memory leak problem

[pokerc]

When i try to read the two orc file, and i found the memory of the first reader have not been released. I found no del() in the Reader. How can i release the memory.
`
import os
import sys
import pyorc
from memory_profiler import profile
import gc

@Profile
def main():
fr = open("000748_0", "rb")
r = pyorc.reader
reader = r.Reader(fr)
for i in range(100):
pass
a = reader.read(1000)
b = reader.read(20000)
c = reader.read(10000)
del reader
del r
del a,b,c
fr.close()
gc.collect()
fr = open("001751_0","rb")
r = pyorc.reader
reader = r.Reader(fr)
cnt = reader.len()
for i in range(cnt):
a = reader.next()
c = [1] * (10 ** 6)

if name == 'main':
main()`

[noirello]

Hello, thank you for reporting it.

I've looked into it, and found an unnecessary pybind11:object release call that created dangling/never decremented bytes objects during reading the ORC file. Creating a Reader object includes reading the metadata from the file, thus the faulty function was invoked during the Reader's initialisation.

I pushed the fix commit to upstream.