Asynchronous file I/O support¶
AnyIO provides asynchronous wrappers for blocking file operations. These wrappers run blocking operations in worker threads.
Example:
from anyio import open_file, run
async def main():
async with await open_file('/some/path/somewhere') as f:
contents = await f.read()
print(contents)
run(main)
The wrappers also support asynchronous iteration of the file line by line, just as the standard file objects support synchronous iteration:
from anyio import open_file, run
async def main():
async with await open_file('/some/path/somewhere') as f:
async for line in f:
print(line, end='')
run(main)