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  • Django blog reply system

    - by dana
    hello, i'm trying to build a mini reply system, based on the user's posts on a mini blog. Every post has a link named reply. if one presses reply, the reply form appears, and one edits the reply, and submits the form.The problem is that i don't know how to take the id of the post i want to reply to. In the view, if i use as a parameter one number (as an id of the blog post),it inserts the reply to the database. But how can i do it by not hardcoding? The view is: def save_reply(request): if request.method == 'POST': form = ReplyForm(request.POST) if form.is_valid(): new_obj = form.save(commit=False) new_obj.creator = request.user new_post = New(1) #it works only hardcoded new_obj.reply_to = new_post new_obj.save() return HttpResponseRedirect('.') else: form = ReplyForm() return render_to_response('replies/replies.html', { 'form': form, }, context_instance=RequestContext(request)) i have in forms.py: class ReplyForm(ModelForm): class Meta: model = Reply fields = ['reply'] and in models: class Reply(models.Model): reply_to = models.ForeignKey(New) creator = models.ForeignKey(User) reply = models.CharField(max_length=140,blank=False) objects = NewManager() mentioning that New is the micro blog class thanks

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  • Python file-io code listing current folder path instead of the specified

    - by Tom Brito
    I have the code: import os import sys fileList = os.listdir(sys.argv[1]) for file in fileList: if os.path.isfile(file): print "File >> " + os.path.abspath(file) else: print "Dir >> " + os.path.abspath(file) Located in my music folder ("/home/tom/Music") When I call it with: python test.py "/tmp" I expected it to list my "/tmp" files and folders with the full path. But it printed lines like: Dir >> /home/tom/Music/seahorse-gw2jNn Dir >> /home/tom/Music/FlashXX9kV847 Dir >> /home/tom/Music/pulse-DcIEoxW5h2gz This is, the correct file names, but the wrong path (and this files are not either in my Music folder).. What's wrong with this code?

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  • how to pass an xml file to lxml to parse?

    - by BeeBand
    I'm trying to parse an xml file using lxml. xml.etree allowed me to simply pass the file name as a parameter to the parse function, so I attempted to do the same with lxml. My code: from lxml import etree from lxml import objectify file = "C:\Projects\python\cb.xml" tree = etree.parse(file) but I get the error: Traceback (most recent call last): File "cb.py", line 5, in <module> tree = etree.parse(file) File "lxml.etree.pyx", line 2698, in lxml.etree.parse (src/lxml/lxml.etree.c:4 9590) File "parser.pxi", line 1491, in lxml.etree._parseDocument (src/lxml/lxml.etre e.c:71205) File "parser.pxi", line 1520, in lxml.etree._parseDocumentFromURL (src/lxml/lx ml.etree.c:71488) File "parser.pxi", line 1420, in lxml.etree._parseDocFromFile (src/lxml/lxml.e tree.c:70583) File "parser.pxi", line 975, in lxml.etree._BaseParser._parseDocFromFile (src/ lxml/lxml.etree.c:67736) File "parser.pxi", line 539, in lxml.etree._ParserContext._handleParseResultDo c (src/lxml/lxml.etree.c:63820) File "parser.pxi", line 625, in lxml.etree._handleParseResult (src/lxml/lxml.e tree.c:64741) File "parser.pxi", line 565, in lxml.etree._raiseParseError (src/lxml/lxml.etr ee.c:64084) lxml.etree.XMLSyntaxError: AttValue: " or ' expected, line 2, column 26 What am I doing wrong?

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  • Is there a literal notation for decimal in IronPython?

    - by jeroenh
    suppose I have the following IronPython script: def Calculate(input): return input * 1.21 When called from C# with a decimal, this function returns a double: var python = Python.CreateRuntime(); dynamic engine = python.UseFile("mypythonscript.py") decimal input = 100M; // input is of type Decimal // next line throws RuntimeBinderException: // "cannot implicitly convert double to decimal" decimal result = engine.Calculate(input); I seem to have two options: First, I could cast at the C# side: seems like a no-go as I might loose precision. decimal result = (decimal)engine.Calculate(input); Second option is to use System.Decimal in the python script: works, but pollutes the script, which should be understandable for my users... import clr import System def CalculateVAT(amount): return amount * System.Decimal(1.21) Is there a way to tell the DLR that the number 1.21 should be interpreted as a Decimal, much like I would use the '1.21M' notation in C#?

