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How can I pass a list as a command-line argument with argparse?
... 'append' setting of the action option (depending on how you want the user interface to behave).
nargs
parser.add_argument('-l','--list', nargs='+', help='<Required> Set flag', required=True)
# Use like:
# python arg.py -l 1234 2345 3456 4567
nargs='+' takes 1 or more arguments, nargs='*' ...
Getting the current page
...no UIScrollView property for the current page. You can calculate it with:
int page = scrollView.contentOffset.x / scrollView.frame.size.width;
If you want to round up or down to the nearest page, use:
CGFloat width = scrollView.frame.size.width;
NSInteger page = (scrollView.contentOffset.x + (0....
Generating v5 UUID. What is name and namespace?
...UUIDs
An SHA1 hash outputs 160 bits (20 bytes); the result of the hash is converted into a UUID.
With the 20-byte hash from SHA1:
SHA1 Digest: 74738ff5 5367 e958 9aee 98fffdcd1876 94028007
UUID (v5): 74738ff5-5367-5958-9aee-98fffdcd1876
^_low nibble is set to 5, t...
Calculate a Running Total in SQL Server
...ee: MAXDOP):
Full working sample:
drop table #t
create table #t ( ord int primary key, total int, running_total int)
insert #t(ord,total) values (2,20)
-- notice the malicious re-ordering
insert #t(ord,total) values (1,10)
insert #t(ord,total) values (3,10)
insert #t(ord,total) values (4,1...
Structure padding and packing
...
Padding aligns structure members to "natural" address boundaries - say, int members would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by...
android ellipsize multiline textview
...s TextView {
private static final String ELLIPSIS = "...";
public interface EllipsizeListener {
void ellipsizeStateChanged(boolean ellipsized);
}
private final List<EllipsizeListener> ellipsizeListeners = new ArrayList<EllipsizeListener>();
private boolean i...
What is the format specifier for unsigned short int?
...u , x , X , or n conversion
specifier applies to an argument with type pointer to short or
unsigned short.
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How set maximum date in datepicker dialog in android?
... @Override
public void onDateSet(DatePicker arg0, int year, int month, int day_of_month) {
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, (month+1));
calendar.set(Calendar.DAY_OF_MONTH, ...
Get all Attributes from a HTML element with Javascript/jQuery
...
Use .slice to convert the attributes property to Array
The attributes property of DOM nodes is a NamedNodeMap, which is an Array-like object.
An Array-like object is an object which has a length property and whose property names are enum...
Working with Enums in android
... 0),
FEMALE("Female", 1);
private String stringValue;
private int intValue;
private Gender(String toString, int value) {
stringValue = toString;
intValue = value;
}
@Override
public String toString() {
return stringValue;
}
}
Then to use th...