Hi all, it's a long time that I'm using owfs/owserver to read a network of 1-wire sensors in a server room, with great satisfaction for it's stability and ease of use.
My main scripting language is python, and somehow I do not like the official python packages, so I decided to write my own implementation of the ownet protocol. If you are interested you can find my implementation on pypi https://pypi.python.org/pypi/pyownet or github https://github.com/miccoli/pyownet/ (The code should be pretty stable, I'm using it 24/7 in a production environment, but docs are scarce, therefore it is still marked as alpha development status.) While implementing the package, I found some problems and difficulties that I would like to share with you. 1) Null terminated strings. The payload in most messages has to be null-terminated. While this can be regarded as natural for the C programmer, it is somehow unusual from the python point of view, where '/' and '/\x00' are different strings. Maybe this should be made more clear in http://owfs.org/index.php?page=tcp-messages where I read Payload: data string. Either just a filename path (for read or directory, or a null terminated path with data to be written afterwards It should be Payload: null terminated data string... just to make clear that the null terminator has to be always present, even when no data follows the path. 2) Error codes / strings. Error messages associated with the error codes can be retrieved with "owserver --help=error" or read from '/settings/return_codes'. I use this error messages in the exceptions raised by my code, but there are some inconsistencies. a) when you try to access a non existent path, you get error 1 'Startup - command line parameters invalid' while it should be 2 'legacy - No such entity' b) all owserver/ownet error messages start with 'legacy - '... why? Shouldn't this be 'owserver - ...' or 'ownet - ..." 3) Server version I was not able to find any way to determine the owserver version from a client: couldn't be useful to add a '/settings/version' node to owfs? Bye and compliments to all for the excellent work Stefano
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