Veranika_Rechyts_verarechyts@gmail.com

final_task/rss_reader/cmd_line.py

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+import sys
+import argparse
+import logging
+from final_task.rss_reader import rss_reader
+
+
+__version__ = '1.0'
+
+
+if __name__ == '__main__':
+    """This is executed when run from the command line"""
+    try:
+        parser = argparse.ArgumentParser(description='Some description')
+        # Required position argument
+        parser.add_argument('source', type=str, help='RSS URL')
+        # Specify output of "--version"
+        parser.add_argument('--version', action='version', version='%(prog)s Iteration {version}'.format(version=__version__), help='Print version info')
+        # Optional argument
+        parser.add_argument('--json', nargs='?', type=argparse.FileType('w'), default=sys.stdout,
+                            help='Print result as JSON in stdout')
+        # Optional argument limit count of news
+        parser.add_argument('--limit', type=int, help='Limit news topics if this parameter provided')
+        args = parser.parse_args()
+        limit = args.limit
+        source = args.source
+        logging.basicConfig(filename='rss_logging.log', level=logging.INFO)
+        logging.info('return limit news')
+        print(rss_reader.get_news(source)['News'][:limit])
+        logging.info('return limit news')
+    except (TypeError, ValueError, IndexError):
+        sys.exit("Error limit")

final_task/rss_reader/requirements.txt

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+# cat requirements.txt
+feedparser==5.2.1

final_task/rss_reader/rss_reader.py

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+import feedparser
+
+
+def get_dict_from_rss_site(source):
+    """Function for getting dict from RSS URL"""
+    try:
+        dict_from_rss_site = feedparser.parse(source)
+        if dict_from_rss_site:
+            return dict_from_rss_site
+        else: return ConnectionError(f"{source} can't be reached")
+    except OSError:
+        raise ConnectionError(f"{source} can't be reached")
+
+
+def check_key_in_dict_from_rss_site(dict_from_rss_site, key):
+    """Function for checking existing of key in dict"""
+    if dict_from_rss_site.get(key, None):
+        return True
+    return False
+
+
+def get_news(source):
+    """Function for creation dict news, where key "News" and value is list of news, from RSS URL's news.
+    Sourse is RSS URL"""
+    dict_from_rss_site = get_dict_from_rss_site(source)
+    news = []
+    news_reslt = {}
+    if check_key_in_dict_from_rss_site(dict_from_rss_site, 'entries'):
+        for entry in dict_from_rss_site.entries:
+            site_info = {}
+            if check_key_in_dict_from_rss_site(dict_from_rss_site, 'feed'):
+                if check_key_in_dict_from_rss_site(dict_from_rss_site.feed, 'title'):
+                    site_info['Feed'] = dict_from_rss_site.feed.title
+            if check_key_in_dict_from_rss_site(entry, 'title'):
+                site_info['Title'] = entry.title
+            if check_key_in_dict_from_rss_site(entry, 'published'):
+                site_info['Date'] = entry.published
+            if check_key_in_dict_from_rss_site(entry, 'link'):
+                site_info['Link'] = entry.link
+            news.append(site_info)
+    news_reslt['News'] = news
+    if news:
+        return news_reslt
+    else:
+        return f"{source} can't be reached"