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failures. The issue is caused by the code checking socket status *after* checking if bytes are available. Bytes may have become available between the last byte available check and the socket status check. This causes us to incorrectly ignore the newly available bytes and return 0 to the caller, which in any blocking/timeout scenario tells the caller no more bytes will ever be available. This was introduced in commit 89b9f10 See also adafruit#151 as a fix for adafruit#135
# Conflicts: # adafruit_wiznet5k/adafruit_wiznet5k_socketpool.py
FoamyGuy
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Jan 23, 2026
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This change makes sense and looks good to me. I tested it successfully with the simpletest, httpserver, and aio_post examples from this repo with an Ethernet FeatherWing + Feather RP2350.
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Updating https://github.com/adafruit/Adafruit_CircuitPython_Wiznet5k to 7.4.1 from 7.3.1: > Merge pull request adafruit/Adafruit_CircuitPython_Wiznet5k#188 from FoamyGuy/pr_171_merge_main > Merge pull request adafruit/Adafruit_CircuitPython_Wiznet5k#178 from fasteddy516/match_core_sockets
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This PR supersedes #171. I tried to merge main and resolve conflicts in that branch, but library maintainers do not have access to push to the branch so I cannot update the PR.
Will close #171 in favor of this one which has main merged and is all up to date.