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Find integer index of rows with NaN in pandas dataframe

... a simpler solution: inds = pd.isnull(df).any(1).nonzero()[0] In [9]: df Out[9]: 0 1 0 0.450319 0.062595 1 -0.673058 0.156073 2 -0.871179 -0.118575 3 0.594188 NaN 4 -1.017903 -0.484744 5 0.860375 0.239265 6 -0.640070 NaN 7 -0.535802 1.632932 8 0.876523 -0.153...
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How to get TimeZone from android mobile?

... TimeZone tz = TimeZone.getDefault(); System.out.println("TimeZone "+tz.getDisplayName(false, TimeZone.SHORT)+" Timezon id :: " +tz.getID()); Output: TimeZone GMT+09:30 Timezon id :: Australia/Darwin ...
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The current SynchronizationContext may not be used as a TaskScheduler

... I think I figured it out. My TestInitialize is asynchronous. Every time there is an "await" in the TestInit, the current SynchronizationContext is lost. This is because (as @h9uest pointed out), the default implementation of SynchronizationContex...
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Python name mangling

...better code is always make everything as hidden as possible. If in doubt about whether a variable should be private or protected, it's better to go with private. ...
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Why C# implements methods as non-virtual by default?

...t? Is it more likely to be a performance issue rather than other possible outcomes? 9 Answers ...
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Can You Get A Users Local LAN IP Address Via JavaScript?

...on the web page. Why? Because that's what the page I'm working on is all about, showing as much information as possible about you, the visitor: http://www.whatsmyip.org/more-info-about-you/ ...
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Array.sort() doesn't sort numbers correctly [duplicate]

....4.11, the default sort order is lexicographical, although they don't come out and say it, instead giving the steps for a conceptual sort function that calls the given compare function if necessary, otherwise comparing the arguments when converted to strings: 13. If the argument comparefn is undefin...
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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout

... If there's any other process locking the port, you can find out which PID it has like this: $ lsof -i :3000 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME Passenger 40466 josh 5u IPv4 0x7cae9332073ed4df 0t0 TCP *:hbci (LISTEN) Passenger 40467 josh ...
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How to get the groups of a user in Active Directory? (c#, asp.net)

...M) namespace which makes this a lot easier than it used to be. Read all about it here: Managing Directory Security Principals in the .NET Framework 3.5 Update: older MSDN magazine articles aren't online anymore, unfortunately - you'll need to download the CHM for the January 2008 MSDN magazine fro...
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How to set up a cron job to run an executable every hour?

... The solution to solve this is to find out why you're getting the segmentation fault, and fix that. share | improve this answer | follow ...