As the {{fname|rfm.send()}} only send bytes, the {{fname|msg}} is transformed into an array of bytes with {{bytes()}} . {{bytes()}} array can only contains ASCII < 127, any other character must be appropriately encoded! This is why the call to {{fname|bytes(msg , "utf-8")}} mentions the source string encoding (wich is [https://fr.wikipedia.org/wiki/UTF-8 UTF-8] nowadays). | As the {{fname|rfm.send()}} only send bytes, the {{fname|msg}} is transformed into an array of bytes with {{bytes()}} . {{bytes()}} array can only contains ASCII < 127, any other character must be appropriately encoded! This is why the call to {{fname|bytes(msg , "utf-8")}} mentions the source string encoding (wich is [https://fr.wikipedia.org/wiki/UTF-8 UTF-8] nowadays). |