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How to pass a user defined argument in scrapy spider
... every time you want to code a scrapy's spider, you could just specify the parameters as before:
scrapy crawl myspider -a parameter1=value1 -a parameter2=value2
and in your spider code you can just use them as spider arguments:
class MySpider(Spider):
name = 'myspider'
...
def parse(...
How to store int[] array in application Settings
... <Value Profile="(Default)" />
</Setting>
Change the "Type" param from System.String to System.Int32[]. Now this section will look like this:
<Setting Name="SomeTestSetting" Type="System.Int32[]" Scope="User">
<Value Profile="(Default)" />
</Setting>
Now save ch...
Where does PostgreSQL store the database?
...ectory is, use this query.
show data_directory;
To see all the run-time parameters, use
show all;
You can create tablespaces to store database objects in other parts of the filesystem. To see tablespaces, which might not be in that data directory, use this query.
SELECT * FROM pg_tablespace;
...
How to convert a Drawable to a Bitmap?
...
What happens if drawable param is null?
– hrules6872
Feb 4 '16 at 14:48
1
...
How to quickly clear a JavaScript Object?
...arObjectValues = (objToClear) => {
Object.keys(objToClear).forEach((param) => {
if ( (objToClear[param]).toString() === "[object Object]" ) {
clearObjectValues(objToClear[param]);
} else {
objToClear[param] = undefined;
}
})
return ob...
Use of class definitions inside a method in Java
...
public void run() {
classWithMethodToFire.doSomething( parameter );
}
});
If you needed to create a bunch of these and do something with them, you might change this to
//within some method
class myFirstRunnableClass implements Runnable {
public void run() ...
NUnit's Assert.Equals throws exception “Assert.Equals should not be used for assertions”
...ere is no mistake by calling this function.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
[EditorBrowsable(EditorBrowsableState.Never)]
public static new bool Equals(object a, object b)
{
// TODO: This should probably be InvalidOper...
Reading Excel files from C#
...me exists in the Schema Table
/// </summary>
/// <param name="sheetName">Sheet name to be verified</param>
/// <param name="dtSchema">schema table </param>
private static bool CheckIfSheetNameExists(string sheetName, DataTable dtSchema)
...
Convert floats to ints in Pandas?
...o df.a = df.a.astype(float) ? Does this make a copy (not sure how the copy param to astype() is used) ? Anyway to update the type "in place" ?
– Mr_and_Mrs_D
Dec 8 '17 at 18:39
1
...
setTimeout / clearTimeout problems
... if(clearfunc) {
clearfunc();
}
}
}
The element parameter is the one which you hold. The func parameter fires when it holds for a number of milliseconds specified by the parameter hold. The clearfunc param is optional and if it is given, it will get fired if the user lets ...