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What's the canonical way to check for type in Python?

...ation. One more note: in this case, if you're using Python 2, you may actually want to use: if isinstance(o, basestring): because this will also catch Unicode strings (unicode is not a subclass of str; both str and unicode are subclasses of basestring). Note that basestring no longer exists in P...
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How to check if a variable exists in a FreeMarker template?

...ich values are supplied when the template is processed. I want to conditionally include part of the template if the userName variable is supplied, something like: ...
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Should I use the Reply-To header when sending emails as a service to others?

Suppose we have an application that acts as a middleman, allowing Company A to send reports to their customers. 3 Answers ...
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Assign multiple columns using := in data.table, by group

...t(dim(get(objectName))),by=objectNa‌​me]. Trouble is that as.list has call overhead and also copies the small vector. If efficiency is a problem as number of groups rises then please let us know. – Matt Dowle May 21 '14 at 11:49 ...
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What is the difference between object keys with quotes and without quotes?

...xchange format does require double quotes around identifiers (and does not allow single quotes). share | improve this answer | follow | ...
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Best way to check if a URL is valid

...mal text. The function or solution, that I'm looking for, should recognize all links formats including the ones with GET parameters. ...
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Django URL Redirect

... You can try the Class Based View called RedirectView from django.views.generic.base import RedirectView urlpatterns = patterns('', url(r'^$', 'macmonster.views.home'), #url(r'^macmon_home$', 'macmonster.views.home'), url(r'^macmon_output/$', 'ma...
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Update parent scope variable in AngularJS

... Sorry I forgot about this question. I have accepted it because eventually I did manage to get it working with the help of this answer. – Malcr001 Jun 13 '13 at 22:46 ...
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Preferred way to create a Scala list

...do so with a tail-recursive function, foldLeft, or something else is not really relevant. If you get the elements in the same order you use them, then a ListBuffer is most likely a preferable choice, if performance is critical. But, if you are not on a critical path and the input is low enough, yo...
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How to install grunt and how to build script with it

Hi I'm trying to install Grunt on Windows 7 64 bit. I have installed Grunt using commands 4 Answers ...