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Python syntax for “if a or b or c but not all of them”

I have a python script that can receive either zero or three command line arguments. (Either it runs on default behavior or needs all three values specified.) ...
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throws Exception in finally blocks

Is there an elegant way to handle exceptions that are thrown in finally block? 15 Answers ...
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How to use “/” (directory separator) in both Linux and Windows in Python?

I have written a code in python which uses / to make a particular file in a folder, if I want to use the code in windows it will not work, is there a way by which I can use the code in Windows and Linux. ...
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How to detect if a function is called as constructor?

Given a function: 21 Answers 21 ...
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Expand a div to fill the remaining width

I want a two-column div layout, where each one can have variable width e.g. 21 Answers ...
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What is the difference between Amazon SNS and Amazon SQS?

I don't understand when I would use SNS versus SQS, and why are they always coupled together? 6 Answers ...
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Is it possible to implement a Python for range loop without an iterator variable?

... 14 Answers 14 Active ...
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Where could I buy a valid SSL certificate? [closed]

I need to have a valid SSL certificate, by valid I mean not self signed. I don't want my customers to have to deal with the 'exception'. ...
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Best way to merge two maps and sum the values of same key?

I want to merge them, and sum the values of same keys. So the result will be: 15 Answers ...
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git push says “everything up-to-date” even though I have local changes

I have a remote gitosis server and a local git repository, and each time I make a big change in my code, I'll push the changes to that server too. ...