Apply various minor refactorings

Improve readability and fix a few Python warnings (line too long, exception too broad...) through various minor refactorings.

src/gke.py

@@ -5,42 +5,44 @@ from datetime import datetime
 
 # https://regex101.com/r/zPxBqT/1
 REGEX = r"\d.\d+\.\d+-gke\.\d+"
+CHANNELS = ['nochannel', 'stable', 'regular', 'rapid']
+
 
 def fetch_channel(channel):
-    url = "https://cloud.google.com/kubernetes-engine/docs/release-notes-{}".format(channel)
+    url = f"https://cloud.google.com/kubernetes-engine/docs/release-notes-{channel}"
     response = endoflife.fetch_url(url)
     return BeautifulSoup(response, features="html5lib")
 
-"""
-Takes soup, and returns a dictionary of versions and their release dates
-"""
+
 def parse_soup_for_versions(soup):
-    """ Parse the soup """
+    """Takes soup, and returns a dictionary of versions and their release dates
+    """
     versions = {}
     for section in soup.find_all('section', class_='releases'):
         # h2 contains the date, which we parse
         for h2 in section.find_all('h2'):
             date = h2.get('data-text')
             date = datetime.strptime(date, '%B %d, %Y').strftime('%Y-%m-%d')
-            # The div next to the h2 contains the notes about changes made on that date
+            # The div next to the h2 contains the notes about changes made
+            # on that date
             next_div = h2.find_next('div')
             # New releases are noted in a nested list, so we look for that
             # and parse it using the version regex
             for li in next_div.find_all('li'):
-                # If the <li> text contains with "versions are now available:", get the <ul> inside the li
+                # If the <li> text contains with "versions are now available:",
+                # get the <ul> inside the li
                 if "versions are now available" in li.text:
                     ul = li.find('ul')
                     for version in re.findall(REGEX, ul.text):
                         versions[version] = date
-                        print("%s: %s" % (version, date))
+                        print(f"{version}: {date}")
     return versions
 
-CHANNELS = ['nochannel', 'stable', 'regular', 'rapid']
 
 for channel in CHANNELS:
     soup = fetch_channel(channel)
-    print("::group::GKE - {}".format(channel))
+    print(f"::group::GKE - {channel}")
     versions = parse_soup_for_versions(soup)
-    name = 'gke' if channel == 'nochannel' else 'gke-{}'.format(channel)
+    name = 'gke' if channel == 'nochannel' else f'gke-{channel}'
     endoflife.write_releases(name, versions)
     print("::endgroup::")