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Use cases for the 'setdefault' dict method
...ition of collections.defaultdict in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education:
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Serializing an object as UTF-8 XML in .NET
Proper object disposal removed for brevity but I'm shocked if this is the simplest way to encode an object as UTF-8 in memory. There has to be an easier way doesn't there?
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Add a prefix to all Flask routes
... to run this application inside of a WSGI container (mod_wsgi, uwsgi, gunicorn, etc); you need to actually mount, at that prefix the application as a sub-part of that WSGI container (anything that speaks WSGI will do) and to set your APPLICATION_ROOT config value to your prefix:
app.config["APPLICA...
Why is $$ returning the same id as the parent process?
... misleading (at least it was to me), it's actually the "top level" shell. For instance : echo $$; (echo $$; (echo $$)) echoes the same pid three times
– Martin Bouladour
Jul 20 '17 at 9:59
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NodeJS: Saving a base64-encoded image to disk
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I think you are converting the data a bit more than you need to. Once you create the buffer with the proper encoding, you just need to write the buffer to the file.
var base64Data = req.rawBody.replace(/^data:image\/png;base64,/, "");
require("fs").writeFile("out.pn...
Anonymous method in Invoke call
...to tell the compiler what type of delegate to create ; MethodInvoker (2.0) or Action (3.5) are common choices (note they have the same signature); like so:
control.Invoke((MethodInvoker) delegate {this.Text = "Hi";});
If you need to pass in parameters, then "captured variables" are the way:
stri...
See what process is using a file in Mac OS X
...ssible? I know that I can see the list of open processes in activity monitor but I think it's happening to quickly for me to see it. The reason for this is I'm using a framework and I think the system version of the framework is being used instead of the debug version and I'd like to see which pro...
SQLite Reset Primary Key Field
...TE_SEQUENCE table is created and
initialized automatically whenever a
normal table that contains an
AUTOINCREMENT column is created. The
content of the SQLITE_SEQUENCE table
can be modified using ordinary UPDATE,
INSERT, and DELETE statements. But
making modifications to this table
w...
How to get thread id from a thread pool?
...the OP requests "something like 'thread #3 of 5".
– CorayThan
Sep 1 '15 at 19:20
Note, an example output of getId() is...
Internet Explorer's CSS rules limits
I've read conflicting information regarding Internet Explorer's silly CSS limits. I am (think I am) understanding that you can only have 31 <style> and <link> tags (combined), and that each sheet can have up to 31 @import -s (so 31 <link> -s, each to 31 @import -s is fine, a...