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Pandas DataFrame Groupby two columns and get counts

... I don't know Why I forgot this :O, Any way what about my second question?Find largest count for each "col2" value and get corresponding "col5" value? – Nilani Algiriyage Jul 16 '13 at 14:40 ...
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Why is whitespace sometimes needed around metacharacters?

A few months ago I tattooed a fork bomb on my arm, and I skipped the whitespaces, because I think it looks nicer without them. But to my dismay, sometimes (not always) when I run it in a shell it doesn't start a fork bomb, but it just gives a syntax error. ...
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Under what conditions is a JSESSIONID created?

... Right now im getting many hits on my filter to create session and seems like its only after the second hit (not a second page refresh) its being created, this called my attention " session isn't necessarily created on first request.." is it related? could you...
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How to convert date to timestamp?

I want to convert date to timestamp, my input is 26-02-2012 . I used 13 Answers 13 ...
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Use RSA private key to generate public key?

... openssl genrsa -out mykey.pem 1024 will actually produce a public - private key pair. The pair is stored in the generated mykey.pem file. openssl rsa -in mykey.pem -pubout > mykey.pub will extract the public key and print that out. Here ...
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How can I pass a list as a command-line argument with argparse?

... belongs to the nargs. -- helps to figure this out as shown in example in my previous comment. IOW user supplies -- followed by all positional arguments. – 0andriy Aug 16 '17 at 18:09 ...
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Determining Referer in PHP

...and I need the page being called to only come from requests originating on my site. Edit: I am looking to verify that a script that preforms a series of actions is being called from a page on my website. ...
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How to remove all leading zeroes in a string

... Caveat $str := '0'. Addressed in my answer, based on this answer. – Mike Weir Dec 4 '15 at 3:58 ...
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How do I step out of a loop with Ruby Pry?

I'm using Pry with my Rails application. I set binding.pry inside a loop in my model to try and debug a problem. For example: ...
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How to set the UITableView Section title programmatically (iPhone/iPad)?

... (section) { case 0: sectionName = NSLocalizedString(@"mySectionName", @"mySectionName"); break; case 1: sectionName = NSLocalizedString(@"myOtherSectionName", @"myOtherSectionName"); break; // ... default: s...