Understanding the introductory code snippet for Haskell's popular optparse-applicative library...

displaying newlines in the help message when using python's optparse...

How to default to information if none is given using optparse...

Extract arguments from python script...

in Ruby, OptionParser returns boolean instead of input values...

Reading a file that is passed as argument while using optparse...

Optparser defaulting to usage_page no matter what flag is given...

OptionParse in Ruby and params not starting with '-'...

How to handle directories or files using OptionParser...

OptionParser's make_switch error with '-?'...

Parsing command-line arguments as wildcards...

Using Ruby optparse to process list of files...

Are long option names case insensitive using OptionParser?...

optparse - why the last char of the option can be ignored? With `--file` it behaves same as `--fil`...

Multicharacter command-line arguments with a ruby script...

Can I specify mandatory arguments with optparse...

Optparse and a lot of if not...

How do I format positional argument help using Python's optparse?...

Encoding problems with ruby while reading in command line arguments with optparse...

Python 2.7 optparse not reading 2nd flag...

How pass unknown set of parameters to R function...

Why am I getting no attribute '__getitem__' error for dictionary?...

Getting command line arguments as tuples in python...

Python Command Line Arguments: Calling a function...

How to make 'optparse' print menu by default if no argument provided?...

Python optparse not accepting options...

Why do I still have optparse being used in Django v1.7.4?...

ValueError in optparse when using type...

Argparse to have type as choice...

Availability of argparse in Python 2.x versions...