ImportError: No module named 'exceptions'

[marcocamma]

Hi,

I installed the module with pip3 and when trying to import it I get the following error:

/home/user/.local/lib/python3.5/site-packages/zaber_device/zaber_device.py in <module>()
      6 import platform
      7 import os
----> 8 from exceptions import Exception

thanks, marco

[peterpolidoro]

Hi. Sorry about that. I made some changes, can you please try it again now?

[marcocamma]

Thanks !
indeed I can now import it without problem ... it seems not compatible with the X-MCB1 controller I have. it is seen as ttyACM0 in my machine. I may have to keep using my ugly module (that I still have to improve):
here

[peterpolidoro]

What is incompatible about it? Is it because it uses the old Zaber binary format instead of their ASCII format? I wrote this library years ago and I would like to update it so it works with their newer products. I have not worked with their products since I wrote this, do they have a set of ASCII commands that work with all of their controllers?

[marcocamma]

I am using ASCII too but this is what I get:

   ...: 5200,debug=True)
port = /dev/ttyACM0
Initialization time = 2.0024795532226562

In [7]: z.get_position()
request attempt: 0
request [0, 60, 0, 0, 0, 0]
------------------------------------------------------------------
ReadError                        Traceback (most recent call last)
<ipython-input-7-06629e309cdf> in <module>()
----> 1 z.get_position()

/home/thzuser/.local/lib/python3.5/site-packages/zaber_device/zaber_device.py in get_position(self)
    644         '''
    645         actuator = None
--> 646         response = self._send_request_get_response(60,actuator)
    647         return response
    648 

/home/thzuser/.local/lib/python3.5/site-packages/zaber_device/zaber_device.py in _send_request_get_response(self, command, actuator, data)
    239                     self._debug_print('request', [ord(c) for c in request])
    240                     request_attempt += 1
--> 241                     response = self._serial_interface.write_read(request,use_readline=False,size=READ_SIZE)
    242                     response_array = [ord(c) for c in response]
    243                     response_str = str(response_array)

/home/thzuser/.local/lib/python3.5/site-packages/serial_interface/serial_interface.py in write_read(self, data, use_readline, check_write_freq, max_read_attempts, delay_write, match_chars, size)
    191             if bytes_written > 0:
    192                 time.sleep(self._write_read_delay)
--> 193                 response = self._read_with_retry(use_readline,max_read_attempts,match_chars,size)
    194                 self._debug_print('response:', response)
    195             else:

/home/thzuser/.local/lib/python3.5/site-packages/serial_interface/serial_interface.py in _read_with_retry(self, use_readline, max_read_attempts, match_chars, size)
    213             self._debug_print('no response -- retrying')
    214         if not response:
--> 215             raise ReadError("No response received.")
    216         else:
    217             return response

ReadError: 'No response received.'

I'll try to debug and have a look at your code in the next days.
thanks for your answer,
marco