Dreamer, Entrepreneur, Full Stack Developer and an Eternal Student
If you are getting the following error when installing python packages using PIP or easy_install, don’t worry. You have come to the right place for solution. First make sure you have developer tools installed. You can install them by executing the following command in terminal xcode-select –install The clang errors are due to changes introduced in
Though we can specify order explicitly in queries like below Posts.objects.order_by(‘published’) it is repetitive and most of the times we will want to order by a particular field. We can specify the order in the models like this class Post(models.Model): title = models.CharField(max_length=140) content = models.TextField() published = models.DateTimeField() def __unicode__(self): return self.title class Meta:
Django allows method calls inside template system. Though this is an useful feature, some of the methods will have side effects. Mostly the ones that alter data. Say, for instance, you have a UserAccount object that has a delete() method. If a template includes something like {{ account.delete }}, where account is a UserAccount object,
$ and ^ are regular expression characters that have a special meaning: the caret means “require that the pattern matches the start of the string,” and the dollar sign means “require that the pattern matches the end of the string.” For example consider the following url pattern urlpatterns = patterns(”, url(r’^hello/$’, hello), ) Without the
I got this error while trying to start mongodb on amazon ec2. Running this command in the terminal solved the problem. export LC_ALL=C I don’t have any idea about what it means at this time except that it sets the terminal to display all languages. If you can explain what actually it does, please drop
Django traceback is a very helpful tool in Django development. It saves us from the boring tasking of writing print statements to track variables. Traceback doesn’t kick when there is no error. There may be no coding errors but there is a flaw in our application logic which we want to debug. In such cases
Python site packages are located at Library/Python/2.7/site-packages
I got the following error while trying to create a super user from shell for django1.4. File “/Library/Python/2.7/site-packages/django/contrib/auth/management/__init__.py”, line 85, in get_system_username return getpass.getuser().decode(locale.getdefaultlocale()[1]) TypeError: decode() argument 1 must be string, not None This problem was rectified by running this command in terminal before adding the user export LANG=”en_US.UTF-8″ I’m guessing this character encoding