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Traits vs. interfaces
...nstruct(Request $req, Response $resp, ApcCacher $cacher=NULL) {
$this->req = $req;
$this->resp = $resp;
$this->cacher = $cacher;
$this->buildResponse();
}
public function buildResponse() {
if (NULL !== $this->cacher && $response = $this->cache...
How do I calculate square root in Python?
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/ performs an integer division in Python 2:
>>> 1/2
0
If one of the numbers is a float, it works as expected:
>>> 1.0/2
0.5
>>> 16**(1.0/2)
4.0
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Append a NumPy array to a NumPy array
...
Hi.. when i try this.. I get this >>> np.append(M,a) array([ 1., 2., 3.]) >>> np.append(M,b) array([ 2., 3., 4.]) >>> M array([], dtype=float64) I was hoping M to be a 2D array??
– frazman
M...
Is it possible to embed animated GIFs in PDFs?
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Insert the MOV into the PDF (with Adobe InDesign (make sure to set Object> Interactive> film options > Embed in PDF) - It should work with Adobe Acrobat Pro DC too: see link
Save the PDF.
See this link (German)
s...
Pandas groupby: How to get a union of strings
...data. So if you want a set, apply set. If you want a list, apply list.
>>> d
A B
0 1 This
1 2 is
2 3 a
3 4 random
4 1 string
5 2 !
>>> d.groupby('A')['B'].apply(list)
A
1 [This, string]
2 [is, !]
3 [a]
4 [r...
Displaying Windows command prompt output and redirecting it to a file
... to see all the output, don't forget to redirect STDERR to STDOUT with 2>&1, for example node 2>&1 | tee debug_log.txt
– Zhe Hu
Jul 24 '17 at 13:35
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How can I stop a running MySQL query?
...
mysql>show processlist;
mysql> kill "number from first col";
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How can I use a file in a command and redirect output to the same file without truncating it?
...!/bin/sh
tmpfile=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile}
like that, consider using mktemp to create the tmpfile but note that it's not POSIX.
...
Connect to Amazon EC2 file directory using Filezilla and SFTP
...P, Video Tutorial
Summary of above video tutorial:
Edit (Preferences) > Settings > Connection > SFTP, Click "Add key file”
Browse to the location of your .pem file and select it.
A message box will appear asking your permission to convert the file into ppk format. Click Yes, then gi...
How can I check the extension of a file?
....FLAC',
'myfile.Mov','myfile.fLaC']
for f in flist:
print "{} ==> {}".format(f,checkext(f))
Output:
myfile.mp3 ==> mp3
myfile.MP3 ==> mp3
myfile.mP3 ==> mp3
myfile.mp4 ==> skip
myfile.flack ==> skip
myfile.FLAC ==> flac
myfile.Mov ==> skip
myfile.fLaC ==> fla...