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Specify format for input arguments argparse python

I have a python script that requires some command line inputs and I am using argparse for parsing them. I found the documentation a bit confusing and couldn't find a way to check for a format in the input parameters. What I mean by checking format is explained with this example script: ...
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Using R to list all files with a specified extension

I'm very new to R and am working on updating an R script to iterate through a series of .dbf tables created using ArcGIS and produce a series of graphs. ...
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How do you change Background for a Button MouseOver in WPF?

I have a button on my page with this XAML: 6 Answers 6 ...
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Can you build dynamic libraries for iOS and load them at runtime?

Are dynamic libraries supported on iOS (iPhone/iPad)? 3 Answers 3 ...
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Are there constants in JavaScript?

Is there a way to use constants in JavaScript ? 33 Answers 33 ...
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How to subtract a day from a date?

I have a Python datetime.datetime object. What is the best way to subtract one day? 6 Answers ...
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Jquery: how to trigger click event on pressing enter key

I need to execute a button click event upon pressing key enter. 12 Answers 12 ...
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Differences in auto-unboxing between Java 6 vs Java 7

I have noted a difference in auto unboxing behavior between Java SE 6 and Java SE 7. I'm wondering why that is, because I can't find any documentation of changes in this behavior between these two versions. ...
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Should Jquery code go in header or footer?

Where is the best place to put Jquery code (or separate Jquery file)? Will pages load faster if I put it in the footer? 9 ...
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How to clone an InputStream?

I have a InputStream that I pass to a method to do some processing. I will use the same InputStream in other method, but after the first processing, the InputStream appears be closed inside the method. ...