python / python/cpython

Document BytesIO buffer size

Open
#133,521 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

docs topic-IO
Dominant language
Python
Stars
77.2k
Forks
35.9k
PR merge metrics
PR metrics pending

Description

https://stackoverflow.com/questions/26827055/python-how-to-get-bytesio-allocated-memory-length

The length of the data stored in a BytesIO object can be accessed in several ways. The best way seems to be getbuffer().nbytes. But it's not documented here
https://docs.python.org/3/library/io.html#io.BytesIO

Only here, the gigantic built-in types page https://docs.python.org/3/library/stdtypes.html#memoryview.nbytes

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the BytesIO documentation page linked in the issue and compare its current text with the getbuffer().nbytes information on the memoryview page. Document how to obtain the length of data stored in a BytesIO object, then verify that the BytesIO documentation clearly covers this usage.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
documentation
Issue type
Documentation
Difficulty
1/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.