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Efficient way to apply multiple filters to pandas DataFrame or Series
...lean is more efficient since it doesn't make a copy of the data. However, my scenario is a bit more tricky than your example. The input I receive is a dictionary defining what filters to apply. My example could do something like df[(ge(df['col1'], 1) & le(df['col1'], 1)]. The issue for me re...
How to know if user is logged in with passport.js?
...() with any middleware to check for authentication, as in "router.get('/', my_controller.index)", then passport is never consulted and req.user will always be undefined. This is frustrating because I want to allow any visitor to call an API, but tailor the content of the response depending on who i...
Check whether a path is valid in Python without creating a file at the path's target
...nomenclature, I'm a pedantic fan of prefixing tester names by is_. This is my character flaw. Nonetheless, duly noted: you can't please everybody, and sometimes you can't please anybody. ;)
– Cecil Curry
Dec 9 '15 at 3:34
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Why do Java webapps use .do extension? Where did it come from?
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To my knowledge, this convention has been spread by Struts1. The user guide puts it like this:
5.4.2 Configure the ActionServlet Mapping
Note: The material in this section is not specific to Struts. The
configuration...
What is reflection and why is it useful?
...ossible to use reflection without risking runtime exceptions. As hinted in my answer, a common use of reflection is for libraries or frameworks, which explicitly can't know the structure of the application at compile time, since they are compiled separate from the application. Any library that uses ...
Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...eString and not a normal one.. because I am facing a huge lag with setText(my_string) when my_string has smileys in it (like that of watsapp) as compared to normal string..(which has only plain text) kindly throw some light... somehow I believed that smilleys are nothing but text (unicode) only
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How does this milw0rm heap spraying exploit work?
...reciate this effort from you for this explication. +25 reputations and all my respect. Thanks
– Patrick Desjardins
Dec 19 '08 at 16:00
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Chrome extension: accessing localStorage in content script
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I'm a bit confused. I want data from my options page to be available at background.html page.. So I make a request from Background page to the contentscript? and contentscript can send back the localStorage data? See this -> pastebin.com/xtFexFtc .. Am I doin...
How do you execute an arbitrary native command from a string?
I can express my need with the following scenario: Write a function that accepts a string to be run as a native command.
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Select by partial string from a pandas DataFrame
...ed" to multiple columns using the column-wise apply method (which is OK in my book, as long as you don't have too many columns).
If you have a DataFrame with mixed columns and want to select only the object/string columns, take a look at select_dtypes.
Multiple Substring Search
This is most easily ...