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Python argparse: default value or specified value
...ample 2
Namespace(example=2)
nargs='?' means 0-or-1 arguments
const=1 sets the default when there are 0 arguments
type=int converts the argument to int
If you want test.py to set example to 1 even if no --example is specified, then include default=1. That is, with
parser.add_argument('--ex...
How to add target=“_blank” to JavaScript window.location?
The following sets the target to _blank :
4 Answers
4
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Forward function declarations in a Bash or a Shell script?
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I prefer arguments. Barring that, I'll set global variables in main or in a function right after main (e.g., setup or parseArguments). I avoid having global variables set above main -- code should not go outside of main.
– John Kugelman
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How to retrieve Request Payload
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Also you can setup extJs writer with encode: true and it will send data regularly (and, hence, you will be able to retrieve data via $_POST and $_GET).
... the values will be sent as part of the request parameters as
opposed to a r...
How do I show a MySQL warning that just happened?
...
You can also set the command line to always display warnings after a query using \W
You can switch them off again with \w
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impro...
Getting thread id of current method call
...Thread]];
NSArray *firstSplit = [raw componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"{"]];
if ([firstSplit count] > 1) {
NSArray *secondSplit = [firstSplit[1] componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharac...
How do I make a textarea an ACE editor?
...r textarea = $('textarea[name="description"]').hide();
editor.getSession().setValue(textarea.val());
editor.getSession().on('change', function(){
textarea.val(editor.getSession().getValue());
});
or just call
textarea.val(editor.getSession().getValue());
only when you submit the form with the...
How do I grep for all non-ASCII characters?
...ill highlight non-ascii chars in red.
In some systems, depending on your settings, the above will not work, so you can grep by the inverse
grep --color='auto' -P -n "[^\x00-\x7F]" file.xml
Note also, that the important bit is the -P flag which equates to --perl-regexp: so it will interpret your...
Xcode variables
... I love the way that Xcode refuses to show that page if you type in "build settings" in a search box - you get the OTHER kind of build setting, with no reference to these variables. Ditto if you put "build variables". Someone should teach Apple how to write a search algorithm :)
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@Column(s) not allowed on a @ManyToOne property
I have a JPA entity with a property set as
4 Answers
4
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