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Difference between Django's annotate and aggregate methods?
Django's QuerySet has two methods, annotate and aggregate . The documentation says that:
3 Answers
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Positions fixed doesn't work when using -webkit-transform
I am using -webkit-transform (and -moz-transform / -o-transform) to rotate a div. Also have position fixed added so the div scrols down with the user.
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Splitting a string into chunks of a certain size
Suppose I had a string:
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How should I escape commas and speech marks in CSV files so they work in Excel?
I'm generating a CSV file (delimited by commas rather than tabs). My users will most likely open the CSV file in Excel by double clicking it. My data may contain commas and speech marks, so I'm escaping those as follows.
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Drawing a line/path on Google Maps
I've been busy for a long time finding out how to draw a line between two (GPS) points on the map in HelloMapView but with no luck.
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is of a type that is invalid for use as a key column in an index
I have an error at
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Razor View Engine : An expression tree may not contain a dynamic operation
I have a model similar to this:
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What are commit-ish and tree-ish in Git?
What are specific examples of commit-ish and tree-ish in Git?
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How to write DataFrame to postgres table?
There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine.
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Autoreload of modules in IPython [duplicate]
Is there a way to have IPython automatically reload all changed code? Either before each line is executed in the shell or failing that when it is specifically requested to. I'm doing a lot of exploratory programming using IPython and SciPy and it's quite a pain to have to manually reload each module...