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Groups > comp.lang.python > #43566

Re: Unicode issue with Python v3.3

Date 2013-04-14 19:28 +1000
From Cameron Simpson <cs@zip.com.au>
Subject Re: Unicode issue with Python v3.3
References <f6140a71-533e-4a6c-810d-6b8b1b046932@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.584.1365931737.3114.python-list@python.org> (permalink)

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On 13Apr2013 23:00, nagia.retsina@gmail.com <nagia.retsina@gmail.com> wrote:
| root@nikos [/home/nikos/public_html/foo-py]# pwd
| /home/nikos/public_html/foo-py
| root@nikos [/home/nikos/public_html/foo-py]# cat foo.py 
| #!/bin/sh
| exec 2>>/home/nikos/cgi.err.out
| echo "$0 $*" >&2
| id >&2
| env | sort >&2
| set -x
| exec /full/path/to/foo-py ${1+"$@"}
| 
| root@nikos [/home/nikos/public_html/foo-py]# python3 foo.py 
|   File "foo.py", line 2
|     exec 2>>/home/nikos/cgi.err.out
|          ^
| SyntaxError: invalid syntax

That is because foo.py isn't a python script anymore, it is a shell script.
Its purpose is to divert stderr to a file and to recite various
things about the environment to that file in addition to any error
messages.

Just run it directly:

  ./foo.py

The #! line should cause it to be run by the shell.

I also recommend you try to do all this as your normal user account.
Root is for administration, such as stopping/starting apache and
so on. Not test running scripts from the command line; consider:
if the script has bugs, as root it can do an awful lot of damage.

| root@nikos [/home/nikos/public_html/foo-py]# 
| As far as thr tail -f of the error_log:
| root@nikos [/home/nikos/public_html]# touch /var/log/httpd/error_log

That won't do you much good; apache has not opened it, and so it
will not be writing to it. It was writing to a file of that name,
but you removed that file. Apache probably still has its hooks in the old
file (which now has no name).

Restarting apache should open (or create if missing) this file for you.

| root@nikos [/home/nikos/public_html]# tail -f /var/log/httpd/error_log
| and its empty even when at the exact same time i run 'python3
| metrites.py' from another interactive prompt when it supposed to
| give live feed of the error messages.

No, _apache_ writes to that file. So only when you visit the web
page will stuff appear there.

If you just run things from the command line, error messages will appear on your terminal. Or, after this line of the wrapper script:

  exec 2>>/home/nikos/cgi.err.out

the error messages will appear in cgi.err.out.

| Cameron would it be too much to ask to provide you with root
| access to my VPS server so you can have a look there too?
| i can pay you if you like if you wait a few days to gather some money.

I really do not recommend that:

  - it is nuts to blithely allow a stranger root access to your system
  - you won't learn anything about CGI scripts

What you need for further debugging of your python issues is access
to the error messages from the CGI script. That is the purpose of
the wrapper script.

Get the wrapper running on the command line and then test it via the browser.

Cheers,
-- 
Cameron Simpson <cs@zip.com.au>

Lord grant me the serenity to accept the things I can not change,
     the courage to change the things that I can,
and the wisdom to hide the bodies of those people I had to kill
     because they pissed me off.
        - Jeffrey Papen <JPapen@asucla.ucla.edu>

