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How can I selectively escape percent (%) in Python strings?
...cognize sequences like %d (and other letters that can be used), but also %(xxx)s etc.
Similar problem can be observed with the new formats -- the text can contain curly braces.
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Django in / not in query
... Depending on the context, if the filter is like "having count(xx)==yy" it's more than 100x faster to use annotate() (timeit gave me 1.0497902309998608 vs 0.00514069400014705)
– Olivier Pons
Apr 11 '19 at 8:18
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HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK
...m to curl.cainfo.
Since PHP 5.3.7 you could do:
download https://curl.haxx.se/ca/cacert.pem and save it somewhere.
update php.ini -- add curl.cainfo = "PATH_TO/cacert.pem"
Otherwise you will need to do the following for every cURL resource:
curl_setopt ($ch, CURLOPT_CAINFO, "PATH_TO/cacert.pem...
Issue pushing new code in Github
...rejected. remote: remote: refs/heads/master: ...: expected committer name xxx but found yyy. I do a git config --global user.email yyy and it still doesnt recognize. Can't force anything.!!!
– Baruch Atta
Apr 1 '19 at 17:48
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Avoid trailing zeroes in printf()
... -d;
sz = (d >= 0) ? 0 : 1;
// Add one for each whole digit (0.xx special case).
if (d2 < 1) sz++;
while (d2 >= 1) { d2 /= 10.0; sz++; }
// Adjust for decimal point and fractionals.
sz += 1 + n;
// Create format string then use it.
sprintf (s, "%*.*f", ...
How to install an apk on the emulator in Android Studio?
...k/platform-tools and use adb from there to install apk. Like:
adb install xxx.apk
It will install it on running emulator.
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How to duplicate a whole line in Vim?
...+,$g/^\s*class\s\+\i\+/t. will copy all subsequent lines of the form class xxx right after the cursor.
Reference: :help range, :help :t, :help :g, :help :m and :help :v
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Interop type cannot be embedded
...ot allowed
http://blogs.msdn.com/mshneer/archive/2009/12/07/interop-type-xxx-cannot-be-embedded-use-the-applicable-interface-instead.aspx
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How can I make Visual Studio's build be very verbose?
...and and build it from a dos console msdn.microsoft.com/en-us/library/txcwa2xx(VS.80).aspx. Last time I did something similar (but I used CMake to generate the nmake makefiles) all the commands were printed out into the console display.
– javier-sanz
Jul 31 '09 ...
getting the screen density programmatically in android?
...screen size. So the metrics.densityDpi property will be one of the DENSITY_xxx constants (120, 160, 213, 240, 320, 480 or 640 dpi).
If you need the actual lcd pixel density (perhaps for an OpenGL app) you can get it from the metrics.xdpi and metrics.ydpi properties for horizontal and vertical densi...