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Replacing Pandas or Numpy Nan with a None to use with MysqlDB

...n use where, it's worth noting that you can do this natively in pandas: df1 = df.where(pd.notnull(df), None) Note: this changes the dtype of all columns to object. Example: In [1]: df = pd.DataFrame([1, np.nan]) In [2]: df Out[2]: 0 0 1 1 NaN In [3]: df1 = df.where(pd.notnull(df), None...
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Elegant setup of Python logging in Django

...logging. (Note: NullHandler is already in the logging package for Python 3.1, and will be in Python 2.7.) So: logger = logging.getLogger(__name__) logger.addHandler(someutils.null_handler) This is done to ensure that your modules play nicely in a site which doesn't configure logging in settings.p...
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How to implement “select all” check box in HTML?

... 316 <script language="JavaScript"> function toggle(source) { checkboxes = document.getEleme...
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Ruby Arrays: select(), collect(), and map()

... 131 It looks like details is an array of hashes. So item inside of your block will be the whole ha...
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How do I know the current width of system scrollbar?

...perties -> Appearance -> Advanced -> Item: ScrollBar. The default value is 17. However, I can't assume this is always the case, is it possible for me to retrieve this value? ...
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Eclipse Autocomplete (percent sign, in Juno)

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Concurrent.futures vs Multiprocessing in Python 3

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Cannot kill Python script with Ctrl-C

... 179 Ctrl+C terminates the main thread, but because your threads aren't in daemon mode, they keep r...
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What is the “owning side” in an ORM mapping?

... | edited Sep 3 '15 at 19:08 answered Jan 11 '14 at 22:22 ...
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git add all except ignoring files in .gitignore file

... | edited Jul 7 '11 at 15:04 answered Jul 7 '11 at 14:59 ...