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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2021 Detlev Offenbach <detlev@die-offenbachs.de> |
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4 # |
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5 |
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6 """ |
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7 Module implementing an enum defining the supported MQTT protocol versions. |
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8 """ |
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9 |
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10 import enum |
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11 |
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12 try: |
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13 import paho.mqtt.client as mqtt |
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14 |
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15 class MqttProtocols(enum.IntEnum): |
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16 """ |
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17 Class defining the supported MQTT protocol versions. |
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18 """ |
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19 MQTTv31 = mqtt.MQTTv31 |
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20 MQTTv311 = mqtt.MQTTv311 |
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21 MQTTv5 = mqtt.MQTTv5 |
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22 except ImportError: |
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23 # define the enum with known values |
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24 class MqttProtocols(enum.IntEnum): |
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25 """ |
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26 Class defining the supported MQTT protocol versions. |
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27 """ |
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28 MQTTv31 = 3 |
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29 MQTTv311 = 4 |
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30 MQTTv5 = 5 |