src/db_utils/frequency_scripts/create_n_fill_exon_frequency_file.py: modification of get_freq_table

src/db_utils/frequency_scripts/create_n_fill_exon_frequency_file.py

@@ -99,10 +99,10 @@ def get_freq_table(ps: int, bed_file: Path, mutli_fnc: Callable,
         for line in inbed:
             arg = [line]
             processes.append(pool.apply_async(mutli_fnc, arg))
-    my_res = []
     pbar = tqdm(processes, desc=f'Processing {bed_file.name}')
-    for proc in pbar:
-        my_res.append(proc.get(timeout=None))
+    my_res = [proc.get(timeout=None) for proc in pbar]
+    pool.close()
+    pool.join()
     df = pd.DataFrame(my_res)
     df = df.melt(id_vars=["id", 'length'], var_name="ft",
                  value_name='frequency')