Reply to Python 3.4.3 and sockets on Mon, 08 Feb 2016 04:57:16 GMT

Jarl U. Christian Persson — Mon, 08 Feb 2016 04:57:16 GMT

Have anyone gotten sockets to work on the omega?

Running something like

import socket
import encodings.idna
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = socket.gethostname()
port = 9999
s.bind((host, port))

Throws the error

Traceback (most recent call last):
  File "server3.py", line 2, in 
    import encodings.idna
  File "/usr/lib/python3.4/encodings/idna.py", line 3, in 
    import stringprep, re, codecs
  File "/usr/lib/python3.4/stringprep.py", line 8, in 
    from unicodedata import ucd_3_2_0 as unicodedata
ImportError: No module named 'unicodedata'

Google'in "unicodedata" afaik only gives me pre python3 results....

Any ideas?

Reply to Python 3.4.3 and sockets on Wed, 20 Jan 2016 20:45:31 GMT

Massimiliano della Rovere — Wed, 20 Jan 2016 20:45:31 GMT

I receive a very different error.

root@Omega-09E9:/proc# oupgrade -version

Device Firmware Version: 0.0.6 b26

root@Omega-09E9:~/test# python3 --version

Python 3.4.3

root@Omega-09E9:~/test# cat test.py
import socket
import encodings.idna
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = socket.gethostname()
port = 9999
s.bind((host, port))

root@Omega-09E9:~/test# python3 test.py
Traceback (most recent call last):
File "prova.py", line 6, in
s.bind((host, port))
socket.gaierror: [Errno -2] Name or service not known

In my case the error is caused by the fact that the hostname cannot be resolved by any DNS.

A simple solution is adding it to /etc/hosts.

root@Omega-09E9:~/test# cat /etc/hosts
127.0.0.1 localhost
127.0.0.1 Omega-09E9

Reply to Python 3.4.3 and sockets on Thu, 21 Jan 2016 09:27:21 GMT

Massimiliano della Rovere — Thu, 21 Jan 2016 09:27:21 GMT

@Jarl-U-Christian-Persson It's worth to say that I'm using external USB storage [1] to install all the python3 modules available[2][3] through opkg [4].
May be you are missing some modules? double check it.

[1] https://wiki.onion.io/Tutorials/Using-USB-Storage-as-Rootfs - "option extroot with pivot-overlay"

[2] List all the python3 packages available in the repository:

opkg find '* python3 *' (remove the spaces before and after the *)

[3] List of all the python3 packages installed:

opkg list-installed | grep python3

[4] https://wiki.openwrt.org/doc/techref/opkg

Reply to Python 3.4.3 and sockets on Sat, 23 Jan 2016 14:44:24 GMT

Jarl U. Christian Persson — Sat, 23 Jan 2016 14:44:24 GMT

Until I get within reach of my Omega I can say that, the hostname is changed and it's python3-light.

Update

Packages found

python3-base - 3.4.3-2
python3-light - 3.4.3-2

Reply to Python 3.4.3 and sockets on Mon, 08 Feb 2016 04:56:45 GMT

Jarl U. Christian Persson — Mon, 08 Feb 2016 04:56:45 GMT

A far as I can tell it was due to me running "python-light", installed the full python3 on a external usb as suggested and that fixed it.

Copied the output from installing python3, in case someone wants to dig into what the cause might be.

root@Omega-225A:/# opkg install python3
Installing python3 (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3_3.4.3-2_ar71xx.ipk.
Installing python3-light (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-light_3.4.3-2_ar71xx.ipk.
Installing python3-base (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-base_3.4.3-2_ar71xx.ipk.
Installing libffi (3.0.13-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libffi_3.0.13-1_ar71xx.ipk.
Installing libbz2 (1.0.6-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/base/libbz2_1.0.6-2_ar71xx.ipk.
Installing python3-asyncio (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-asyncio_3.4.3-2_ar71xx.ipk.
Installing python3-codecs (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-codecs_3.4.3-2_ar71xx.ipk.
Installing python3-ctypes (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-ctypes_3.4.3-2_ar71xx.ipk.
Installing python3-dbm (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-dbm_3.4.3-2_ar71xx.ipk.
Installing libdb47 (4.7.25.4.NC-4.1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libdb47_4.7.25.4.NC-4.1_ar71xx.ipk.
Installing libxml2 (2.9.2-3) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libxml2_2.9.2-3_ar71xx.ipk.
Installing python3-decimal (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-decimal_3.4.3-2_ar71xx.ipk.
Installing python3-distutils (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-distutils_3.4.3-2_ar71xx.ipk.
Installing python3-email (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-email_3.4.3-2_ar71xx.ipk.
Installing python3-gdbm (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-gdbm_3.4.3-2_ar71xx.ipk.
Installing libgdbm (1.11-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libgdbm_1.11-1_ar71xx.ipk.
Installing python3-logging (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-logging_3.4.3-2_ar71xx.ipk.
Installing python3-lzma (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-lzma_3.4.3-2_ar71xx.ipk.
Installing liblzma (5.2.1-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/liblzma_5.2.1-2_ar71xx.ipk.
Installing python3-multiprocessing (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-multiprocessing_3.4.3-2_ar71xx.ipk.
Installing python3-ncurses (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-ncurses_3.4.3-2_ar71xx.ipk.
Installing python3-openssl (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-openssl_3.4.3-2_ar71xx.ipk.
Installing python3-pydoc (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-pydoc_3.4.3-2_ar71xx.ipk.
Installing python3-sqlite3 (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-sqlite3_3.4.3-2_ar71xx.ipk.
Installing libsqlite3 (3081101-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libsqlite3_3081101-1_ar71xx.ipk.
Installing python3-unittest (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-unittest_3.4.3-2_ar71xx.ipk.
Installing python3-xml (3.4.3-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python3-xml_3.4.3-2_ar71xx.ipk.
Configuring python3-base.
Configuring libffi.
Configuring libbz2.
Configuring python3-light.
Configuring python3-pydoc.
Configuring liblzma.
Configuring python3-email.
Configuring python3-decimal.
Configuring python3-xml.
Configuring libxml2.
Configuring python3-ncurses.
Configuring python3-distutils.
Configuring python3-codecs.
Configuring python3-multiprocessing.
Configuring python3-asyncio.
Configuring python3-ctypes.
Configuring libdb47.
Configuring python3-dbm.
Configuring libgdbm.
Configuring python3-gdbm.
Configuring python3-logging.
Configuring python3-lzma.
Configuring python3-openssl.
Configuring libsqlite3.
Configuring python3-sqlite3.
Configuring python3-unittest.
Configuring python3.