baalajimaestro/llama.cpp
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Avoid "LookupError: unknown encoding: ascii" when open() called in a destructor (#1012)

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The existing code often causes "LookupError: unknown encoding: ascii" when open() called in a destructor. Saving open in self.open is not enough to avoid this. Instead, we can avoid reopening /dev/null every time by doing it once when the module is loaded.
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yieldthought 2024-01-15 16:52:10 +01:00 committed by GitHub
parent 1eaace8ea3
commit 7eff42c239
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1 changed files with 9 additions and 11 deletions
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20
llama_cpp/_utils.py
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@ -1,11 +1,15 @@
import os
import sys
import sys, traceback
# Avoid "LookupError: unknown encoding: ascii" when open() called in a destructor
outnull_file = open(os.devnull, "w")
errnull_file = open(os.devnull, "w")
class suppress_stdout_stderr(object):
# NOTE: these must be "saved" here to avoid exceptions when using
# this context manager inside of a __del__ method
open = open
sys = sys
os = os
@ -21,9 +25,6 @@ class suppress_stdout_stderr(object):
if not hasattr(self.sys.stdout, 'fileno') or not hasattr(self.sys.stderr, 'fileno'):
return self # Return the instance without making changes
self.outnull_file = self.open(self.os.devnull, "w")
self.errnull_file = self.open(self.os.devnull, "w")
self.old_stdout_fileno_undup = self.sys.stdout.fileno()
self.old_stderr_fileno_undup = self.sys.stderr.fileno()
@ -33,11 +34,11 @@ class suppress_stdout_stderr(object):
self.old_stdout = self.sys.stdout
self.old_stderr = self.sys.stderr
self.os.dup2(self.outnull_file.fileno(), self.old_stdout_fileno_undup)
self.os.dup2(self.errnull_file.fileno(), self.old_stderr_fileno_undup)
self.os.dup2(outnull_file.fileno(), self.old_stdout_fileno_undup)
self.os.dup2(errnull_file.fileno(), self.old_stderr_fileno_undup)
self.sys.stdout = self.outnull_file
self.sys.stderr = self.errnull_file
self.sys.stdout = outnull_file
self.sys.stderr = errnull_file
return self
def __exit__(self, *_):
@ -54,6 +55,3 @@ class suppress_stdout_stderr(object):
self.os.close(self.old_stdout_fileno)
self.os.close(self.old_stderr_fileno)
self.outnull_file.close()
self.errnull_file.close()