fix version (#1532)

* fix version

Signed-off-by: jiqing-feng <[email protected]>

* fix setup version

Signed-off-by: jiqing-feng <[email protected]>

---------

Signed-off-by: jiqing-feng <[email protected]>

Author: jiqing-feng

setup.py

@@ -1,11 +1,19 @@
 from setuptools import find_packages, setup
 from setuptools.dist import Distribution
 
+VERSION = "1.0.0"
+
 
 # Tested with wheel v0.45.1
 class BinaryDistribution(Distribution):
     def has_ext_modules(self):
         return True
 
 
-setup(packages=find_packages(), distclass=BinaryDistribution)
+def write_version_file(version, filepath="bitsandbytes/_version.py"):
+    with open(filepath, "w") as f:
+        f.write(f'__version__ = "{version}"\n')
+    return version
+
+
+setup(packages=find_packages(), distclass=BinaryDistribution, version=write_version_file(VERSION))