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  • Starting Tornado Web

    - by picklepete
    Hi, I'm quite new to using Tornado Web as a web server, and am having a little difficulty keeping it running. I normally use Django and Nginx, and am used to start/stop/restarting the server. However with Tornado I'm having trouble telling it to "run" without directly executing my main python file for the site, ie "python ~/path/to/server.py". I'm sure I'm getting this completely wrong - is there a way of 'bootstrapping' my script so that when Nginx starts, Tornado starts? Any help would be appreciated!

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  • Python question, how to pass an xml file to lxml to parse?

    - by BeeBand
    I'm relatively new to python, my code is: from lxml import etree from lxml import objectify file = "C:\Projects\python\cb.xml" tree = etree.parse(file) but I get the error: Traceback (most recent call last): File "cb.py", line 5, in <module> tree = etree.parse(file) File "lxml.etree.pyx", line 2698, in lxml.etree.parse (src/lxml/lxml.etree.c:4 9590) File "parser.pxi", line 1491, in lxml.etree._parseDocument (src/lxml/lxml.etre e.c:71205) File "parser.pxi", line 1520, in lxml.etree._parseDocumentFromURL (src/lxml/lx ml.etree.c:71488) File "parser.pxi", line 1420, in lxml.etree._parseDocFromFile (src/lxml/lxml.e tree.c:70583) File "parser.pxi", line 975, in lxml.etree._BaseParser._parseDocFromFile (src/ lxml/lxml.etree.c:67736) File "parser.pxi", line 539, in lxml.etree._ParserContext._handleParseResultDo c (src/lxml/lxml.etree.c:63820) File "parser.pxi", line 625, in lxml.etree._handleParseResult (src/lxml/lxml.e tree.c:64741) File "parser.pxi", line 565, in lxml.etree._raiseParseError (src/lxml/lxml.etr ee.c:64084) lxml.etree.XMLSyntaxError: AttValue: " or ' expected, line 2, column 26 What am I doing wrong?

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  • Python Framework for small website

    - by mvid
    I am planning a small, simple website to showcase myself as an engineer. My preferred language is Python and I hope to use it to create my website. My pages will be mostly static, with some database stored posts/links. The site will be simple, but I would like to have freedom in how it operates. I plan on using CSS/JS for the design, so I really just need an easy way to throw a small amount of content around. Some frameworks I have come across: Flask cherry.py Pinax Are there any suggestions? Does anyone have any experience with Python on small/hobby websites?

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  • django admin gives warning "Field 'X' doesn't have a default value"

    - by noam
    I have created two models out of an existing legacy DB , one for articles and one for tags that one can associate with articles: class Article(models.Model): article_id = models.AutoField(primary_key=True) text = models.CharField(max_length=400) class Meta: db_table = u'articles' class Tag(models.Model): tag_id = models.AutoField(primary_key=True) tag = models.CharField(max_length=20) article=models.ForeignKey(Article) class Meta: db_table = u'article_tags' I want to enable adding tags for an article from the admin interface, so my admin.py file looks like this: from models import Article,Tag from django.contrib import admin class TagInline(admin.StackedInline): model = Tag class ArticleAdmin(admin.ModelAdmin): inlines = [TagInline] admin.site.register(Article,ArticleAdmin) The interface looks fine, but when I try to save, I get: Warning at /admin/webserver/article/382/ Field 'tag_id' doesn't have a default value

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  • Pylons importing Psycopg2 error

    - by resopollution
    Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.6/site-packages/psycopg2/__init__.py", line 60, in <module> from _psycopg import BINARY, NUMBER, STRING, DATETIME, ROWID ImportError: dlopen(/Library/Python/2.6/site-packages/psycopg2/_psycopg.so, 2): Symbol not found: _PQbackendPID Referenced from: /Library/Python/2.6/site-packages/psycopg2/_psycopg.so Expected in: flat namespace in /Library/Python/2.6/site-packages/psycopg2/_psycopg.so Psycopg2 was working fine before, but now I get this error. Any ideas on this issue much appreciated. EDIT: so after dealing with so many psycopg2 errors everytime I set up my mac, I've decided to use VMWareFusion running Ubuntu instead.

