The lastest trunk, revision 689fb804f2 (2010-06-08), fixed the
"communication error" on Ubuntu 10.04.
Here's what I did:
1. Uninstalled simplejson 2.1.1 in Ubuntu using:
"sudo easy_install -m simplejson"
2. Confirmed that "communication error" comes back after uninstall.
3. Cloned web2py trunk using:
"sudo -u www-data hg clone https://web2py.googlecode.com/hg/
web2py"
4. Confirmed web2py works without "communication error" on Ubuntu
10.04.
Thank you for amazing support. I find it interesting that web2py
1.79.1 worked without problems on Windows (even with Python 2.6.5 and
web2py 1.79.1 src code version.)
On Jun 7, 11:38 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
> On Jun 7, 11:30 pm, Salvor Hardin <salvor.pub...@gmail.com> wrote:
>
> > Thank you!
>
> > Your suggestion fixed the "communication error" on Ubuntu Server 10.04
> > when saving files using ajax editor.
>
> > Here are the 3 steps in case you want to cut/paste to FAQ:
>
> > 1. sudo aptitude install python-setuptools
> > 2. sudo easy_install simplejson
> > 3. sudo /etc/init.d/apache2 restart
>
> > Speaking of 3rd-party libraries, I noticed jquery 1.4.2 is
> > available :)
>
> In trunk now. please give it a try.
>
>
>
>
>
> > On Jun 7, 10:43 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > aha. json problem. We upgraded to the latest simplejson. Yo may have
> > > an older version installed in your system that is conflicting with
> > > it.
>
> > > user easy_install to upgrade simplejson
>
> > > On Jun 7, 9:21 pm, Salvor Hardin <salvor.pub...@gmail.com> wrote:
>
> > > > I'm sorry, I looked in the wrong directory and made a mistake with
> > > > Firebug.
>
> > > > I found this in admin/errors/ and hope you find it useful:
>
> > > > Traceback (most recent call last):
> > > > File "gluon/restricted.py", line 178, in restricted
> > > > exec ccode in environment
> > > > File "/srv/web2py/applications/admin/controllers/default.py", line
> > > > 1060, in <module>
> > > > File "gluon/globals.py", line 96, in <lambda>
> > > > self._caller = lambda f: f()
> > > > File "/srv/web2py/applications/admin/controllers/default.py", line
> > > > 404, in edit
> > > > return response.json({'file_hash': file_hash, 'saved_on':
> > > > saved_on, 'functions':functions, 'controller': controller,
> > > > 'application': request.args[0] })
> > > > File "gluon/globals.py", line 203, in json
> > > > return json(data)
> > > > File "gluon/serializers.py", line 29, in json
> > > > return simplejson.dumps(value)
> > > > File "gluon/contrib/simplejson/__init__.py", line 228, in dumps
> > > > return _default_encoder.encode(obj)
> > > > File "gluon/contrib/simplejson/encoder.py", line 229, in encode
> > > > chunks = self.iterencode(o, _one_shot=True)
> > > > File "gluon/contrib/simplejson/encoder.py", line 290, in iterencode
> > > > self.skipkeys, self.allow_nan, key_memo, self.use_decimal)
> > > > TypeError: make_encoder() takes at most 9 arguments (11 given)
>
> > > > On Jun 7, 1:04 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > > try the following. delete all your tickets app/errors/*
> > > > > reproduce the problem and see if you find a new ticket file. If so,
> > > > > please email it to me.
>
> > > > > On Jun 7, 12:43 pm, Salvor Hardin <salvor.pub...@gmail.com> wrote:
>
> > > > > > Here's what I tried:
>
> > > > > > * I setup SSH tunnel from my Vista desktop's localhost:8080 to
> > > > > > ubuntu.private.lan:80.
> > > > > > * I modified Apache2's <virtualhost *:80> to enable access to
> > > > > > /admin
>
> > > > > > The new non-HTTPS, ssh-tunneled, remote URL to ubuntu.private.lan
> > > > > > is:
>
> > > > > >
> > > > > > http://localhost:8080/admin/default/edit/myblog/views/default/index.html
>
> > > > > > I got same problem again on Firefox and Chrome. Files get saved
> > > > > > successfully, but "Last Saved On" field shows "communication error"
> > > > > > in
> > > > > > red background color every time I click Save button.
>
> > > > > > Next, I'll try using Rocket on Ubuntu, just for debugging this
> > > > > > problem. Rocket won't be approved for production servers here (this
> > > > > > summer), so I hope we can find a solution using Apache 2.2.14.
>
> > > > > > On Jun 7, 11:58 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > > > > Does it work without ssl? Which browser are you using? Have you
> > > > > > > tried
> > > > > > > other browsers?
