Wednesday, November 12, 2014

Removing a Dexterity behavior in Generic Setup isn't possible

Post retracted. As Tres remarks, the output posted originally does not indicate a problem in GS but an invalid XML file.
 
I tried setting the attribute remove="true" on the element value="plone.app.multilingual.dx.interfaces.IDexterityTranslatable" in the property name="behaviors"

If the problem does exist, the workaround might be to set purge="true" on the property and list all the behaviors you want.

Friday, September 5, 2014

Fixing Berkeley DB version conflict while building openldap on Mac OSX

While building openldap on Mac OSX 10.9.4, i got this error: 
checking for Berkeley DB major version in db.h... 1
checking for Berkeley DB minor version in db.h... 0
checking if Berkeley DB version supported by BDB/HDB backends... no


The answer was at the end of  a looong Google search: http://www.openldap.org/faq/data/cache/1113.html, which translates to:
$ LD_LIBRARY_PATH="/usr/lib:/usr/local/lib:/opt/local/lib/db46:/usr/local/ssl/lib" LDFLAGS="-L/usr/local/lib -L/opt/local/lib/db46 -L/usr/local/ssl/lib" CPPFLAGS="-I/usr/local/include -I/opt/local/include/db46 -I/usr/local/ssl/include" ./configure $OTHER_OPTIONS

In a buildout using zc.recipe.cmmi, it looks like this:
[buildout]
parts =
    openldap-build
    ...


[openldap-build]
recipe = zc.recipe.cmmi
url = http://www.openldap.org/software/download/OpenLDAP/openldap-release/openldap-2.4.23.tgz
extra_options =
    --with-sasl --with-tls --enable-slapd=yes

environment =
    LD_LIBRARY_PATH=/usr/lib:/usr/local/lib:/opt/local/lib/db46:/usr/local/ssl/lib
    LDFLAGS=-L/usr/local/lib -L/opt/local/lib/db46 -L/usr/local/ssl/lib
    CPPFLAGS=-I/usr/local/include -I/opt/local/include/db46 -I/usr/local/ssl/include

Friday, July 4, 2014

AttributeError: render from plone.app.i18n.locales.languageselector

After migrating a Plone 3.3 site to Plone 4.3.3, the language selector refused to display:

error while rendering plone.app.i18n.locales.languageselector 

The log showed:

2014-07-04 10:39:11 ERROR plone.app.viewletmanager rendering of plone.portalheader in plone.app.i18n.locales.languageselector fails: render
Traceback (most recent call last):
  File "/Users/kees/.buildout/eggs/plone.app.viewletmanager-2.0.5-py2.6.egg/plone/app/viewletmanager/manager.py", line 105, in render
    html.append(viewlet.render())
  File "/Users/kees/.buildout/eggs/zope.viewlet-3.7.2-py2.6.egg/zope/viewlet/viewlet.py", line 59, in render
    raise AttributeError("render")
AttributeError: render


After googling for it, i found that a similar issue had existed in plonetheme.classic: https://dev.plone.org/ticket/12007 which referred to this commit: https://github.com/plone/plonetheme.classic/commit/3f36218d7b7e62a29fb67191eb6af49dd8242f2e

So i did an analogous change, replacing my existing viewlet registration:

           name="plone.app.i18n.locales.languageselector"
       for="*"
       manager="plone.app.layout.viewlets.interfaces.IPortalHeader"
       layer=".interfaces.IThemeSpecific"
       class="Products.LinguaPlone.browser.selector.TranslatableLanguageSelector"
       permission="zope.Public"
       />

With this:

 
               name="plone.app.i18n.locales.languageselector"
         for="*"
         manager="plone.app.layout.viewlets.interfaces.IPortalHeader"
         layer="argh.plonetheme.browser.interfaces.IThemeSpecific"
         class="Products.LinguaPlone.browser.selector.TranslatableLanguageSelector"
         template="locales/browser/languageselector.pt"
         permission="zope.Public"
         />
 

That fixed it.

Monday, June 2, 2014

Bitbucket's fluid layout: Where's the repository administration screen?

Under "settings", lower left corner of your screen. (Or via ${repo_url}/admin)

Friday, May 23, 2014

"Show Package Contents" in Mavericks

Before Mac OSX 10.9, you could "secondary click" an item in the Applications to get a menu with the option "Show Package Contents". In Mavericks, this option was removed from the menu.

In order to inspect the package contents, you can use the terminal:
$ cd /Applications
$ ls
...
MyApp
$ cd MyApp
$ ls
...
MyApp.app
...
$ cd MyApp.app
$ ls
Contents
$ cd Contents
$ ls
... 
$ open .

This last command will open the package contents in the Finder.
 

