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Calling a class function inside of __init__

... Call the function in this way: self.parse_file() You also need to define your parse_file() function like this: def parse_file(self): The parse_file method has to be bound to an object upon calling it (because it's not a ...
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Can PostgreSQL index array columns?

... to this question in the documentation. If a column is an array type, will all the entered values be individually indexed? ...
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Converting between java.time.LocalDateTime and java.util.Date

...Date instance has no concept of time-zone. This might seem strange if you call toString() on a java.util.Date, because the toString is relative to a time-zone. However that method actually uses Java's default time-zone on the fly to provide the string. The time-zone is not part of the actual state o...
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List vs List

...ype of List<Object>? - see, for example, stackoverflow.com/questions/3246137/… – Tom Hawtin - tackline Mar 21 '12 at 18:29 2 ...
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Timeout command on Mac OS X?

... You can use brew install coreutils And then whenever you need timeout, use gtimeout ..instead. To explain why here's a snippet from the Homebrew Caveats section: Caveats All commands have been installed with the prefix 'g'. If ...
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DateTime.ToString() format that can be used in a filename or extension?

...our file name. Here i have provided example string fileName = "fileName_" + DateTime.Now.ToString("MM-dd-yyyy_hh-mm-ss-tt") + ".pdf"; OR If you don't prefer to use symbols you can try this also., string fileName = "fileName_" + DateTime.Now.ToString("MMddyyyyhhmmsstt") + ".pdf"; Hope this ...
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what is the difference between GROUP BY and ORDER BY in sql

... returned. GROUP BY will aggregate records by the specified columns which allows you to perform aggregation functions on non-grouped columns (such as SUM, COUNT, AVG, etc). share | improve this ans...
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Django dynamic model fields

...rks) This solution is based on Entity Attribute Value data model, essentially, it uses several tables to store dynamic attributes of objects. Great parts about this solution is that it: uses several pure and simple Django models to represent dynamic fields, which makes it simple to understand an...
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Expanding tuples into arguments

...rtelli 724k148148 gold badges11251125 silver badges13241324 bronze badges 8 ...
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Why doesn't c++ have &&= or ||= for booleans?

... all the more reason to have &&= in my opinion. =P – Kache Mar 21 '10 at 20:19 4 ...