add function

handle.py

@@ -5,6 +5,24 @@ import pika
 import requests
 
 
+def is_number(s):
+    """check if the input is number"""
+    if s.lower() == "nan":
+        return False
+    try:
+        float(s)
+        return True
+    except ValueError:
+        pass
+    try:
+        import unicodedata
+        unicodedata.numeric(s)
+        return True
+    except (TypeError, ValueError):
+        pass
+    return False
+
+
 class Producer:
     """init rabbitmq connection and push message"""
     def __init__(self, config: dict):