Re: [Flashforth-devel] ff-shell3.py question

[Mark E. <mar...@gm...>]

thanks Mikael,

well… so after putting some debug prints in the code i found out the “No such file…” error message was due to the fact that its trying to find this file that did not exist and had nothing to do with the usb serial port !

  histfn = os.path.join(os.path.expanduser("~"), ".ff.history")

so once i ’touched’ ~/.ff.history  it ran until I hit this snag

local variable 'e' referenced before assignment

which… ‘e’ is used for the “try…except” ’s  and not sure why python is complaining about it since its always something like 

except Exception as e:  kind of thing

weird

mark

> On Jul 5, 2024, at 10:16 PM, Mikael Nordman <mik...@fl...> wrote:
> 
> So I added the close() and open() to serial_open(config) and it works just fine on linux, maybe then also on OSX.
> Like this:
> 
>  try:
>    config.ser = serial.Serial(config.port, config.rate, timeout=0.5, writeTimeout=1.0, rtscts=config.hw, xonxoff=config.sw)
>    config.ser.close()
>    config.ser.open()
> 
> Does that help ?
> 
> Mikael
> 
> On 2024-07-06 02:50, Mark Ennamorato wrote:
>> Hi sorry..somewhat frustrated at the moment im sure there is something dumb i am doing / not doing but..
>> I *cannot* get the ff-shell3.py shell working at all .. M1 Mac, python 3.9.0
>> USB serial on /dev/tty.usbmodem13201
>> I changed tried running the ff-shell3.py with ‘python3 ff-shell3.py /dev/tty.usbmodem13201’ and get the dreaded “No such file or directory: /dev/tty.usbmodem13201’  even though I can connect to it with screen no issues.
>> So them I was looking at the code and see its got a serial port object “class Config(object)” and it so i changed default serial port to /dev/tty.usbmodem13201’ in it but still same issue.
>> hmm…. this should not be so difficult.
>> so i played with some simple python code inside the repl. just using see = serial.Serial(PORT, BAUD) using same port /dev/tty.usbmodem13201 and then ser.open() and I get “serial port is already open” .. so i do ser.close() first them ser.open() and it works, it sees my serial port just fine.
>> so why isn’t the ff-shell3.py seeing my serial port ??
>> TIA
>> Mark
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> 
> -- 
> --
> Mikael
> 
> 
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