Current File : //proc/self/root/backups/router/usr/local/lib/python3.11/site-packages/duckdb/filesystem.py
from fsspec import filesystem, AbstractFileSystem
from fsspec.implementations.memory import MemoryFileSystem, MemoryFile
from .bytes_io_wrapper import BytesIOWrapper
from io import TextIOBase
def is_file_like(obj):
# We only care that we can read from the file
return hasattr(obj, "read") and hasattr(obj, "seek")
class ModifiedMemoryFileSystem(MemoryFileSystem):
protocol = ('DUCKDB_INTERNAL_OBJECTSTORE',)
# defer to the original implementation that doesn't hardcode the protocol
_strip_protocol = classmethod(AbstractFileSystem._strip_protocol.__func__)
def add_file(self, object, path):
if not is_file_like(object):
raise ValueError("Can not read from a non file-like object")
path = self._strip_protocol(path)
if isinstance(object, TextIOBase):
# Wrap this so that we can return a bytes object from 'read'
object = BytesIOWrapper(object)
self.store[path] = MemoryFile(self, path, object.read())
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