Tuesday, September 3, 2013

Python 2.4 bootstrapping


If you still have Plone 3 sites, most likely you will encounter issues when running bootstrap. At Four Digits, Ralph tweaked the bootstrap.py a bit to make it work.
If '/usr/bin/python2.4 python2.4 bootstrap.py' yields things like:
pkg_resources.VersionConflict: (setuptools 0.6c11 (/tmp/tmpSXDs7g/setuptools-0.6c11-py2.4.egg), Requirement.parse('setuptools>=0.7'))
and then you use the new buildout 2 bootstrap and you get a syntax error, and you fix that and then you get other errors, this alternative bootstrap.py might help:

##############################################################################
#
# Copyright (c) 2006 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Bootstrap a buildout-based project

Simply run this script in a directory containing a buildout.cfg.
The script accepts buildout command-line options, so you can
use the -c option to specify an alternate configuration file.
"""

import os, shutil, sys, tempfile, urllib, urllib2, subprocess
from optparse import OptionParser

if sys.platform == 'win32':
    def quote(c):
        if ' ' in c:
            return '"%s"' % c  # work around spawn lamosity on windows
        else:
            return c
else:
    quote = str

# See zc.buildout.easy_install._has_broken_dash_S for motivation and comments.
stdout, stderr = subprocess.Popen(
    [sys.executable, '-Sc',
     'try:\n'
     '    import ConfigParser\n'
     'except ImportError:\n'
     '    print 1\n'
     'else:\n'
     '    print 0\n'],
    stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
has_broken_dash_S = bool(int(stdout.strip()))

# In order to be more robust in the face of system Pythons, we want to
# run without site-packages loaded.  This is somewhat tricky, in
# particular because Python 2.6's distutils imports site, so starting
# with the -S flag is not sufficient.  However, we'll start with that:
if not has_broken_dash_S and 'site' in sys.modules:
    # We will restart with python -S.
    args = sys.argv[:]
    args[0:0] = [sys.executable, '-S']
    args = map(quote, args)
    os.execv(sys.executable, args)
# Now we are running with -S.  We'll get the clean sys.path, import site
# because distutils will do it later, and then reset the path and clean
# out any namespace packages from site-packages that might have been
# loaded by .pth files.
clean_path = sys.path[:]
import site  # imported because of its side effects
sys.path[:] = clean_path
for k, v in sys.modules.items():
    if k in ('setuptools', 'pkg_resources') or (
        hasattr(v, '__path__') and
        len(v.__path__) == 1 and
        not os.path.exists(os.path.join(v.__path__[0], '__init__.py'))):
        # This is a namespace package.  Remove it.
        sys.modules.pop(k)

is_jython = sys.platform.startswith('java')

setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
distribute_source = 'http://python-distribute.org/distribute_setup.py'


# parsing arguments
def normalize_to_url(option, opt_str, value, parser):
    if value:
        if '://' not in value:  # It doesn't smell like a URL.
            value = 'file://%s' % (
                urllib.pathname2url(
                    os.path.abspath(os.path.expanduser(value))),)
        if opt_str == '--download-base' and not value.endswith('/'):
            # Download base needs a trailing slash to make the world happy.
            value += '/'
    else:
        value = None
    name = opt_str[2:].replace('-', '_')
    setattr(parser.values, name, value)

usage = '''\
[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]

Bootstraps a buildout-based project.

Simply run this script in a directory containing a buildout.cfg, using the
Python that you want bin/buildout to use.

Note that by using --setup-source and --download-base to point to
local resources, you can keep this script from going over the network.
'''

parser = OptionParser(usage=usage)
parser.add_option("-v", "--version", dest="version",
                          help="use a specific zc.buildout version")
parser.add_option("-d", "--distribute",
                   action="store_true", dest="use_distribute", default=False,
                   help="Use Distribute rather than Setuptools.")
parser.add_option("--setup-source", action="callback", dest="setup_source",
                  callback=normalize_to_url, nargs=1, type="string",
                  help=("Specify a URL or file location for the setup file. "
                        "If you use Setuptools, this will default to " +
                        setuptools_source + "; if you use Distribute, this "
                        "will default to " + distribute_source + "."))
parser.add_option("--download-base", action="callback", dest="download_base",
                  callback=normalize_to_url, nargs=1, type="string",
                  help=("Specify a URL or directory for downloading "
                        "zc.buildout and either Setuptools or Distribute. "
                        "Defaults to PyPI."))
parser.add_option("--eggs",
                  help=("Specify a directory for storing eggs.  Defaults to "
                        "a temporary directory that is deleted when the "
                        "bootstrap script completes."))
parser.add_option("-t", "--accept-buildout-test-releases",
                  dest='accept_buildout_test_releases',
                  action="store_true", default=False,
                  help=("Normally, if you do not specify a --version, the "
                        "bootstrap script and buildout gets the newest "
                        "*final* versions of zc.buildout and its recipes and "
                        "extensions for you.  If you use this flag, "
                        "bootstrap and buildout will get the newest releases "
                        "even if they are alphas or betas."))
parser.add_option("-c", None, action="store", dest="config_file",
                   help=("Specify the path to the buildout configuration "
                         "file to be used."))

