Add error handling and improve scraping logic for COVID-19 statistics…

web_programming/world_covid19_stats.py

@@ -2,7 +2,7 @@
 
 """
 Provide the current worldwide COVID-19 statistics.
-This data is being scrapped from 'https://www.worldometers.info/coronavirus/'.
+This data is being scraped from 'https://www.worldometers.info/coronavirus/'.
 """
 
 import requests
@@ -11,16 +11,45 @@
 
 def world_covid19_stats(url: str = "https://www.worldometers.info/coronavirus") -> dict:
     """
-    Return a dict of current worldwide COVID-19 statistics
+    Return a dictionary of current worldwide COVID-19 statistics.
+
+    The function scrapes COVID-19 statistics from the Worldometer website. 
+    It returns key metrics such as total cases, deaths, and recoveries.
+
+    :param url: URL of the website to scrape data from (default is Worldometer COVID-19 page).
+    :return: A dictionary containing the key COVID-19 statistics.
+    :raises: Exception if there is an issue with the request or scraping.
     """
-    soup = BeautifulSoup(requests.get(url, timeout=10).text, "html.parser")
-    keys = soup.findAll("h1")
-    values = soup.findAll("div", {"class": "maincounter-number"})
-    keys += soup.findAll("span", {"class": "panel-title"})
-    values += soup.findAll("div", {"class": "number-table-main"})
-    return {key.text.strip(): value.text.strip() for key, value in zip(keys, values)}
+    try:
+        # Make a GET request to the URL and create a BeautifulSoup object
+        response = requests.get(url, timeout=10)
+        response.raise_for_status()  # Check for request errors
+        soup = BeautifulSoup(response.text, "html.parser")
+
+        # Extract the keys (labels) and values (statistics)
+        keys = soup.findAll("h1")
+        values = soup.findAll("div", {"class": "maincounter-number"})
+        keys += soup.findAll("span", {"class": "panel-title"})
+        values += soup.findAll("div", {"class": "number-table-main"})
+
+        # Create and return a dictionary of COVID-19 statistics
+        return {key.text.strip(): value.text.strip() for key, value in zip(keys, values)}
+
+    except requests.RequestException as e:
+        print(f"Error fetching data from {url}: {e}")
+        return {}
+    except Exception as e:
+        print(f"An error occurred during scraping: {e}")
+        return {}
 
 
 if __name__ == "__main__":
     print("\033[1m COVID-19 Status of the World \033[0m\n")
-    print("\n".join(f"{key}\n{value}" for key, value in world_covid19_stats().items()))
+
+    stats = world_covid19_stats()
+
+    # If stats is empty, inform the user that something went wrong
+    if stats:
+        print("\n".join(f"{key}\n{value}" for key, value in stats.items()))
+    else:
+        print("Could not retrieve the COVID-19 statistics.")