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How to serialize SqlAlchemy result to JSON?
...turn fields
return json.JSONEncoder.default(self, obj)
and then convert to JSON using:
c = YourAlchemyClass()
print json.dumps(c, cls=AlchemyEncoder)
It will ignore fields that are not encodable (set them to 'None').
It doesn't auto-expand relations (since this could lead to self-refe...
Add single element to array in numpy
...allocate the array (if the total size is known) or to append to a list and convert to an array afterward.
Using np.append:
b = np.array([0])
for k in range(int(10e4)):
b = np.append(b, k)
1.2 s ± 16.1 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
Using python list converting to arr...
ImportError: No module named Crypto.Cipher
... odd, but this fixed the issue on OS X Mavericks for me. I needed sudo for system wide libs.
– Paul
May 19 '14 at 9:09
...
error C2664:...No user-defined-conversion operator available that can ...
... >(unsigned int,const int &,
const class std::allocator<int> &)' : cannot convert parameter 1 from 'class std::deque<int,class std::allocator<int> >::iterator' to 'unsigned int'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called...
How to check if a String contains another String in a case insensitive manner in Java?
...t methods are.
I compare 5 methods.
Our containsIgnoreCase() method.
By converting both strings to lower-case and call String.contains().
By converting source string to lower-case and call String.contains() with the pre-cached, lower-cased substring. This solution is already not as flexible becau...
to_string is not a member of std, says g++ (mingw)
...y be an issue with your compiler version.
Try using the following code to convert a long to std::string:
#include <sstream>
#include <string>
#include <iostream>
int main() {
std::ostringstream ss;
long num = 123456;
ss << num;
std::cout << ss.str() &...
Convert Newtonsoft.Json.Linq.JArray to a list of specific object type
...leEnumItem>>() method. It will return what you need.
Documentation: Convert JSON to a Type
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“Comparison method violates its general contract!”
...> it, IPairIteratorCallback<T> callback) {
List<T> list = Convert.toMinimumArrayList(new Iterable<T>() {
@Override
public Iterator<T> iterator() {
return it;
}
});
for (int outerIndex = 0; outerIndex < list.size() - 1; outerIndex++) {
for ...
How to convert a string of numbers to an array of numbers?
...
You can use Array.map to convert each element into a number.
var a = "1,2,3,4";
var b = a.split(',').map(function(item) {
return parseInt(item, 10);
});
Check the Docs
Or more elegantly as pointed out by User: thg435
var b = a.split(',')....
Saving timestamp in mysql table using php
...y, a timestamp is only a representation of a date, and vice versa. You can convert from timestamp to date with the function jimy told you, and the other way with strtotime. edit: btw, timestamp only covers a range of all possible dates (1970-01-01 to xx-xx-2032 I think)
– Carlo...