options, args = parser.parse_args()

if options.eggs:
    eggs_dir = os.path.abspath(os.path.expanduser(options.eggs))
else:
    eggs_dir = tempfile.mkdtemp()

if options.setup_source is None:
    if options.use_distribute:
        options.setup_source = distribute_source
    else:
        options.setup_source = setuptools_source

if options.accept_buildout_test_releases:
    args.insert(0, 'buildout:accept-buildout-test-releases=true')

try:
    import pkg_resources
    import setuptools  # A flag.  Sometimes pkg_resources is installed alone.
    if not hasattr(pkg_resources, '_distribute'):
        raise ImportError
except ImportError:
    ez_code = urllib2.urlopen(
        options.setup_source).read().replace('\r\n', '\n')
    ez = {}
    exec ez_code in ez
    setup_args = dict(to_dir=eggs_dir, download_delay=0)
    if options.download_base:
        setup_args['download_base'] = options.download_base
    if options.use_distribute:
        setup_args['no_fake'] = True
        if sys.version_info[:2] == (2, 4):
            setup_args['version'] = '0.6.32'
    ez['use_setuptools'](**setup_args)
    if 'pkg_resources' in sys.modules:
        reload(sys.modules['pkg_resources'])
    import pkg_resources
    # This does not (always?) update the default working set.  We will
    # do it.
    for path in sys.path:
        if path not in pkg_resources.working_set.entries:
            pkg_resources.working_set.add_entry(path)

cmd = [quote(sys.executable),
       '-c',
       quote('from setuptools.command.easy_install import main; main()'),
       '-mqNxd',
       quote(eggs_dir)]

if not has_broken_dash_S:
    cmd.insert(1, '-S')

find_links = options.download_base
if not find_links:
    find_links = os.environ.get('bootstrap-testing-find-links')
if not find_links and options.accept_buildout_test_releases:
    find_links = 'http://downloads.buildout.org/'
if find_links:
    cmd.extend(['-f', quote(find_links)])

if options.use_distribute:
    setup_requirement = 'distribute'
else:
    setup_requirement = 'setuptools'
ws = pkg_resources.working_set
setup_requirement_path = ws.find(
    pkg_resources.Requirement.parse(setup_requirement)).location
env = dict(
    os.environ,
    PYTHONPATH=setup_requirement_path)

requirement = 'zc.buildout'
version = options.version
if version is None and not options.accept_buildout_test_releases:
    # Figure out the most recent final version of zc.buildout.
    import setuptools.package_index
    _final_parts = '*final-', '*final'

    def _final_version(parsed_version):
        for part in parsed_version:
            if (part[:1] == '*') and (part not in _final_parts):
                return False
        return True
    index = setuptools.package_index.PackageIndex(
        search_path=[setup_requirement_path])
    if find_links:
        index.add_find_links((find_links,))
    req = pkg_resources.Requirement.parse(requirement)
    if index.obtain(req) is not None:
        best = []
        bestv = None
        for dist in index[req.project_name]:
            distv = dist.parsed_version
            if distv >= pkg_resources.parse_version('2dev'):
                continue
            if _final_version(distv):
                if bestv is None or distv > bestv:
                    best = [dist]
                    bestv = distv
                elif distv == bestv:
                    best.append(dist)
        if best:
            best.sort()
            version = best[-1].version

if version:
    requirement += '=='+version
else:
    requirement += '<2dev -c="" 0:="" a="" above="" add="" already="" any="" apparently="" args.append="" args="" back="" bootstrap="" br="" buildout="" by="" c="" clean="" cmd.append="" cmd="" command="" directory="" easy_install.="" egg="" eggs_dir="" else:="" env="" error="" errors="" exitcode="" for="" function="" if="" import="" in="" install="" into="" is="" is_jython:="" isn="" it="" main="" message="" n="" none:="" not="" occurred="" ook="" options.config_file="" options.eggs:="" otherwise="" output="" prefer="" prefers="" print="" provided="" push="" requirement="" s="" shutil.rmtree="" subprocess="" sys.executable="" sys.exit="" sys.stderr.flush="" sys.stdout.flush="" t="" temporary="" that="" the="" there="" this="" to="" trying="" up="" was="" we="" were="" when="" windows="" would="" ws.add_entry="" ws.require="" zc.buildout.="" zc.buildout.buildout.main="" zc.buildout.buildout="">
Credits for this go to Ralph.

Wednesday, July 17, 2013

Reusing code between views and viewlets

You may wonder, as i did today, how you can re-use code from your View inside a Viewlet. Just to help out the occasional googler, i'm recording my solution here.

Any Viewlet has its View as an attribute (see ViewletBase's __init__ method). So in your Viewlet class, you can do something like:
Class MyViewlet(ViewletBase):
    ...
    def reused_method(self):
            return self.view.original_method()