install pyserial on python 2.7.2

[fat265]

Hi guys

I am writing some code to talk to the serial port
I have installed the Kernal from XCSoar that gives me

/dev/ttyUSB0 when using USB OTG prolific usb-serial adapter

I can read and write to the serila port change baud rate etc via shell

But I want to do some serial stuff in python


the import serial command doesnt work ( as the 2.7.2 does have serial to import )

any suggestions..

[KevinShort]

PySerial be installed very easily, just run this command on your Kobo in your Python bin directory:

./python2.7 ./pip install pyserial

[fat265]

I normally run python scripts like this

python script.py or
./script.py

python is found in /mnt/onboard/.python
the executable is in /usr/bin

if i run you example ( ./python2.7 ./pip install pyserial )

It doesn't work because I don't have pip

but I can run this but get error ??? see below



[root@(none) bin]# python install pyserial
File "install", line 1
SyntaxError: Non-ASCII character '\xa0' in file install on line 2, but no encodi
ng declared; see http://www.python.org/peps/pep-0263.html for details
[root@(none) bin]#

[fat265]

I did this also but no go

ln -s /mnt/onboard/.python/bin/python2.7 /usr/bin/python2.7

[KevinShort]

Do you have pip in the python bin directory? How did you install python on your Kobo?

[fat265]

I dont have pip

I installed python following instructions from weather app

/mnt/onboard/.python

Then install-python.sh

Python and pygame work fine but no pip

[PeterT]

Do you mean instructions from https://www.mobileread.com/forums/sho...d.php?t=194376 or the newer https://www.mobileread.com/forums/sho...d.php?t=219173 ?

[KevinShort]

If you're using the python installation from the weather app, then to install pySerial you'll have to download it from the internet and maybe also download and install setuptools on your Kobo. I didn't include pip in the weather app's python, only in my newer python package for firmware 2.6 and above.

[fat265]

I am using older version weather app.

I will try the new version however i have several devices that have old firmware
So its handy to still use old python install because if i default my kobo the sercue version of firmware is older.

This way if i brick my glo or touch for example i can easily get it running by powering it uo while holding home or front light button


Some help re downloading pip would be good

I have internet access on my kobo via wifi so i can wget or ftp stuff directky if needed


Still learning linux its been 20 years since i used linux

[fat265]

I extracted pi pfrom youer new python install and ths is what i got

[root@(none) bin]# ./python ./pip install pyserial
Traceback (most recent call last):
File "./pip", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources
[root@(none) bin]#


can i run pip from your recent python.zip file using older kobo firmware ?
because above is what I get

[KevinShort]

I'm in the process of setting up a virtual debian armel machine, once I do I'll compile and upload python with pip for pre-2.6 firmware.

[fat265]

that would be great..

[KevinShort]

This python package should work for you.

[fat265]

it works if i run python2.7 from cmd line

[root@(none) bin]# python2.7
Python 2.7.5 (default, Aug 12 2013, 15:43:02)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>


but when i run just python i get this

[root@(none) bin]# python
Traceback (most recent call last):
File "/mnt/onboard/.python/lib/python2.7/site.py", line 548, in <module>
main()
File "/mnt/onboard/.python/lib/python2.7/site.py", line 530, in main
known_paths = addusersitepackages(known_paths)
File "/mnt/onboard/.python/lib/python2.7/site.py", line 266, in addusersitepackages
user_site = getusersitepackages()
File "/mnt/onboard/.python/lib/python2.7/site.py", line 241, in getusersitepackages
user_base = getuserbase() # this will also set USER_BASE
File "/mnt/onboard/.python/lib/python2.7/site.py", line 231, in getuserbase
USER_BASE = get_config_var('userbase')
File "/mnt/onboard/.python/lib/python2.7/sysconfig.py", line 516, in get_config_var
return get_config_vars().get(name)
File "/mnt/onboard/.python/lib/python2.7/sysconfig.py", line 449, in get_config_vars
import re
File "/mnt/onboard/.python/lib/python2.7/re.py", line 105, in <module>
import sre_compile
File "/mnt/onboard/.python/lib/python2.7/sre_compile.py", line 14, in <module>
import sre_parse
File "/mnt/onboard/.python/lib/python2.7/sre_parse.py", line 17, in <module>
from sre_constants import *
File "/mnt/onboard/.python/lib/python2.7/sre_constants.py", line 18, in <module>
from _sre import MAXREPEAT
ImportError: cannot import name MAXREPEAT
[root@(none) bin]#



if i run some of my existing code with that worked before hand with the only modiification being

#!/usr/bin/python2.7 on the first line

I get this

[root@(none) python]# ./dt2.py
Traceback (most recent call last):
File "./dt2.py", line 3, in <module>
import struct, pygame, os, sys, time, thread
File "/mnt/onboard/.python/lib/python2.7/site-packages/pygame/__init__.py", line 127, in <module>
from pygame.base import *
ImportError: ld-linux-armhf.so.3: cannot open shared object file: No such file or directory
[root@(none) python]#


Iany suggestions

P.S

thanks heaps you are a life saver \
hoping to re-pay the community with my own kobo hacking adventures
once i got everything working..

[KevinShort]

Hmm, I compiled in a virtual debian armel system, so I don't know why it's looking for something armhf related. I'll keep looking into it.