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Static class initializer in PHP
... - especially simple examples that are only meant to be illustrative. Everyone's scenarios and situations are different
– Peter Bailey
Jul 22 '10 at 20:47
17
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How to toggle a value in Python
...;> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^= t # toggle
>&g...
Base64 length calculation?
...
Consider if you have one byte of input. That will produce four characters of output. But only two output characters are needed to encode the input. So two characters will be padding.
– David Schwartz
Nov 14 ...
Why does pycharm propose to change method to static
... not be a @staticmethod, and if you value zero warnings, you can make this one go away two different ways:
Workaround #1
def bar(self):
self.is_not_used()
doing_something_without_self()
def is_not_used(self):
pass
Workaround #2 [Thanks @DavidPärsson]
# noinspection PyMethodMayBeSt...
Code signing certificate for open-source projects?
I want to publish one of my applications as open-source and want to digitally sign the binaries I've created with my own certificate. (Of course, anyone else can just download the code and build it themselves with their own certificate.) I want to do this so anyone can check that this build was made...
No @XmlRootElement generated by JAXB
... methods (and for large schema, there can be hundreds of them) to find the one you need.
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Generics in C#, using type of a variable as parameter [duplicate]
...and pass in your type parameter as the type argument, pushing the decision one level higher up the stack?
If you could give us more information about what you're doing, that would help. Sometimes you may need to use reflection as above, but if you pick the right point to do it, you can make sure yo...
What is causing “Unable to allocate memory for pool” in PHP?
...answer solves the problem. Does the error happen when the file_mask is not one of these values? If I have one of these values and I am getting the error, do I need to switch it to a different one? Which one?
– Jeff
Aug 22 '14 at 13:24
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Best way to structure a tkinter application? [closed]
...nheriting from tk.Toplevel. This gives you all of the same advantages mentioned above -- the windows are atomic, they have their own namespace, and the code is well organized. Plus, it makes it easy to put each into its own module once the code starts to get large.
Finally, you might want to consi...
Joda-Time: what's the difference between Period, Interval and Duration?
... represent different concepts so it is a matter of picking the appropriate one for the job rather than of relative performance. From the documentation with comments added by me in italics:
An interval in Joda-Time represents an interval of time from one millisecond instant to another instant. Bot...