change version code

faiss/python/setup.py

@@ -16,7 +16,7 @@ shutil.copytree("contrib", "faiss/contrib")
 shutil.copyfile("__init__.py", "faiss/__init__.py")
 shutil.copyfile("loader.py", "faiss/loader.py")
 shutil.copyfile("libfaiss_python_callbacks.so", "faiss/libfaiss_python_callbacks.so")
-
+shutil.copyfile("libfaiss.so", "faiss/libfaiss.so")
 ext = ".pyd" if platform.system() == 'Windows' else ".so"
 prefix = "Release/" * (platform.system() == 'Windows')
 
@@ -47,7 +47,7 @@ dtk_version = content.replace('.', '')
 print(dtk_version)
 cwd = os.path.dirname(os.path.abspath(__file__))
 ver_path = os.path.join(cwd, "faiss", "__init__.py")
-with open(ver_path, 'w') as f:
+with open(ver_path, 'a') as f:
     f.write("__version__ = '1.7.2'\n")
     version = '1.7.2' + '+das.dtk' + dtk_version
     f.write(f"__dcu_version__ = '{version}'\n")