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Progress indicator during pandas operations

I regularly perform pandas operations on data frames in excess of 15 million or so rows and I'd love to have access to a progress indicator for particular operations. ...
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I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?

...mDateString('1 day'); $period = new DatePeriod($begin, $interval, $end); foreach ($period as $dt) { echo $dt->format("l Y-m-d H:i:s\n"); } This will output all days in the defined period between $start and $end. If you want to include the 10th, set $end to 11th. You can adjust format to yo...
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Read url to string in few lines of java code

... Now that some time has passed since the original answer was accepted, there's a better approach: String out = new Scanner(new URL("http://www.google.com").openStream(), "UTF-8").useDelimiter("\\A").next(); If you want a slightly fuller implementation, which is ...
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Check if a value is in an array (C#)

... @0A0D. This answer is I think straight best one as simplest/shortest and well known way to achieve same thing (How do I check if a value is in an array in C#?) and efficient as well. No loop no extra method. Just a namespace is extra which is not a big thing. – Sam...
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Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter

...MyActivity class, when I try to commit the code to Git, I get a strange error I don't understand. The code is this: 3 Answe...
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How to list empty folders in linux

In Linux how do I check all folders in a directory and output the name of all directories that are empty to a list. 1 Answe...
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Node.js get file extension

...ed Apr 26 '13 at 7:10 Tim Santeford 22.9k1111 gold badges6969 silver badges9898 bronze badges answered Apr 3 '13 at 3:32 ...
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How can I safely create a nested directory?

What is the most elegant way to check if the directory a file is going to be written to exists, and if not, create the directory using Python? Here is what I tried: ...
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Is there a Unix utility to prepend timestamps to stdin?

I ended up writing a quick little script for this in Python, but I was wondering if there was a utility you could feed text into which would prepend each line with some text -- in my specific case, a timestamp. Ideally, the use would be something like: ...
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Maven artifact and groupId naming

I'm currently in the process of moving some project from Ant to Maven. Conformist as I am, I want to use well-established conventions for finding groupId and artifactId , but I can't find any detailed conventions (there are some, but they don't cover the points I'm wondering about). ...