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Fix: fileno error google colab (#729) #1156

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Merged
abetlen merged 1 commit into from
Feb 2, 2024
+8 −30
Merged

Fix: fileno error google colab (#729) #1156

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38 changes: 8 additions & 30 deletions llama_cpp/_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,9 @@
import sys
from typing import Any, Dict

# Avoid "LookupError: unknown encoding: ascii" when open() called in a destructor
outnull_file = open(os.devnull, "w")
errnull_file = open(os.devnull, "w")
class NullDevice():
def write(self, s):
pass

class suppress_stdout_stderr(object):
# NOTE: these must be "saved" here to avoid exceptions when using
Expand All @@ -21,41 +21,19 @@ def __init__(self, disable: bool = True):
def __enter__(self):
if self.disable:
return self

# Check if sys.stdout and sys.stderr have fileno method
if not hasattr(self.sys.stdout, 'fileno') or not hasattr(self.sys.stderr, 'fileno'):
return self # Return the instance without making changes

self.old_stdout_fileno_undup = self.sys.stdout.fileno()
self.old_stderr_fileno_undup = self.sys.stderr.fileno()

self.old_stdout_fileno = self.os.dup(self.old_stdout_fileno_undup)
self.old_stderr_fileno = self.os.dup(self.old_stderr_fileno_undup)

self.old_stdout = self.sys.stdout
self.old_stderr = self.sys.stderr

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 = outnull_file
self.sys.stderr = errnull_file
self.sys.stdout = NullDevice()
self.sys.stderr = NullDevice()
return self

def __exit__(self, *_):
if self.disable:
return

# Check if sys.stdout and sys.stderr have fileno method
if hasattr(self.sys.stdout, 'fileno') and hasattr(self.sys.stderr, 'fileno'):
self.sys.stdout = self.old_stdout
self.sys.stderr = self.old_stderr

self.os.dup2(self.old_stdout_fileno, self.old_stdout_fileno_undup)
self.os.dup2(self.old_stderr_fileno, self.old_stderr_fileno_undup)

self.os.close(self.old_stdout_fileno)
self.os.close(self.old_stderr_fileno)

self.sys.stdout = self.old_stdout
self.sys.stderr = self.old_stderr


class MetaSingleton(type):
Expand Down