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python: Change the scripts working directory to the script's own directory
... into whatever directory your Python script is located, even if you don't know what directory that will be when you're writing your script. To do this, you can use the os.path functions:
import os
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)
This takes th...
PHP foreach change original array values
...ference (&) is ... controversial. I recommend not using it unless you know why you need it and test the results.
I would recommend doing the following:
foreach ($fields as $key => $field) {
if ($field['required'] && strlen($_POST[$field['name']]) <= 0) {
$fields[$key]...
Use Mockito to mock some methods but not others
...mock.getSomething();
when(mock.getSomething()).thenReturn(fakeValue);
// now fakeValue is returned
value = mock.getSomething();
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When is TCP option SO_LINGER (0) required?
...erstand the formal meaning of the option. In some legacy code I'm handling now, the option is used. The customer complains about RST as response to FIN from its side on connection close from its side.
...
Adding an identity to an existing column
...archar(10)
);
ALTER TABLE Test SWITCH TO Test2;
-- drop the original (now empty) table
DROP TABLE Test;
-- rename new table to old table's name
EXEC sp_rename 'Test2','Test';
-- update the identity seed
DBCC CHECKIDENT('Test');
-- see same records
SELECT * FROM Test;
This is obviou...
Why is SELECT * considered harmful?
...tables, both of which contain a column called "ID". How would a consumer know which was which? SELECT * can also confuse views (at least in some versions SQL Server) when underlying table structures change -- the view is not rebuilt, and the data which comes back can be nonsense. And the worst pa...
throw new std::exception vs throw std::exception
...m not really sure what you're asking about but it sounds like you want to know about the storage and/or lifetime of the exception object which might be answered here. If not you might be better off asking a separate question.
– CB Bailey
Apr 1 '13 at 17:09
...
How do I append text to a file?
...
I didn't know cat could be used like this! Like writing a journal entry. Also didn't know about what ctrl-d does. Thank you!
– houallet
Aug 15 '18 at 1:10
...
Using AES encryption in C#
...e);` . The reason for this is because in Encrypt you converted ToBase64 so now you need to ConvertFromBase64String in Decrypt, otherwise you get invalid length error.
– Euthyphro
Jan 6 '17 at 21:34
...
Looping in a spiral
...wered Oct 12 '09 at 15:29
Tom J NowellTom J Nowell
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