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Thread

Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-09 14:10 -0700
  Re: Unicode issue with Python v3.3 Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-09 15:34 -0600
    Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-09 20:16 -0700
      Re: Unicode issue with Python v3.3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-10 04:25 +0000
        Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-10 14:46 +1000
          Re: Unicode issue with Python v3.3 rusi <rustompmody@gmail.com> - 2013-04-09 22:06 -0700
            Re: Unicode issue with Python v3.3 rusi <rustompmody@gmail.com> - 2013-04-09 23:04 -0700
              Re: Unicode issue with Python v3.3 Antoine Pitrou <solipsis@pitrou.net> - 2013-04-10 07:04 +0000
              Re: Unicode issue with Python v3.3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-10 08:28 +0000
                People in the python community [was Re: Unicode issue with Python v3.3] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-10 08:34 +0000
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-04-10 10:31 +0100
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 03:50 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 03:50 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 03:53 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 03:53 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Peter Otten <__peter__@web.de> - 2013-04-10 13:11 +0200
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Peter Otten <__peter__@web.de> - 2013-04-10 13:13 +0200
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 07:43 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-04-10 16:15 +0100
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 09:50 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Michael Torrie <torriem@gmail.com> - 2013-04-11 21:20 -0600
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 09:50 -0700
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Chris Angelico <rosuav@gmail.com> - 2013-04-11 01:19 +1000
                Re: People in the python community [was Re: Unicode issue with Python v3.3] Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 07:43 -0700
                Re: Unicode issue with Python v3.3 Arnaud Delobelle <arnodel@gmail.com> - 2013-04-10 23:56 +0100
        Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-10 00:23 -0700
          Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 01:06 -0700
            Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-11 09:17 +1000
              Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-10 21:50 -0700
                Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-11 20:45 +1000
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 03:54 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 03:54 -0700
                Re: Unicode issue with Python v3.3 Nikos <nagia.retsina@gmail.com> - 2013-04-11 09:55 -0700
                Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-13 11:41 +1000
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 21:50 -0700
                Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-13 20:28 +1000
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-13 07:16 -0700
                Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-14 01:45 +1000
                Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-14 10:01 +1000
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-13 07:16 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 21:50 -0700
                Re: Unicode issue with Python v3.3 Nikos <nagia.retsina@gmail.com> - 2013-04-11 09:55 -0700
              Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-10 21:50 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 00:13 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 00:13 -0700
                Re: Unicode issue with Python v3.3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-11 07:50 +0000
                Re: Unicode issue with Python v3.3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-11 08:20 +0000
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 03:07 -0700
                Re: Unicode issue with Python v3.3 Lele Gaifax <lele@metapensiero.it> - 2013-04-11 12:45 +0200
          Re: Unicode issue with Python v3.3 Nobody <nobody@nowhere.com> - 2013-04-10 19:08 +0100
            Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-10 11:25 -0700
              Re: Unicode issue with Python v3.3 Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-10 13:50 -0600
    Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-09 20:16 -0700
  Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 21:36 -0700
    Re: Unicode issue with Python v3.3 alex23 <wuwei23@gmail.com> - 2013-04-11 22:06 -0700
      Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-11 22:42 -0700
        Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 05:50 -0700
          Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-12 23:14 +1000
            Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 06:18 -0700
              Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-12 23:21 +1000
            Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 06:18 -0700
              Re: Unicode issue with Python v3.3 rusi <rustompmody@gmail.com> - 2013-04-12 06:29 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 07:36 -0700
                Re: Unicode issue with Python v3.3 Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-12 12:37 -0600
                Re: Unicode issue with Python v3.3 Roy Smith <roy@panix.com> - 2013-04-12 14:49 -0400
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 13:48 -0700
                Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-12 13:48 -0700
  Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-13 23:00 -0700
    Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-14 19:28 +1000
      Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-14 04:22 -0700
        Re: Unicode issue with Python v3.3 Cameron Simpson <cs@zip.com.au> - 2013-04-18 09:00 +1000
          Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-17 20:37 -0700
          Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-17 20:37 -0700
          Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-19 12:16 -0700
      Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-14 04:22 -0700
      Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-15 11:42 -0700
      Re: Unicode issue with Python v3.3 Νίκος Γκρ33κ <nikos.gr33k@gmail.com> - 2013-04-15 11:42 -0700
      Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-16 23:56 -0700
        Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-17 17:01 +1000
        Re: Unicode issue with Python v3.3 Chris Angelico <rosuav@gmail.com> - 2013-04-17 17:32 +1000
      Re: Unicode issue with Python v3.3 nagia.retsina@gmail.com - 2013-04-16 23:56 -0700

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