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Check if OneToOneField is None in Django
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To check if the (OneToOne) relation exists or not, you can use the hasattr function:
if hasattr...
How to correctly close a feature branch in Mercurial?
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One way is to just leave merged feature branches open (and inactive):
$ hg up default
$ hg me...
How can I parse a time string containing milliseconds in it with python?
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Python 2.6 added a new strftime/strptime macro %f, which does microseconds. Not sure if this i...
Mockito. Verify method arguments
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edited Feb 19 '17 at 21:00
Nikunj Undhad
22222 silver badges66 bronze badges
answered Aug 19 '15 at...
R programming: How do I get Euler's number?
For example, how would I go about entering the value e^2 in R?
3 Answers
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
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Define a lambda expression that raises an Exception
... however allow you to conditionally raise exceptions, e.g.:
y = lambda x: 2*x if x < 10 else raise_(Exception('foobar'))
Alternatively you can raise an exception without defining a named function. All you need is a strong stomach (and 2.x for the given code):
type(lambda:0)(type((lambda:0)....
How to hide action bar before activity is created, and then show it again?
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Is it possible to use argsort in descending order?
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If you negate an array, the lowest elements become the highest elements and vice-versa. There...
Error:(1, 0) Plugin with id 'com.android.application' not found
... my first attempt at Android Studio. I installed 0.8.0 and updated to 0.8.2. As soon as a project is created I get the error message:
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