block8.python

# Function to check, if there is any error in length of the extracted bs4 object
def error_checking(list_name, length):
    if (len(list_name) != length):
        print("Error in {} parsing, length not equal to {}!!!".format(list_name, length))
        return -1
    else:
        pass
    

def get_top_languages(url):
    # Using requests module for downloading webpage content
    response = requests.get(url)

    # Parsing html data using BeautifulSoup
    soup = bs(response.content, 'html.parser')
    body = soup.find('body')

    # Extracting Top Langauges
    lang_tags = body.find_all('a', class_='post-tag')
    error_checking(lang_tags, 36)                                     # Error Checking
    languages = [i.text for i in lang_tags]                           # Languages List

    # Extracting Tag Counts
    tag_counts = body.find_all('span', class_='item-multiplier-count')
    error_checking(tag_counts, 36)                                    # Error Checking
    no_of_tags = [int(i.text) for i in tag_counts]                    # Tag Counts List

    # Putting the two lists together
    df = pd.DataFrame({'Languages':languages,
                      'Tag Count':no_of_tags})

    return df