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python-pandas and databases like mysql
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frame_query is now deprecated. Now use pd.read_sql(query, db) instead.
– Robert Smith
Apr 24 '15 at 22:43
add a com...
How can I add reflection to a C++ application?
... struct fields
{
static const int n = T::fields_n;
};
};
Now to iterate over the fields we use the visitor pattern. We create an MPL range from 0 to the number of fields, and access the field data at that index. Then it passes the field data on to the user-provided visitor:
struct...
What is ASP.NET Identity's IUserSecurityStampStore interface?
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The UseCookieAuthentication is deprecated by now. I managed to configure it using services.Configure<SecurityStampValidatorOptions>(o => o.ValidationInterval = TimeSpan.FromSeconds(10));.
– riezebosch
Sep 6 '17 at 7:07
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Overriding fields or properties in subclasses
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Can we say this now not correct based on this msdn.microsoft.com/en-us/library/9fkccyh4.aspx The msdn article shows you can override properties
– codingbiz
Sep 2 '14 at 23:17
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How to check whether an object is a date?
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Out of interest do you know the reason for this failing when passing across frame boundaries?
– Simon Lieschke
Apr 12 '10 at 6:03
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Pushing empty commits to remote
I have pushed one commit to remote but now I realized that the commit message is not correct. I would like to change the commit message but AFAIK it is not possible. So i decided to create empty commit with correct message:
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Get generic type of java.util.List
...ut if they're inside the same scope of the class/method where you need to know about them, then there's no point of knowing them, because you already have declared them yourself.
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improve thi...
Tools for JPEG optimization? [closed]
Do you know of any tools (preferrably command-line) to automatically and losslessly optimize JPEGs that I could integrate into our build environment? For PNGs I'm currently using PNGOUT , and it generally saves around 40% bandwidth/image size.
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How to switch position of two items in a Python list?
...The simple Python swap looks like this:
foo[i], foo[j] = foo[j], foo[i]
Now all you need to do is figure what i is, and that can easily be done with index:
i = foo.index("password2")
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im...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
...ults, but we've ascertained that it's at least one-quarter of all inputs.
Now let's look at a fixed-width (i.e. non-bignum) integer power function. For what portion inputs does it not simply overflow? To maximize the number of meaningful input pairs, the base should be signed and the exponent uns...