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Efficient way to apply multiple filters to pandas DataFrame or Series
... in a list, and then passing data[conjunction(conditions_list)] but get an error ValueError: Item wrong length 5 instead of 37. Also tried data[conjunction(*conditions_list)] but I get a different result than data[conjunction(c_1, c_2, c_3, ... c_n )], not sure what is going on.
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In C#, What is a monad?
...lue of -1 indicates failure, but there is no real way to abstract out this error checking, even if you have lots of API-calls that you need to combine in this fashion. This is basically just another monad that combines the function calls by the rule "if the function on the left returned -1, do retur...
PHP foreach change original array values
...($_POST[$field['name']]) <= 0) {
$fields[$key]['value'] = "Some error";
}
}
So basically use $field when you need the values, and $fields[$key] when you need to change the data.
share
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How to fix corrupted git repository?
...m first
# and re-clone them after (with `git submodule update --init`)
#
# Error codes:
# 1: If a url is not supplied, and one cannot be read from .git/config
# 4: If the url cannot be reached
# 5: If a git submodule is detected
if [[ "$(find -name .git -not -path ./.git | wc -l)" -gt 0 ]] ;
then
...
MySQL Removing Some Foreign keys
... it can be necessary to drop the KEY itself at some point. If you have any error message to create another index like the last one, I mean with the same name, it would be useful dropping everything related to that index.
ALTER TABLE your_table_with_fk
drop FOREIGN KEY name_of_your_fk_from_show_cr...
How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
...name is used as the search term (which happens to be quite often now). The error received (thanks Fiddler!) is:
9 Answers
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Polymorphism in C++
...we'd need explicit casts, type traits and/or policy classes, some verbose, error-prone mess like:
template <typename Amount, typename Policy>
void f()
{
Amount x = Policy::thirteen;
x /= static_cast<Amount>(2);
std::cout << traits<Amount>::to_double(x) * 1.1;
}
...
Creating a JSON response using Django and Python
...go.http import HttpResponse
response_data = {}
response_data['result'] = 'error'
response_data['message'] = 'Some error message'
Pre-Django 1.7 you'd return it like this:
return HttpResponse(json.dumps(response_data), content_type="application/json")
For Django 1.7+, use JsonResponse as shown ...
Android 1.6: “android.view.WindowManager$BadTokenException: Unable to add window — token null is not
... another dialog and just having "AlertDialog.Builder(this);" was giving an error. Thanks!
– EHarpham
Oct 20 '12 at 12:16
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Get current clipboard content? [closed]
...nsole.log('Pasted content: ', text);
})
.catch(err => {
console.error('Failed to read clipboard contents: ', err);
});
Or with async syntax:
const text = await navigator.clipboard.readText();
Keep in mind that this will prompt the user with a permission request dialog box, so no funny...