Fixed C401 (unnecessary-generator-set): Unnecessary generator (rewrite as a `set` comprehension)

management/dns_update.py

@@ -361,8 +361,8 @@ def build_zone(domain, domain_properties, additional_records, env, is_zone=True)
 	# non-mail domain and also may include qnames from custom DNS records.
 	# Do this once at the end of generating a zone.
 	if is_zone:
-		qnames_with_a = set(qname for (qname, rtype, value, explanation) in records if rtype in {"A", "AAAA"})
-		qnames_with_mx = set(qname for (qname, rtype, value, explanation) in records if rtype == "MX")
+		qnames_with_a = {qname for (qname, rtype, value, explanation) in records if rtype in {"A", "AAAA"}}
+		qnames_with_mx = {qname for (qname, rtype, value, explanation) in records if rtype == "MX"}
 		for qname in qnames_with_a - qnames_with_mx:
 			# Mark this domain as not sending mail with hard-fail SPF and DMARC records.
 			d = (qname+"." if qname else "") + domain

management/mail_log.py

@@ -116,7 +116,7 @@ def scan_mail_log(env):
     try:
         import mailconfig
         collector["known_addresses"] = (set(mailconfig.get_mail_users(env)) |
-                                        set(alias[0] for alias in mailconfig.get_mail_aliases(env)))
+                                        {alias[0] for alias in mailconfig.get_mail_aliases(env)})
     except ImportError:
         pass
 

management/status_checks.py

@@ -624,7 +624,7 @@ def check_dnssec(domain, env, output, dns_zonefiles, is_checking_primary=False):
 			#
 			# But it may not be preferred. Only algorithm 13 is preferred. Warn if any of the
 			# matched zones uses a different algorithm.
-			if set(r[1] for r in matched_ds) == { '13' } and set(r[2] for r in matched_ds) <= { '2', '4' }: # all are alg 13 and digest type 2 or 4
+			if {r[1] for r in matched_ds} == { '13' } and {r[2] for r in matched_ds} <= { '2', '4' }: # all are alg 13 and digest type 2 or 4
 				output.print_ok("DNSSEC 'DS' record is set correctly at registrar.")
 				return
 			elif len([r for r in matched_ds if r[1] == '13' and r[2] in { '2', '4' }]) > 0: # some but not all are alg 13

management/utils.py

@@ -99,10 +99,10 @@ def sort_domains(domain_names, env):
 
 def sort_email_addresses(email_addresses, env):
     email_addresses = set(email_addresses)
-    domains = set(email.split("@", 1)[1] for email in email_addresses if "@" in email)
+    domains = {email.split("@", 1)[1] for email in email_addresses if "@" in email}
     ret = []
     for domain in sort_domains(domains, env):
-        domain_emails = set(email for email in email_addresses if email.endswith("@" + domain))
+        domain_emails = {email for email in email_addresses if email.endswith("@" + domain)}
         ret.extend(sorted(domain_emails))
         email_addresses -= domain_emails
     ret.extend(sorted(email_addresses)) # whatever is left

management/web_update.py

@@ -22,17 +22,17 @@ def get_web_domains(env, include_www_redirects=True, include_auto=True, exclude_
 		# Add 'www.' subdomains that we want to provide default redirects
 		# to the main domain for. We'll add 'www.' to any DNS zones, i.e.
 		# the topmost of each domain we serve.
-		domains |= set('www.' + zone for zone, zonefile in get_dns_zones(env))
+		domains |= {'www.' + zone for zone, zonefile in get_dns_zones(env)}
 
 	if include_auto:
 		# Add Autoconfiguration domains for domains that there are user accounts at:
 		# 'autoconfig.' for Mozilla Thunderbird auto setup.
 		# 'autodiscover.' for ActiveSync autodiscovery (Z-Push).
-		domains |= set('autoconfig.' + maildomain for maildomain in get_mail_domains(env, users_only=True))
-		domains |= set('autodiscover.' + maildomain for maildomain in get_mail_domains(env, users_only=True))
+		domains |= {'autoconfig.' + maildomain for maildomain in get_mail_domains(env, users_only=True)}
+		domains |= {'autodiscover.' + maildomain for maildomain in get_mail_domains(env, users_only=True)}
 
 		# 'mta-sts.' for MTA-STS support for all domains that have email addresses.
-		domains |= set('mta-sts.' + maildomain for maildomain in get_mail_domains(env))
+		domains |= {'mta-sts.' + maildomain for maildomain in get_mail_domains(env)}
 
 	if exclude_dns_elsewhere:
 		# ...Unless the domain has an A/AAAA record that maps it to a different