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  • cannot import name formats

    - by cadthecoder
    what does it mean? i ve googled but found nothing =/ ImportError at /admin/ cannot import name formats Request Method: GET Request URL: http://127.0.0.1:8000/admin/ Exception Type: ImportError Exception Value: cannot import name formats Exception Location: /usr/lib/python2.6/site-packages/django/contrib/admin/util.py in <module>, line 3 Python Executable: /usr/bin/python Python Version: 2.6.0 Python Path: ['/home/cad/project/lkd/gezegen/lkd_gezegen', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', '/usr/lib64/python2.6/plat-linux2', '/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', '/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', '/usr/lib64/python2.6/site-packages/Numeric', '/usr/lib64/python2.6/site-packages/PIL', '/usr/lib64/python2.6/site-packages/gst-0.10', '/usr/lib64/python2.6/site-packages/gtk-2.0', '/usr/lib64/python2.6/site-packages/wx-2.8-gtk2-unicode', '/usr/lib/python2.6/site-packages']

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  • Why is Django reverse() failing with unicode?

    - by JeffS
    Here is a django models file that is not working as I would expect. I would expect the to_url method to do the reverse lookup in the urls.py file, and get a url that would correspond to calling that view with arguments supplied by the Arguments model. from django.db import models class Element(models.Model): viewname = models.CharField(max_length = 200) arguments = models.ManyToManyField('Argument', null = True, blank = True ) @models.permalink def to_url(self): d = dict( self.arguments.values_list('key', 'value') ) return (self.viewname, (), d) class Argument(models.Model): key = models.CharField(max_length=200) value = models.CharField(max_length=200) The value d ends up as a dictionary from a unicode string to another unicode string, which I believe, should work fine with the reverse() method that would be called by the permalink decorator, however, it results in: TypeError: reverse() keywords must be strings

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  • Cannot easy_install readline for Python 2.7.3 on Mac Os Lion

    - by user11170
    I am trying to install readline for python 2.7.3 installed via homebrew. If I type easy_install readline I get Downloading http://pypi.python.org/packages/source/r/readline/readline-6.2.2.tar.gz#md5=ad9d4a5a3af37d31daf36ea917b08c77 Processing readline-6.2.2.tar.gz Writing /var/folders/44/dhrdb5sx53s243j4w03063vh0000gn/T/easy_install-64FbG8/readline-6.2.2/setup.cfg Running readline-6.2.2/setup.py -q bdist_egg --dist-dir /var/folders/44/dhrdb5sx53s243j4w03063vh0000gn/T/easy_install-64FbG8/readline-6.2.2/egg-dist-tmp-NOmStB clang: error: no such file or directory: 'readline/libreadline.a' clang: error: no such file or directory: 'readline/libhistory.a' error: Setup script exited with error: command '/usr/bin/clang' failed with exit status 1 Any ideas about how I could fix this ? Thanks

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  • python __getattr__ help

    - by Stefanos Tux Zacharakis
    Reading a Book, i came across this code... # module person.py class Person: def __init__(self, name, job=None, pay=0): self.name = name self.job = job self.pay = pay def lastName(self): return self.name.split()[-1] def giveRaise(self, percent): self.pay = int(self.pay *(1 + percent)) def __str__(self): return "[Person: %s, %s]" % (self.name,self.pay) class Manager(): def __init__(self, name, pay): self.person = Person(name, "mgr", pay) def giveRaise(self, percent, bonus=.10): self.person.giveRaise(percent + bonus) def __getattr__(self, attr): return getattr(self.person, attr) def __str__(self): return str(self.person) It does what I want it to do, but i do not understand the __getattr__ function in the Manager class. I know that it Delegates all other attributes from Person class. but I do not understand the way it works. for example why from Person class? as I do not explicitly tell it to. person(module is different than Person(class) Any help is highly appreciated :)

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  • Django ValueError at /admin/

    - by mjaz
    Hello, I am running Django with mod_python on a Red Hat Linux box in production. A little while ago, for a reason unknown to me, the admin stopped working, throwing a 500 error. The error is as follows: ValueError at /admin/ Empty module name Request Method: GET Exception Type: ValueError Exception Value: Empty module name Exception Location: /usr/local/lib/python2.6/site-packages/django/utils/importlib.py in import_module, line 35 Python Executable: /usr/bin/python Python Version: 2.6.2 Has anyone encountered this before? I have absolutely no idea how to fix this problem. Thank you for any help.

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  • Asp.Net MVC style routing in Django

    - by Andrew Hanson
    I've been programming in Asp.Net MVC for quite some time now and to expand a little bit beyond the .Net world I've recently began learning Python and Django. I am enjoying Django but one thing I am missing from Asp.Net MVC is the automatic routing from my urls to my controller actions. In Asp.Net MVC I can build much of my application using this single default route: routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); In Django I've found myself adding an entry to urls.py for each view that I want to expose which leads to a lot more url patterns than I've become used to in Asp.Net MVC. Is there a way to create a single url pattern in Django that will handle "[Application]/view/[params]" in a way similar to Asp.Net MVC? Perhaps at the main web site level?

