Read encoder information Python2.7 and Python3.3 version differences and resolution, one subscription multiple calls to callback resolution

Source: Internet
Author: User

Python3.3 returns encoder information in byte type, b ' ... ', using byte type to find encoder data

Python2.7 returns the encoder information as a string type ' ... ', using a string to find the encoder data

You can use the type to detect the function type (...). ) to determine the data type of the Read encoder information:

One subscription calls callback multiple times: Rospy.spin () is used at the end of a subscription function, but later portions of the program are not executed, so you can put the part you need to perform in the callback function.

Read encoder information Python2.7 and Python3.3 version differences and resolution, one subscription multiple calls to callback resolution

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