From 92a3363096e10ad6a5c4e944af898bd1186d806a Mon Sep 17 00:00:00 2001
From: Max Ryabinin <mryabinin0@gmail.com>
Date: Wed, 24 Aug 2022 18:45:17 +0300
Subject: Replace print_stderr with warnings.warn

---
 bitsandbytes/__main__.py         | 7 +++----
 bitsandbytes/cuda_setup/paths.py | 3 +--
 bitsandbytes/utils.py            | 5 -----
 3 files changed, 4 insertions(+), 11 deletions(-)

(limited to 'bitsandbytes')

diff --git a/bitsandbytes/__main__.py b/bitsandbytes/__main__.py
index 5f11875..175a30e 100644
--- a/bitsandbytes/__main__.py
+++ b/bitsandbytes/__main__.py
@@ -3,8 +3,9 @@
 # cli()
 import os
 import sys
-import torch
+from warnings import warn
 
+import torch
 
 HEADER_WIDTH = 60
 
@@ -32,8 +33,6 @@ print()
 from . import COMPILED_WITH_CUDA, PACKAGE_GITHUB_URL
 from .cuda_setup.main import get_compute_capabilities, get_cuda_lib_handle
 from .cuda_setup.env_vars import to_be_ignored
-from .utils import print_stderr
-
 
 print_header("POTENTIALLY LIBRARY-PATH-LIKE ENV VARS")
 for k, v in os.environ.items():
@@ -84,7 +83,7 @@ try:
 
 except ImportError:
     print()
-    print_stderr(
+    warn(
         f"WARNING: {__package__} is currently running as CPU-only!\n"
         "Therefore, 8-bit optimizers and GPU quantization are unavailable.\n\n"
         f"If you think that this is so erroneously,\nplease report an issue!"
diff --git a/bitsandbytes/cuda_setup/paths.py b/bitsandbytes/cuda_setup/paths.py
index 610665f..6f6425f 100644
--- a/bitsandbytes/cuda_setup/paths.py
+++ b/bitsandbytes/cuda_setup/paths.py
@@ -2,7 +2,6 @@ from pathlib import Path
 from typing import Set, Union
 from warnings import warn
 
-from ..utils import print_stderr
 from .env_vars import get_potentially_lib_path_containing_env_vars
 
 CUDA_RUNTIME_LIB: str = "libcudart.so"
@@ -18,7 +17,7 @@ def remove_non_existent_dirs(candidate_paths: Set[Path]) -> Set[Path]:
     }
 
     if non_existent_directories:
-        print_stderr(
+        warn(
             "WARNING: The following directories listed in your path were found to "
             f"be non-existent: {non_existent_directories}"
         )
diff --git a/bitsandbytes/utils.py b/bitsandbytes/utils.py
index 77bbd30..1cd90e3 100644
--- a/bitsandbytes/utils.py
+++ b/bitsandbytes/utils.py
@@ -1,6 +1,5 @@
 import shlex
 import subprocess
-import sys
 from typing import Tuple
 
 
@@ -22,7 +21,3 @@ def execute_and_return(command_string: str) -> Tuple[str, str]:
 
     std_out, std_err = execute_and_return_decoded_std_streams(command_string)
     return std_out, std_err
-
-
-def print_stderr(s: str) -> None:
-    print(s, file=sys.stderr)
-- 
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