PyTorch setup.py

pytorch-master\setup.py

Partly

# Use copies instead of symbolic files.
    # Windows has very poor support for them.
    sym_files = ['tools/shared/cwrap_common.py', 'tools/shared/_utils_internal.py']
    orig_files = ['aten/src/ATen/common_with_cwrap.py', 'torch/_utils_internal.py']
    for sym_file, orig_file in zip(sym_files, orig_files):
        same = False
        if os.path.exists(sym_file):
            if filecmp.cmp(sym_file, orig_file):
                same = True
            else:
                os.remove(sym_file)
        if not same:
            shutil.copyfile(orig_file, sym_file)

################################################################################
# Building dependent libraries
################################################################################

# the list of runtime dependencies required by this built package
install_requires = []
......