diff --git a/DMM_34401a.py b/DMM_34401a.py
index 4f90908..5cbef10 100644
--- a/DMM_34401a.py
+++ b/DMM_34401a.py
@@ -35,15 +35,15 @@ def DMM_close(self):
 def DMM_ID(self):
     print("Arrived here")
     self.write("*IDN?\n".encode())
-    print(self.readline().encode())
+    print(self.readline().decode())
     
 """
 Check if the connected DMM is the 34401A
 """
 def DMM_ID_CHECK(self):
     self.write("*IDN?\n".encode())
-    s = self.readline()
-    if s.find("34401A") == 1:
+    s = self.readline().decode()
+    if "34401A" in s:
         return 1
     else:
         return 0
@@ -79,9 +79,9 @@ def DMM_read_raw(self):
 """
 def DMM_read_float(self):
     self.write("READ?\n".encode())
-    result = self.readline()
+    result = self.readline().decode()
     regex = re.compile('[+-][0-9][.][0-9]*[Ee][+-][0-9][0-9]')
-    if re.findall(regex, result) >= 1:
+    if re.search(regex, result):
             return float(result)
     else:
         return False