Antti Haapala <[email protected]> added the comment:
Another test case:
import tempfile
import io
import json
with tempfile.SpooledTemporaryFile(max_size=2**20) as f:
tf = io.TextIOWrapper(f, encoding='utf-8')
json.dump({}, fp=tf)
I was writing json to a file-like object that I need to read in as binary (to
upload to S3). Originally the code used BytesIO and I thought it would be wise
to actually spool this to disk as I was operating with possible limited RAM...
except that of course it didn't work.
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nosy: +ztane
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<https://bugs.python.org/issue26175>
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