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[3.13] gh-128066: Properly handle history file writes for RO fs on PyREPL (gh-134380) by ambv · Pull Request #134386 · python/cpython · GitHub

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6 changes: 6 additions & 0 deletions Lib/site.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@
import _sitebuiltins
import io
import stat
import errno

# Prefixes for site-packages; add additional prefixes like /usr/local here
PREFIXES = [sys.prefix, sys.exec_prefix]
Expand Down Expand Up @@ -576,6 +577,11 @@ def write_history():
# home directory does not exist or is not writable
# https://bugs.python.org/issue19891
pass
except OSError:
if errno.EROFS:
pass # gh-128066: read-only file system
else:
raise

atexit.register(write_history)

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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Fixes an edge case where PyREPL improperly threw an error when Python is
invoked on a read only filesystem while trying to write history file
entries.

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