diff --git a/.gitignore b/.gitignore
index f80e5c682..faf51669b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -378,3 +378,5 @@ gperftools
 
 # Rust
 rust/target
+
+python/src/*.so
\ No newline at end of file
diff --git a/include/ann_exception.h b/include/ann_exception.h
index 6b81373c1..55f069b0e 100644
--- a/include/ann_exception.h
+++ b/include/ann_exception.h
@@ -6,6 +6,7 @@
 #include <stdexcept>
 #include <system_error>
 #include "windows_customizations.h"
+#include <cstdint>
 
 #ifndef _WINDOWS
 #define __FUNCSIG__ __PRETTY_FUNCTION__
diff --git a/src/pq_flash_index.cpp b/src/pq_flash_index.cpp
index d9ad50617..6c004023d 100644
--- a/src/pq_flash_index.cpp
+++ b/src/pq_flash_index.cpp
@@ -1271,7 +1271,10 @@ void PQFlashIndex<T, LabelT>::cached_beam_search(const T *query1, const uint64_t
                                                  const uint32_t io_limit, const bool use_reorder_data,
                                                  QueryStats *stats)
 {
-
+    // printf("cached_beam_search\n");
+    // diskann::cout << "cached_beam_search" << std::endl;
+    // printf("cached_beam_search\n");
+    // diskann::cout << "cached_beam_search" << std::endl;
     uint64_t num_sector_per_nodes = DIV_ROUND_UP(_max_node_len, defaults::SECTOR_LEN);
     if (beam_width > num_sector_per_nodes * defaults::MAX_N_SECTOR_READS)
         throw ANNException("Beamwidth can not be higher than defaults::MAX_N_SECTOR_READS", -1, __FUNCSIG__, __FILE__,
@@ -1529,6 +1532,7 @@ void PQFlashIndex<T, LabelT>::cached_beam_search(const T *query1, const uint64_t
                     cmps++;
                     float dist = dist_scratch[m];
                     Neighbor nn(id, dist);
+                    // expand the neighbor here
                     retset.insert(nn);
                 }
             }