def is_fqdn()

in Azure Firewall/Script - Migrate Checkpoint config to Azure Firewall Policy/chkp2azfw.py [0:0]

• 2 lines of code
• 1 McCabe index (conditional complexity)

def is_fqdn(str_var):
    return bool(re.match(r"(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\.)+[a-zA-Z]{2,4}$)",str(str_var)))