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Generating file to download with Django
...rigger a download you need to set Content-Disposition header:
from django.http import HttpResponse
from wsgiref.util import FileWrapper
# generate the file
response = HttpResponse(FileWrapper(myfile.getvalue()), content_type='application/zip')
response['Content-Disposition'] = 'attachment; filenam...
What does “S3 methods” mean in R?
...me recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not know the exact definition of S3 methods/objects.
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PHP: If internet explorer 6, 7, 8 , or 9
...for IE8 and below:
if (preg_match('/MSIE\s(?P<v>\d+)/i', @$_SERVER['HTTP_USER_AGENT'], $B) && $B['v'] <= 8) {
// Browsers IE 8 and below
} else {
// All other browsers
}
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Maximum number of threads per process in Linux?
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*Replace new value with the value you want to put as limit.
References:
http://dustycodes.wordpress.com/2012/02/09/increasing-number-of-threads-per-process/
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Escape a string for a sed replace pattern
...and allows you to use other characters instead of / as separator:
sed 's#"http://www\.fubar\.com"#URL_FUBAR#g'
The double quotes are not a problem.
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How to match any non white space character except a particular one?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
... #python3 don't have this attribute.
#not suggest even in python2 #see:http://stackoverflow.com/questions/3828723/why-should-we-not-use-sys-setdefaultencodingutf-8-in-a-py-script
#2.overwrite /usr/lib/python2.7/sitecustomize.py or (sitecustomize.py and PYTHONPATH=".:$PYTHONPATH" python)
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App Inventor 2 扩展 · App Inventor 2 中文网
... are at: MIT App Inventor Extension
source code for sample extensions at: http://appinventor.mit.edu/extensions
Appinventor help: https://community.appinventor.mit.edu/
Note: App Inventor extensions are supported only on Android devices running API Level 8 (Android system 2.2 Froyo) and above. ...
Cost of len() function
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Regex lookahead, lookbehind and atomic groups
...n succeed as s immediately follows in foots, and stop.
Some resources
http://www.regular-expressions.info/lookaround.html
http://www.rexegg.com/regex-lookarounds.html
Online testers
https://regex101.com
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