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When to use os.name, sys.platform, or platform.system?
... system,node,release,version,machine = os.uname()
except AttributeError:
no_os_uname = 1
if no_os_uname or not filter(None, (system, node, release, version, machine)):
# Hmm, no there is either no uname or uname has returned
#'unknowns'... we'll have to poke aro...
Why does git revert complain about a missing -m option?
...I just made. I tried doing this with git revert HEAD but it gave me this error:
3 Answers
...
filter items in a python dictionary where keys contain a specific string
...
Thank you @bkribbs for pointing out the error. I have rectified it now.
– Pulkit
Sep 3 '18 at 0:31
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Why is there no Constant feature in Java?
...to design, implement, and use than mutable classes. They are less prone to error and are more secure.
Bloch then describes how to make your classes immutable, by following 5 simple rules:
Don’t provide any methods that modify the object’s state (i.e., setters, aka mutators)
Ensure that the c...
Example of Named Pipes
...ommand shell as Administrator to get around the default "Access is denied" error:
echo Hello > \\.\pipe\PipeName
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What is the difference between String and string in C#?
... 32x. One of the kernel APIs required a long, and I kept getting overflow errors by using a .NET long for the struct I was passing in; it had to be a .NET int /Int32 to translate to the kernel's definition of a long. So there's still room for confusion! msdn.microsoft.com/en-us/library/windows/de...
Android: How can I get the current foreground activity (from a service)?
...ivity are same before assigning activeActivity with null in order to avoid errors due to intermingled calling order of lifecycle methods of various activities.
– Rahul Tiwari
What is reflection and why is it useful?
... @FernandoGabrieli while it is true that it is easy to create runtime errors with reflection, it is also perfectly possible to use reflection without risking runtime exceptions. As hinted in my answer, a common use of reflection is for libraries or frameworks, which explicitly can't know the st...
How can I clear the SQL Server query cache?
... the regular completion message
"DBCC execution completed. If DBCC printed error messages, contact your system administrator."
DBCC FREEPROCCACHE WITH NO_INFOMSGS;
3. Flush the ad hoc and prepared plan cache for the entire instance
DBCC FREESYSTEMCACHE ('SQL Plans');
4. Flush the ad hoc and prepar...
How do I convert between big-endian and little-endian values in C++?
...ined(BOOST_BIG_ENDIAN)
host_endian = big_endian
#else
#error "unable to determine system endianness"
#endif
};
namespace detail {
template<typename T, size_t sz>
struct swap_bytes
{
inline T operator()(T val)
{
throw std::out_of_range("data size");
...