this is almost ready

http.py

@@ -11,7 +11,7 @@ from io import StringIO
 from email.utils import formatdate
 
 Fork = False
-# The next post in this series,which now has the name
+# The next post in this series, which now has the name
 # __The Network Programing Purgatorio__ by the way.
 # Was originally going to be about how to use TLS
 # But it turns out just kinda faking your http implementation
@@ -38,6 +38,9 @@ Fork = False
 # client's code in a public project.
 # Thus cut 'n' paste.
 
+CRLF = "\r\n"
+LF = "\n"
+
 
 class AccessDict(dict):
     def __init__(self, *args, **kwargs):
@@ -83,6 +86,8 @@ class HttpRequest(AccessDict):
         self["headers"] = headers
         self["body"] = StringIO(body)
         self["path"] = path
+        if "Host" not in self["headers"]:
+            self["headers"]["Host"] = "localhost"
 
     def read(self, seek):
         return self["body"].read(seek)
@@ -92,6 +97,7 @@ class HttpRequest(AccessDict):
         buf.write(f"{self.method} {self.path} HTTP/1.1")
         for k, v in self["headers"].items():
             buf.write(f"{k}: {v}\r\n")
+        buf.write(CRLF + CRLF)
         buf.write(self["body"].getvalue() + "\r\n")
         return buf.getvalue() + "\r\n"
 
@@ -115,14 +121,17 @@ class HttpResponse(AccessDict):
     def write(self, stuff):
         return self.body.write(stuff)
 
+    # Foreshadowing (n): A literary device in which an author ...
     def __str__(self):
         buf = StringIO()
         print(self.headers)
-        buf.write(f"HTTP/1.1 {self.status}\r\n ")
+        buf.write(f"HTTP/1.1 {self.status}\r\n")
         length = len(self["body"].getvalue())
         for k, v in self["headers"].items():
             buf.write(f"{k}: {v}\r\n")
         buf.write(f"Content-Length: {length}\r\n")
+        buf.write(CRLF + CRLF)  # Per RFC 9112
+
         buf.write(self["body"].getvalue() + "\r\n")
         return buf.getvalue() + "\r\n"