Final Task - Liana Kalpakchyan

LianaKalpakchyan/rss_reader/README.md

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+[Readme for RSS reader].
+===================================================================
+One-shot command-line RSS reader.
+RSS reader is a command-line utility which receive [RSS](https://wikipedia.org/wiki/RSS) URL and prints results in human-readable format.
+The program allows you to read news articles directly in the console output. 
+
+
+[Common usage]:
+===================================================================
+    usage: rss_reader.py [-h] [--version] [--json] [--verbose] [--limit LIMIT] [--date DATE] [--to-pdf [TO_PDF ...]] [--to-html [TO_HTML ...]] [source]
+
+    One-shot command-line RSS reader ^_^
+
+    positional arguments:
+      source                RSS URL
+
+    optional arguments:
+      -h, --help            show this help message and exit
+      --version             Print version info
+      --json                Print result as JSON in stdout
+      --verbose, --v        Outputs verbose status messages
+      --limit LIMIT         Limit news topics if this parameter provided
+      --date DATE           Takes a date. For example: for "--date 20191020" news from the specified day will be printed out.
+      --to-pdf [TO_PDF ...]
+                            Conversion of news into a PDF format
+      --to-html [TO_HTML ...]
+                            Conversion of news into an HTML format
+
+

LianaKalpakchyan/rss_reader/build/lib/rss_reader/rss_argparser/rss_argparser.py

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+#!/usr/bin/env python3
+import argparse
+
+
+class Argparser():
+    """
+    A class to get arguments from CLI
+
+    ...
+
+    Attributes
+    ----------
+    version: str
+       Keeps the program current version
+
+    Methods
+    -------
+    get_args():
+        Implements cli arguments processing
+    """
+
+    def __init__(self):
+        self.version = '0.4.0'
+
+    def get_args(self):
+        """This function processes arguments received from console using argparse module.
+        :return: Namespace (args)
+        """
+        parser = argparse.ArgumentParser(
+            description='One-shot command-line RSS reader ^_^')
+        parser.add_argument('source',
+                            help='RSS URL',
+                            nargs='?',
+                            default=None)
+        parser.add_argument('--version',
+                            action='store_true',
+                            help='Print version info')
+        parser.add_argument('--json',
+                            action='store_true',
+                            help='Print result as JSON in stdout')
+        parser.add_argument('--verbose', '--v',
+                            action='store_true',
+                            help='Outputs verbose status messages')
+        parser.add_argument('--limit',
+                            type=int,
+                            help='Limit news topics if this parameter provided',
+                            default=-1)
+        parser.add_argument('--date',
+                            help='Takes a date. For example: for "--date 20191020" \
+                            news from the specified day will be printed out.',
+                            type=int,
+                            default=None)
+        parser.add_argument('--to-pdf',
+                            help='Conversion of news into a PDF format',
+                            nargs='*')
+        parser.add_argument('--to-html',
+                            help='Conversion of news into an HTML format',
+                            nargs='*')
+        args = parser.parse_args()
+        if args.version:
+            print(f'Program version: {self.version}')
+            if args.source is None:
+                exit()
+
+        return args