pitrou commented on code in PR #38375:
URL: https://github.com/apache/arrow/pull/38375#discussion_r1370386844
##########
python/pyarrow/fs.py:
##########
@@ -54,13 +54,12 @@
from pyarrow._s3fs import ( # noqa
AwsDefaultS3RetryStrategy, AwsStandardS3RetryStrategy,
S3FileSystem, S3LogLevel, S3RetryStrategy, ensure_s3_initialized,
- finalize_s3, initialize_s3, resolve_s3_region)
+ finalize_s3, ensure_s3_finalized, initialize_s3, resolve_s3_region)
except ImportError:
_not_imported.append("S3FileSystem")
else:
- ensure_s3_initialized()
import atexit
Review Comment:
```suggestion
# GH-38364: we don't initialize S3 eagerly as that could lead
# to crashes at shutdown even when S3 isn't used.
# Instead, S3 is initialized lazily using `ensure_s3_initialized`
# in assorted places.
import atexit
```
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