>
> > > > > > > Massimo
>
> > > > > > > On Jun 7, 11:47 am, Salvor Hardin <salvor.pub...@gmail.com> wrote:
>
> > > > > > > > I'm new to web2py and python (currently evaluating python
> > > > > > > > frameworks
> > > > > > > > to replace Ruby on Rails on production servers by July 4th
> > > > > > > > weekend.)
>
> > > > > > > > PROBLEM:
>
> > > > > > > > * Saving a file using the admin interface displays a red
> > > > > > > > "communication error" in the "Last Saved On" field. However,
> > > > > > > > when I
> > > > > > > > click Reload in the browser, a new date and time appears
> > > > > > > > correctly so
> > > > > > > > the file is successfully saved.
>
> > > > > > > > I'm using HTTPS (web2py is not running on 127.0.0.1.)
>
> > > > > > > > SYSTEM:
> > > > > > > > * Software: web2py 1.79.1, Python 2.6.5, Apache 2.2.14,
> > > > > > > > mod_wsgi 2.8,
> > > > > > > > OpenSSL 0.98k, sqlite 3.6.22
> > > > > > > > * Browsers: Latest stable versions of Chrome and Firefox on
> > > > > > > > Vista 32-
> > > > > > > > bit
> > > > > > > > * OS: Ubuntu Server 10.04 LTS guest running in Virtual PC 2007
> > > > > > > > SP1 on
> > > > > > > > Vista 32-bit host
> > > > > > > > (because Virtual PC 2007 only uses ~16 (sixteen) MB
> > > > > > > > RAM for
> > > > > > > > actively used Ubuntu Server 10.04 guest setup with 512 MB RAM,
> > > > > > > > and because my work desktop is Vista, and I need to
> > > > > > > > develop
> > > > > > > > web apps on identical OS & packages as the production server
> > > > > > > > due to
> > > > > > > > policy)
>
> > > > > > > > CONFIGURATION:
>
> > > > > > > > I'm using HTTPS, so here's the SSL portion of the Apache2 config
> > > > > > > > (ubuntu.private.lan is the dev machine mapped to a LAN address):
>
> > > > > > > > <VirtualHost *:80>
> > > > > > > > ServerName ubuntu.private.lan
> > > > > > > > WSGIDaemonProcess web2py user=www-data group=www-data display-
> > > > > > > > name=web2py
> > > > > > > > ...
> > > > > > > > </VirtualHost>
>
> > > > > > > > <IfModule mod_ssl.c>
> > > > > > > > <VirtualHost *:443>
> > > > > > > > ServerName ubuntu.private.lan
>
> > > > > > > > SSLEngine on
> > > > > > > > SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem
> > > > > > > > SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
> > > > > > > > <FilesMatch "\.(cgi|shtml|phtml|php)$">
> > > > > > > > SSLOptions +StdEnvVars
> > > > > > > > </FilesMatch>
> > > > > > > > <Directory /usr/lib/cgi-bin>
> > > > > > > > SSLOptions +StdEnvVars
> > > > > > > > </Directory>
> > > > > > > > BrowserMatch "MSIE [2-6]" nokeepalive ssl-unclean-shutdown
> > > > > > > > downgrade-1.0 force-response-1.0
> > > > > > > > # MSIE 7 and newer should be able to use keepalive
> > > > > > > > BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
>
> > > > > > > > # WSGIDaemonProcess defined is under <VirtualHost *:80> as:
> > > > > > > > WSGIDaemonProcess web2py user=www-data group=www-data display-
> > > > > > > > name=web2py
> > > > > > > > WSGIProcessGroup web2py
> > > > > > > > WSGIScriptAlias / /srv/web2py/wsgihandler.py
>
> > > > > > > > <Directory /srv/web2py>
> > > > > > > > AllowOverride None
> > > > > > > > Order Allow,Deny
> > > > > > > > Deny from all
> > > > > > > > <Files wsgihandler.py>
> > > > > > > > Allow from all
> > > > > > > > </Files>
> > > > > > > > </Directory>
>
> > > > > > > > AliasMatch ^/([^/]+)/static/(.*) \
> > > > > > > > /srv/web2py/applications/$1/static/$2
>
> > > > > > > > <Directory /srv/web2py/applications/*/static/>
> > > > > > > > Order Allow,Deny
> > > > > > > > Allow from all
> > > > > > > > </Directory>
>
> > > > > > > > CustomLog /var/log/apache2/access.log common
> > > > > > > > ErrorLog /var/log/apache2/error.log
>
> > > > > > > > </VirtualHost>
> > > > > > > > </IfModule>