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  • Installing bitarray in Python 2.6 on Windows

    - by John Fouhy
    I would like to install bitarray in Windows running python 2.6. I have mingw32 installed, and I have C:\Python26\Lib\distutils\distutils.cfg set to: [build] compiler = mingw32 If I type, in a cmd.exe window: C:\Documents and Settings\john\My Documents\bitarray-0.3.5>python setup.py install I get: [normal python messages skipped] C:\MinGW\bin\gcc.exe -mno-cygwin -mdll -O -Wall -IC:\Python26\include -IC:\Python26\PC -c bitarray/_bitarray.c -o build\temp.win32-2.6\Release\bitarray\_bitarray.o bitarray/_bitarray.c:2197: error: initializer element is not constant bitarray/_bitarray.c:2197: error: (near initialization for `BitarrayIter_Type.tp_getattro') bitarray/_bitarray.c:2206: error: initializer element is not constant bitarray/_bitarray.c:2206: error: (near initialization for `BitarrayIter_Type.tp_iter') bitarray/_bitarray.c:2232: error: initializer element is not constant bitarray/_bitarray.c:2232: error: (near initialization for `Bitarraytype.tp_getattro') bitarray/_bitarray.c:2253: error: initializer element is not constant bitarray/_bitarray.c:2253: error: (near initialization for `Bitarraytype.tp_alloc') bitarray/_bitarray.c:2255: error: initializer element is not constant bitarray/_bitarray.c:2255: error: (near initialization for `Bitarraytype.tp_free') error: command 'gcc' failed with exit status 1 Can anyone help?

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  • metaclass multiple inheritance inconsistency

    - by Matt Anderson
    Why is this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyList(list, MyMixin): pass okay, and works as expected: created <class '__main__.MyMixin'> created <class '__main__.MyList'> But this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyObject(object, MyMixin): pass Is not okay, and blows up thusly?: created <class '__main__.MyMixin'> Traceback (most recent call last): File "/tmp/junk.py", line 11, in <module> class MyObject(object, MyMixin): pass TypeError: Error when calling the metaclass bases Cannot create a consistent method resolution order (MRO) for bases object, MyMixin

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  • why egrep's stdout did not go through pipe?

    - by ccfenix
    Hi, i got a weird problem regarding egrep and pipe I tried to filter a stream containing some lines who start with a topic name, such as "TICK:this is a tick message\n" When I try to use egrep to filter it : ./stream_generator | egrep 'TICK' | ./topic_processor It seems that the topic_processor never receives any messages However, when i use the following python script: ./stream_generator | python filter.py --topics TICK | ./topic_processor everything looks to be fine. I guess there need to be a 'flush' mechanism for egrep as well, is this correct? Can anyone here give me a clue? Thanks a million import sys from optparse import OptionParser if __name__ == '__main__': parser = OptionParser() parser.add_option("-m", "--topics", action="store", type="string", dest="topics") (opts, args) = parser.parse_args() topics = opts.topics.split(':') while True: s = sys.stdin.readline() for each in topics: if s[0:4] == each: sys.stdout.write(s) sys.stdout.flush()

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  • Can I use Sikuli as an Jython library in my project?

    - by Yinan
    Sikuli is really cool, but it's working in its buildin Jython environment, the Sikuli IDE. So I m wondering is it possible to import Sikuli as an external library to my Jython library? I saw from Sikuli's website that they have this Python module which provides all Sikuli actions like click and type. Here is the link: http://sikuli.org/documentation.shtml#doc/pythondoc-python.edu.mit.csail.uid.Sikuli.html I have tried importing the skiuli-script.jar and add the skiuli-script/Lib to the PYTHONPATH. Then in my spike.py script, I try to do this: import python.edu.mit.csail.uid.Sikuli capture() #enter to screen capture mode then when execute the script, I got this error: java.lang.UnsatisfiedLinkError: java.lang.UnsatisfiedLinkError: /eclipse_3.4.2/workspace/Jython/src/tmplib/libVDictProxy.jnilib: no suitable image found. Did find: /eclipse_3.4.2/workspace/Jython/src/tmplib/libVDictProxy.jnilib: no matching architecture in universal wrapper I m using Jython 2.2.1 and Mac 10.6.2 (32-bit mode). I have also set to use 32-bit mode first in Java Preference.

