Getting ready

In the Designing scripts for composition recipe, we looked at an application that produced a YAML file with the raw output of a simulation in it. In this recipe, we'll look at an application that consumes that raw data and produces some statistical summaries. We'll call this application overview_stats.py.

Following the design pattern of separating the input, output, and processing, we'll have an application main() that looks something like this:

    def main(): 
        options = get_options(sys.argv[1:]) 
        if options.output is not None: 
            report_path = Path(options.output) 
            with report_path.open('w') as result_file: 
                process_all_files(result_file, options.file) 
        else: 
            process_all_files(sys.stdout, options.file) 

This function will get the options ...

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