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Does SQLAlchemy have an equivalent of Django's get_or_create?
I want to get an object from the database if it already exists (based on provided parameters) or create it if it does not.
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Reading CSV file and storing values into an array
I am trying to read a *.csv -file.
19 Answers
19
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Using Node.JS, how do I read a JSON file into (server) memory?
I am doing some experimentation with Node.js and would like to read a JSON object, either from a text file or a .js file (which is better??) into memory so that I can access that object quickly from code. I realize that there are things like Mongo, Alfred, etc out there, but that is not what I need...
C++: const reference, before vs after type-specifier
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No difference as const is read right-to-left with respect to the &, so both represent a reference to an immutable Fred instance.
Fred& const would mean the reference itself is immutable, which is redundant; when dealing with const pointers bo...
Create an empty data.frame
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If you already have an existent data frame, let's say df that has the columns you want, then you can just create an empty data frame by removing all the rows:
empty_df = df[FALSE,]
Notice that df still contains the data, but empty_...
Alternative for PHP_excel
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I wrote a very simple class for exporting to "Excel XML" aka SpreadsheetML. It's not quite as convenient for the end user as XSLX (depending on file extension and Excel version, they may get a warning message), but it's a lot easier to work with than XLS or XLSX.
http://github.com/elid...
System.Security.SecurityException when writing to Event Log
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To give Network Service read permission on the EventLog/Security key (as suggested by Firenzi and royrules22) follow instructions from http://geekswithblogs.net/timh/archive/2005/10/05/56029.aspx
Open the Registry Editor:
Select Start then Run
E...
Programming with white text on black background?
...te and font would look a lil' blurry.
Despite all that, personally I find reading on darker background much easier for eyes. I don't think there is a definite answer for "light font on darker background" or vice versa. It will have to depend on personal tastes and habits more importantly. For sure,...
When do you use the “this” keyword? [closed]
...y pleasing code" should look like. By definition, any other programmer who reads your code is going to have a different programing style. That means there is always going to be something you did that the other guy doesn't like, or would have done differently. At some point some guy is going to read ...
What is the difference between SAX and DOM?
I read some articles about the XML parsers and came across SAX and DOM .
10 Answers
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