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Avoid BytesWarning when querying nvcc #2682

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Avoid BytesWarning when querying nvcc #2682

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71e73bd
Avoid BytesWarning when querying nvcc
Flamefire Oct 2, 2025
bc45c73
Merge branch 'NVIDIA:main' into patch-2
Flamefire Nov 1, 2025
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8 changes: 4 additions & 4 deletions python/cutlass_cppgen/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,11 +39,11 @@
def _cuda_install_path_from_nvcc() -> str:
import subprocess
# Attempt to detect CUDA_INSTALL_PATH based on location of NVCC
result = subprocess.run(['/usr/bin/which', 'nvcc'], capture_output=True)
result = subprocess.run(['/usr/bin/which', 'nvcc'], capture_output=True, text=True)
if result.returncode != 0:
raise Exception(f'Unable to find nvcc via `which` utility.')

cuda_install_path = result.stdout.decode('utf-8').split('/bin/nvcc')[0]
cuda_install_path = result.stdout.split('/bin/nvcc')[0]
if not os.path.isdir(cuda_install_path):
raise Exception(f'Environment variable "CUDA_INSTALL_PATH" is not defined, '
f'and default path of {cuda_install_path} does not exist.')
Expand All @@ -63,10 +63,10 @@ def nvcc_version():
import subprocess

# Attempt to get NVCC version
result = subprocess.run(['nvcc', '--version'], capture_output=True)
result = subprocess.run(['nvcc', '--version'], capture_output=True, text=True)
if result.returncode != 0:
raise Exception('Unable to run `nvcc --version')
_NVCC_VERSION = str(result.stdout).split(" release ")[-1].split(",")[0]
_NVCC_VERSION = result.stdout.split(" release ")[-1].split(",")[0]
return _NVCC_VERSION

_CUDA_INSTALL_PATH = None
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