add single quotes

Author: rushabh-v

pandas/core/arrays/integer.py

@@ -197,7 +197,7 @@ def coerce_to_array(values, dtype, mask=None, copy=False):
         return values, mask
 
     values = np.asarray(values, dtype=getattr(values, "dtype", object))
-    if copy and hasattr(values, dtype):
+    if copy and hasattr(values, 'dtype'):
         values = values.copy()
 
     if is_object_dtype(values):