Minor improvements

source-code/application/my_app.py

@@ -11,7 +11,7 @@ def generate_data(n, a=0, b=1):
     return [random.randint(a, b) for _ in range(n)]
 
 def main():
-    arg_parser = ArgumentParser(description='test application')
+    arg_parser = ArgumentParser(add_help=False)
     arg_parser.add_argument('--conf',
                             help='configuration file to use')
     arg_parser.add_argument('--verbose', action='store_true',
@@ -36,12 +36,14 @@ def main():
             print('user configuration file values:', file=sys.stderr)
             cfg.write(sys.stderr)
     cfg_opts = dict(cfg['defaults'])
-    arg_parser.set_defaults(**cfg_opts)
-    arg_parser.add_argument('n', type=int, nargs='?',
-                            help='number of random values to generate')
-    arg_parser.add_argument('--a', type=int, help='smallest value')
-    arg_parser.add_argument('--b', type=int, help='largest value')
-    arg_parser.parse_args(remaining_options, options)
+    arg_parser_cl = ArgumentParser(description='test application',
+                                   parents=[arg_parser])
+    arg_parser_cl.set_defaults(**cfg_opts)
+    arg_parser_cl.add_argument('n', type=int, nargs='?',
+                               help='number of random values to generate')
+    arg_parser_cl.add_argument('--a', type=int, help='smallest value')
+    arg_parser_cl.add_argument('--b', type=int, help='largest value')
+    arg_parser_cl.parse_args(remaining_options, options)
     if options.verbose:
         print('final options:', file=sys.stderr)
         print(f'n = {options.n}\na = {options.a}\nb = {options.b}', end='\n\n',

source-code/hydra/README.md

@@ -14,3 +14,23 @@ multiruns and so on.
    1. `config.yaml`: configuration file with the defaults.
    1. `distr/gauss.yaml`: configuration file for the Gaussian distirubtion.
    1. `distr/uniform.yaml`: configuration file for the uniform distirubtion.
+
+## How to use it?
+Run with configuratino file settings:
+```bash
+$ ./gen_rand.py
+```
+To increase the number of random values:
+```bash
+$ ./gen_rand.py 10
+```
+
+To use a uniform distribution:
+```bash
+$ ./gen_rand.py distr=uniform
+```
+
+To use a uniform distribution between -1 and 0:
+```bash
+$ ./gen_rand.py distr=uniform distr.a=-1.0 distr.b=0.0
+```

source-code/hydra/gen_rand.py

@@ -14,7 +14,7 @@ def gen_rand(cfg):
     if cfg.n <= 0:
         LOG.error(f'negative number to generate {cfg.n}')
         return 1
-    LOG.info(f'genrating {cfg.n} random numbers')
+    LOG.info(f'generating {cfg.n} random numbers')
     LOG.info(f'using {cfg.distr.name} distribution')
     if cfg.distr.name == 'gauss':
         LOG.info(f'mu={cfg.distr.mu}, sigma={cfg.distr.sigma}')