westonpace commented on issue #34118:
URL: https://github.com/apache/arrow/issues/34118#issuecomment-1690228593
Hmm, I do not see this behavior.
```
(arrow-release-12-0-1) pace@pace-desktop:~$ ARROW_IO_THREADS=1
OMP_NUM_THREADS=1 python
Python 3.11.4 | packaged by conda-forge | (main, Jun 10 2023, 18:08:17) [GCC
12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from pyarrow._s3fs import initialize_s3
>>> initialize_s3(num_event_loop_threads=1)
>>> import pyarrow as pa
>>> pa.__version__
'12.0.1'
>>> import os
>>> os.getpid()
18795
```
```
pace@pace-desktop:~$ ps -eT -o "ppid,pid,tid,comm" | grep 18795
11208 18795 18795 python
11208 18795 18797 jemalloc_bg_thd
11208 18795 18800 AwsEventLoop 1
```
Is it possible that `ipython`'s initialization is importing `pyarrow.fs`
somewhere else?
> Also in 12.01 pyarrow because ensure being call in init.py in pyarrow.fs
User can not call pyarow.fs.initialize_s3.
I agree this is a concern. I believe #35575 is tracking this.
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