrapper(file, loop=loop, executor=executor)
@wrap.register(BufferedWriter)
@wrap.register(BufferedIOBase)
def _(file, *, loop=None, executor=None):
return AsyncBufferedIOBase(file, loop=loop, executor=executor)
@wrap.register(BufferedReader)
@wrap.register(BufferedRandom)
def _(file, *, loop=None, executor=None):
return AsyncBufferedReader(file, loop=loop, executor=executor)
@wrap.register(FileIO)
def _(file, *, loop=None, executor=None):
return AsyncFileIO(file, loop=loop, executor=executor)
stdin = AsyncTextIndirectIOWrapper('sys.stdin', None, None, indirect=lambda: sys.stdin)
stdout = AsyncTextIndirectIOWrapper('sys.stdout', None, None, indirect=lambda: sys.stdout)
stderr = AsyncTextIndirectIOWrapper('sys.stderr', None, None, indirect=lambda: sys.stderr)
stdin_bytes = AsyncIndirectBufferedIOBase('sys.stdin.buffer', None, None, indirect=lambda: sys.stdin.buffer)
stdout_bytes = AsyncIndirectBufferedIOBase('sys.stdout.buffer', None, None, indirect=lambda: sys.stdout.buffer)
stderr_bytes = AsyncIndirectBufferedIOBase('sys.stderr.buffer', None, None, indirect=lambda: sys.stderr.buffer)
|