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check if variable is dataframe
...heritance (see What are the differences between type() and isinstance()?). For example, it will tell you if a variable is a string (either str or unicode), because they derive from basestring)
if isinstance(obj, basestring):
i_am_string(obj)
Specifically for pandas DataFrame objects:
import ...
AngularJS ui-router login authentication
...and upon request, it can resolve an object that represents the essential information about the user's identity. This can be whatever you need, but the essentials would be a display name, a username, possibly an email, and the roles a user belongs to (if this applies to your app). Principal also has ...
Difference between JSON.stringify and JSON.parse
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Can also be used a simple object copy for object key value pairings.
– hunterc
Nov 21 '13 at 20:36
4
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JSON datetime between Python and JavaScript
I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
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Make a borderless form movable?
Is there a way to make a form that has no border (FormBorderStyle is set to "none") movable when the mouse is clicked down on the form just as if there was a border?
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How should I call 3 functions in order to execute them one after the other?
...ed.
Asynchronous Functions
Asynchronous function, however, will not wait for each other. Let us look at the same code sample we had above, this time assuming that the functions are asynchronous
doSomething();
doSomethingElse();
doSomethingUsefulThisTime();
The functions will be initialized in o...
When should I use ugettext_lazy?
I have a question about using ugettext and ugettext_lazy for translations.
I learned that in models I should use ugettext_lazy , while in views ugettext.
But are there any other places, where I should use ugettext_lazy too? What about form definitions?
Are there any performance diffrences betwe...
Force CloudFront distribution/file update
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For those of you using the API to do the invalidation, approximately how long is it taking for the invalidation to take effect?
– ill_always_be_a_warriors
Jan 16 '13 at 0:57
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Can iterators be reset in Python?
...gesting itertools.tee, but that's ignoring one crucial warning in the docs for it:
This itertool may require significant
auxiliary storage (depending on how
much temporary data needs to be
stored). In general, if one iterator
uses most or all of the data before
another iterator starts,...
Why use prefixes on member variables in C++ classes
A lot of C++ code uses syntactical conventions for marking up member variables. Common examples include
29 Answers
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