ImportError: No module named serial

[vigilancewx]

Hi

I can run the Weewx software in simulator mode and it appears to be running ok

 

when I select vantage and plug the vantage in to the raspberry pi  USB socket  the syslog generates the following

 

 

Nov 13 19:15:41 raspberrypi weewx[2322]:     ****  Exiting.

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Initializing weewx version 2.5.0

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Using Python 2.7.3 (default, Jan 13 2013, 11:20:46) #012[GCC 4.6.3]

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Using configuration file /home/weewx/weewx.conf

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Loading station type Vantage (weewx.drivers.vantage)

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Unable to open WX station hardware: No module named serial

Nov 13 19:29:54 raspberrypi weewx[2355]: wxengine: Caught unrecoverable exception in wxengine:

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****  No module named serial

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****  Traceback (most recent call last):

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/wxengine.py", line 886, in main

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      engine = EngineClass(config_dict)

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/wxengine.py", line 64, in __init__

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      self.setupStation(config_dict)

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/wxengine.py", line 96, in setupStation

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      self.console = loader_function(config_dict, self)

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 31, in loader

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      service = VantageService(engine, config_dict)

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 1413, in __init__

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      Vantage.__init__(self, **config_dict['Vantage'])

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 390, in __init__

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      self.port.openPort()

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 217, in openPort

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****      import serial

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****  ImportError: No module named serial

Nov 13 19:29:54 raspberrypi weewx[2355]:     ****  Exiting.

 

 

If I remove the usb cable and replace it the syslog generates and error on ttyUSB0

Nov 13 19:43:26 rasberrypi kernel: [2095.065466] usb 1-1,2: FTDI USB Serial Device converter now attached to ttyUSB0

 

 

and I have ttyUSB0 selected under the weewx confg file and "Vantage" selected

 

any ideas

 

thanks for any help

 

[Thomas Keffer]

From the log, it looks like you used the setup.py install method. Take a second look at the instructions: did you install python-serial?

-tk

--
You received this message because you are subscribed to the Google Groups "Weewx user's group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

[vigilancewx]

Hi Tom

 

Thanks for the quick reply

 

I used sudo apt-get install python-usb

 

the install guide says

required if hardware is serial or USB

sudo apt-get install python-serial

sudo apt-get install python-usb

 

as I am only using a usb connection I only installed the usb option

 

do I need to install both

sudo apt-get install python-serial

and

sudo apt-get install python-usb

 

I did try the serial install after I failed to get a comms between weewx and the vantage but still no joy. Maybe I need to do a clean installation using both usb and serial

 

Rgds

 

David

[Thomas Keffer]

I know it's not obvious, but for the Vantage series it does not matter whether you have a serial or USB connector, they both use the serial package. The usb package is not needed. See the table http://weewx.com/docs/usersguide.htm#hardware

You say you installed python-serial? Let's test it. Try

$ python

>>> import serial

If it raises an exception, it's not on the system. Try installing again.

If that still doesn't work, there's something mighty unusual with your RPi and we'll take it from there.

-tk

--

[vigilancewx]

just tried that and no problems found with

 

$ python

>>> import serial

no exceptions

 

this live fixing just rebooting it now

 

 

 

 

Hi Tom

 

Thanks for the quick reply

 

I used sudo apt-get install python-usb

 

the install guide says

required if hardware is serial or USB

sudo apt-get install python-serial

sudo apt-get install python-usb

 

as I am only using a usb connection I only installed the usb option

 

do I need to install both

sudo apt-get install python-serial

and

sudo apt-get install python-usb

 

I did try the serial install after I failed to get a comms between weewx and the vantage but still no joy. Maybe I need to do a clean installation using both usb and serial

 

Rgds

 

David

 

 

 

 

 

 

On Wednesday, November 13, 2013 7:59:00 PM UTC, vigilancewx wrote:

[vigilancewx]

YES

 

Thanks for that

 

ok in now says my underground password is invalid ok we soon sort that out and its off download a lot of history from the vantage

 

wow big learn curve here

 

thanks again

 

I did try before to install the serial and usb but I think I had also changed it from ttyUSB0 to ttyusb1 kind of made my own mess. too many changes at once

 

 

On Wednesday, November 13, 2013 7:59:00 PM UTC, vigilancewx wrote: