Cleanup pylint errors

tinytuya/BulbDevice.py

@@ -182,7 +182,7 @@ def _hexvalue_to_rgb(hexvalue, bulb="A"):
             r = int(hexvalue[0:2], 16)
             g = int(hexvalue[2:4], 16)
             b = int(hexvalue[4:6], 16)
-        if bulb == "B":
+        elif bulb == "B":
             # hexvalue is in hsv
             h = float(int(hexvalue[0:4], 16) / 360.0)
             s = float(int(hexvalue[4:8], 16) / 1000.0)
@@ -191,6 +191,9 @@ def _hexvalue_to_rgb(hexvalue, bulb="A"):
             r = int(rgb[0] * 255)
             g = int(rgb[1] * 255)
             b = int(rgb[2] * 255)
+        else:
+            # should we raise an error instead?
+            r = g = b = 0
 
         return (r, g, b)
 

tinytuya/core.py

@@ -89,7 +89,7 @@
     pass
 
 for clib in ('pyca/cryptography', 'PyCryptodomex', 'PyCrypto', 'pyaes'):
-    Crypto = AES = CRYPTOLIB = None
+    Crypto = Crypto_modes = AES = CRYPTOLIB = None
     try:
         if clib == 'pyca/cryptography': # https://cryptography.io/en/latest/
             from cryptography import __version__ as Crypto_version
@@ -524,6 +524,7 @@ def unpack_message(data, hmac_key=None, header=None, no_retcode=False):
     retcode = 0 if not retcode_len else struct.unpack(MESSAGE_RETCODE_FMT, data[header_len:header_len+retcode_len])[0]
     payload = data[header_len+retcode_len:msg_len]
     crc, suffix = struct.unpack(end_fmt, payload[-end_len:])
+    crc_good = False
     payload = payload[:-end_len]
 
     if header.prefix == PREFIX_55AA_VALUE: