diff --git a/generate/container.py b/generate/container.py
index 9cc2eda..df6d21d 100644
--- a/generate/container.py
+++ b/generate/container.py
@@ -17,7 +17,7 @@ class ConfigError(Exception):
     def __init__(self, message: str = "") -> None:
         """Create Exception object."""
         self.message = message
-        self.super.__init__(message)
+        super().__init__(message)
 
     def __str__(self) -> str:
         """Convert Exception object to a string."""
@@ -57,7 +57,7 @@ def trim(s: str) -> str:
     """Remove sequential whitespace."""
     s = s.replace("\t ", "\t")
     s = s.replace("\t\\\n", "  ")
-    while s.__contains__("  "):
+    while "  " in s:
         s = s.replace("  ", " ")
     return s
 
@@ -236,10 +236,15 @@ class Ports:
     def command(self) -> str:
         """Option for podman container create."""
         ports = ""
-        for port in self.tcp_ports:
-            ports += f"\t--port {port}/tcp \\\n"
-        for port in self.udp_ports:
-            ports += f"\t--port {port}/udp \\\n"
+        seperator = " \\\n"
+        ports += seperator.join(
+            [f"\t--port {port}/tcp" for port in self.tcp_ports]
+        )
+        ports += seperator
+        ports += seperator.join(
+            [f"\t--port {port}/udp" for port in self.udp_ports]
+        )
+        ports += seperator
         return ports
 
 
@@ -447,7 +452,7 @@ class Container:
 
     def create_container(self) -> str:
         """Generate podman container create command."""
-        cmd = f"# Create container {self.name}"
+        cmd = f"# Create container {self.name}\n"
         cmd += "podman container crate \\\n"
         cmd += f"\t--name={self.name} \\\n"
         if self.privileged: