pokemaster7 opened a new issue #9104:
URL: https://github.com/apache/arrow/issues/9104
Is it possible to embed a feather file in another file (with known
offset/length) and read the feather portion in a correct and performant way?
Here is a naive idea of what I'm trying to do, though it throws an error for
some reason:
``` python
import pandas as pd
import numpy as np
import os
df = pd.DataFrame(np.random.randint(0,100,size=(15, 4)),
columns=list('ABCD'))
pth = "TMP"
with open(pth, "wb") as fh:
fh.write(b"\x01") # custom header, one byte
df.to_feather(fh)
with open(pth, "rb") as gh:
gh.read(1) # read header
print(pd.read_feather(gh)) # throws 'pyarrow.lib.ArrowInvalid: Not a
Feather V1 or Arrow IPC file'
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