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  • TypeError: unbound method make_request() must be called with XX instance, but how?

    - by Dave
    Running the code below I get E TypeError: unbound method make_request() must be called with A instance as first argument (got str instance instead) I dont want to set make_request method as static, I want to call it from an instance of an object. The example http://pytest.org/latest/fixture.html#fixture-function # content of ./test_smtpsimple.py import pytest @pytest.fixture def smtp(): import smtplib return smtplib.SMTP("merlinux.eu") def test_ehlo(smtp): response, msg = smtp.ehlo() assert response == 250 assert "merlinux" in msg assert 0 # for demo purposes My code """ """ import pytest class A(object): """ """ def __init__(self, name ): """ """ self._prop1 = [name] @property def prop1(self): return self._prop1 @prop1.setter def prop1(self, arguments): self._prop1 = arguments def make_request(self, sex): return 'result' def __call__(self): return self @pytest.fixture() def myfixture(): """ """ A('BigDave') return A def test_validateA(myfixture): result = myfixture.make_request('male') assert result =='result'

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  • Ubuntu One Folder Sync Filter

    - by Andy Barlow
    Hi, I am trying to modify the Ubuntu One File syncing python scripts to not including things like .iso's. I have got as far as finding this file: /usr/share/pyshared/ubuntuone/u1sync/constants.py Inside is this piece of code: import re # the name of the directory u1sync uses to keep metadata about a mirror METADATA_DIR_NAME = u".ubuntuone-sync" # filenames to ignore SPECIAL_FILE_RE = re.compile(".*\\.(" "(u1)?partial|part|" "(u1)?conflict(\\.[0-9]+)?)$") How can I edit this last section (regex?) and make it ignore .iso files??? I'm fairly sure this is the place to put it! Pretty sure this is standard python action :) Any help would be appreciated. Thanks kindly. Andy

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  • How to make python_select work for '$>python' command?

    - by Jim
    I installed a couple of pythons in different versions with macports, and the apple python 2.6 is also working. Now I need to run a program which requires MySQLdb package support in python, and this package was installed to the python I installed by macports. The program tells me that there is no MySQLdb installed, so I guess it is the apple python working for that program. I searched for some help and found python_select for switching between pythons. However after the command $>sudo python_select python25 told me that it selected the version "python25" for python, when I type $>python it is still apple python 2.6 that launches. The question is that how can I make python25(the one with MySQLdb) work for the program rather than apple python? Another important thing, the program is NOT a .py file and needs to be compiled before running. So do I need to re-install this program? My Mac OS version is Snow Leopard 10.6. Any answer is appreciated.

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  • Help with Django localization--doesn't seem to be working. Nothing happens

    - by alex
    Can someone help me with Localization? I put {% trans "..." %} in my template, I filled in my django.po after running "makemessages". #: templates/main_content.html:136 msgid "Go to page" msgstr "¦~C~Z¦~C¦¦~B¦¦~L~G¦~Z" #: templates/main_content.html:138 msgid "Page" msgstr "¦~C~Z¦~C¦¦~B¦" #: templates/main_content.html:154 msgid "Next" msgstr "?" Then, I set LANGUAGES={} in my settings.py along with "gettext lambda": gettext = lambda s: s LANGUAGES = ( ('de', gettext('German')), ('en', gettext('English')), ('ja', gettext('Japanese')), ) Of course, I installed the LocaleMiddleware. I also set the request.session['django_language'] = "ja" How do I test that this is working? How do I see japanese on my site!?

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  • Trac & Sqlite PK problem

    - by fampinheiro
    I create my trac enviromnets using a sqlite database, it works very well. Now i want to get some information directly from the database and i'm using C# to do it using System.Data.SQLite. The problem i have is an error in the designer cause the tables don't have primary keys. After get this error i went and noticed that all tables that have more than one primary key defined in the schema were not 'converted' to sqlite, that information is lost. I believe the problem is in sqlite_backend.py but python isn't my speciality and i'm in a hurry so if you can guide me to a quick fix. thank you.

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  • Why am I getting 404 in Django?

    - by alex
    After installing this python Django module: http://code.google.com/p/django-compress/wiki/Installation I am getting 404's in my media static files. This Django module is supposed to "compress" the javascript/css files. That's why I'm getting 404 I guess. The problem is, I don't want this anymore. And when I installed this program, I did "python setup.py install" How do I install it? I just want to revert it back to normal so I don't get any 404 errors.

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