The open command should not have a comma in the arguments. Isnt there something nice and simple about read()ing and write()ing to a file rather than spawning another program, and parsing the output. In your script you could use this function to read the interface name into a variable: ethNamegetEthName() Finding the MAC Address Using Python The following Python function can be used to obtain the MAC address of your Raspberry Pi: def getMAC(interfaceeth0).
In some older iterations of Raspbian these names were based on the MAC address of the interface using what is known as predictable interface names.įor this reason I created a function to determine the name regardless of the scheme being used: def getEthName(). This will result in output similar to: eth0 Link encap:Ethernet HWaddr c7:35:ce:fd:8e:a1. You can find the interface names by using: ls sysclassnet The name will be one of the displayed sub-directories alongside lo. This means the Ethernet interface name is unique for every Pi. The Ethernet interface used to be called eth0 but in newer versions of Raspbian it may be enx where is the MAC address. There are a number of ways to identify them using the command line or using Python code.īelow are some quick examples you can use to find the MAC address.įrom the Command Line To find the MAC address from the command line you need to know the name of the interface. There is a separate MAC address for Ethernet and WiFi interfaces. The address is different for all Pis and can be used to identify your device. The Media Access Control address is a unique identifier given to all networked devices.
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