Fix attribute not exist error

Author: MGAMZ

kilosort/io.py

@@ -651,7 +651,7 @@ def __init__(self, filename, n_chan_bin: int, fs: int = 30000,
         a, b = self._get_batch_edges(self.n_batches_raw-1)
         batch_size = b - a - self.nt
         if batch_size < self.nt:
-            self.n_batches -= 1
+            self.n_batches_raw -= 1
             self.imax -= batch_size
 
         self.set_downsampling(batch_downsampling)