Re: [simuPOP-list] Examples of argparse instead of simuOpt.Params()

[Peng,Bo <bp...@md...>]

Hi, Zhian,

We are moving to github so please start a ticket at
github.com/BoPeng/simuPOP/issues for new topics.

Yes, simuOpt.Params() was developed before argparse was available.
Although it still has some unique features (notably validation,
configuration file, and GUI), it is not as powerful and robust as argparse
as a general-purpose argument parser. I have switched to argparse and
found it quite nice to use in general.

For your question, argparse does not have built in support for
configuration files. I usually use json or yaml for such features and
http://codereview.stackexchange.com/questions/110108/using-argparse-with-pa
rameters-defined-in-config-file provides an example. Basically, I would
give default values to all command line options in argparse and an option
(e.g. -c ) to read a configuration file. The values read from
configuration file (e.g. cfg = yaml.safe_load(config)) would then be used
to populate the arguments. Saving parameters to a configuration file is
also easy (e.g. yaml.safe_dump()) if you do not have high requirement for
readability of configuration file.

Hope this helps,
Bo

On 8/19/16, 11:57 AM, "Zhian Kamvar" <ka...@sc...>
wrote:

>Hello,
>
>I was wondering if anyone has an example of using argparse instead of
>simuOpt.Params() given that the latter is now deprecated [0]? I'm looking
>for an example that encapsulates reading in arguments from the command
>line OR a configuration file and then writing them to a configuration
>file. 
>
>I've found a blog post [1] on advanced argument parsing and will be
>attempting to refactor my script. If I come up with a solution before
>anyone answers, I'll answer my own question.
>
>Thanks,
>Zhian
>
>[0]: 
>http://simupop.sourceforge.net/manual_svn/build/userGuide_ch7_sec1.html
>[1]: 
>http://tricksntweaks.blogspot.com/2013/05/advance-argument-parsing-in-pyth
>on.html
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