Fix: ERROR: local variable 'certdir' referenced before assignment

src/av98/tofu.py

@@ -110,10 +110,10 @@ class TofuStore:
                     self.db_conn.commit()
                     break
             else:
+                certdir = os.path.join(self.config_dir, "cert_cache")
                 if _HAS_CRYPTOGRAPHY:
                     # Load the most frequently seen certificate to see if it has
                     # expired
-                    certdir = os.path.join(self.config_dir, "cert_cache")
                     with open(os.path.join(certdir, most_frequent_cert+".crt"), "rb") as fp:
                         previous_cert = fp.read()
                     previous_cert = x509.load_der_x509_certificate(previous_cert, _BACKEND)