Update the query_by_arch function in API to be compatiable with the submission version of NAS-Bench-201

lib/models/cell_searchs/genotypes.py

@@ -4,7 +4,6 @@
 from copy import deepcopy
 
 
-
 def get_combination(space, num):
   combs = []
   for i in range(num):
@@ -19,7 +18,6 @@ def get_combination(space, num):
           new_combs.append( xstring )
       combs = new_combs
   return combs
-  
 
 
 class Structure:

lib/nas_201_api/api_201.py

@@ -123,7 +123,7 @@ class NASBench201API(NASBenchMetaAPI):
     """
     if self.verbose:
       print('Call query_info_str_by_arch with arch={:} and hp={:}'.format(arch, hp))
-    self._query_info_str_by_arch(arch, hp, print_information)
+    return self._query_info_str_by_arch(arch, hp, print_information)
 
   # obtain the metric for the `index`-th architecture
   # `dataset` indicates the dataset: