bradmontgomery · September 24, 2025 10:25 · Jan 25, 2021 · Sep 27, 2019 · Sep 27, 2019 · Sep 27, 2019
diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -19,6 +19,27 @@
 
     curl -d "foo=bar&bin=baz" http://localhost:8000
 
+This code is available for use under the MIT license.
+
+----
+
+Copyright 2021 Brad Montgomery
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.    
+
 """
 import argparse
 from http.server import HTTPServer, BaseHTTPRequestHandler

diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -30,17 +30,25 @@ def _set_headers(self):
         self.send_header("Content-type", "text/html")
         self.end_headers()
 
+    def _html(self, message):
+        """This just generates an HTML document that includes `message`
+        in the body. Override, or re-write this do do more interesting stuff.
+
+        """
+        content = f"<html><body><h1>{message}</h1></body></html>"
+        return content.encode("utf8")  # NOTE: must return a bytes object!
+
     def do_GET(self):
         self._set_headers()
-        self.wfile.write(b"<html><body><h1>hi!</h1></body></html>")
+        self.wfile.write(self._html("hi!"))
 
     def do_HEAD(self):
         self._set_headers()
 
     def do_POST(self):
         # Doesn't do anything with posted data
         self._set_headers()
-        self.wfile.write(b"<html><body><h1>POST!</h1></body></html>")
+        self.wfile.write(self._html("POST!"))
 
 
 def run(server_class=HTTPServer, handler_class=S, addr="localhost", port=8000):

diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -1,18 +1,23 @@
 #!/usr/bin/env python
 """
-Very simple HTTP server in python.
+Very simple HTTP server in python (Updated for Python 3.7)
 
-Usage::
-    ./dummy-web-server.py [<port>]
+Usage:
 
-Send a GET request::
-    curl http://localhost
+    ./dummy-web-server.py -h
+    ./dummy-web-server.py -l localhost -p 8000
 
-Send a HEAD request::
-    curl -I http://localhost
+Send a GET request:
 
-Send a POST request::
-    curl -d "foo=bar&bin=baz" http://localhost
+    curl http://localhost:8000
+
+Send a HEAD request:
+
+    curl -I http://localhost:8000
+
+Send a POST request:
+
+    curl -d "foo=bar&bin=baz" http://localhost:8000
 
 """
 import argparse
@@ -27,15 +32,15 @@ def _set_headers(self):
 
     def do_GET(self):
         self._set_headers()
-        self.wfile.write("<html><body><h1>hi!</h1></body></html>")
+        self.wfile.write(b"<html><body><h1>hi!</h1></body></html>")
 
     def do_HEAD(self):
         self._set_headers()
 
     def do_POST(self):
         # Doesn't do anything with posted data
         self._set_headers()
-        self.wfile.write("<html><body><h1>POST!</h1></body></html>")
+        self.wfile.write(b"<html><body><h1>POST!</h1></body></html>")
 
 
 def run(server_class=HTTPServer, handler_class=S, addr="localhost", port=8000):

diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -15,13 +15,14 @@
     curl -d "foo=bar&bin=baz" http://localhost
 
 """
-from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
-import SocketServer
+import argparse
+from http.server import HTTPServer, BaseHTTPRequestHandler
+
 
 class S(BaseHTTPRequestHandler):
     def _set_headers(self):
         self.send_response(200)
-        self.send_header('Content-type', 'text/html')
+        self.send_header("Content-type", "text/html")
         self.end_headers()
 
     def do_GET(self):
@@ -30,22 +31,36 @@ def do_GET(self):
 
     def do_HEAD(self):
         self._set_headers()
-        
+
     def do_POST(self):
         # Doesn't do anything with posted data
         self._set_headers()
         self.wfile.write("<html><body><h1>POST!</h1></body></html>")
-
-def run(server_class=HTTPServer, handler_class=S, port=80):
-    server_address = ('', port)
+
+
+def run(server_class=HTTPServer, handler_class=S, addr="localhost", port=8000):
+    server_address = (addr, port)
     httpd = server_class(server_address, handler_class)
-    print 'Starting httpd...'
+
+    print(f"Starting httpd server on {addr}:{port}")
     httpd.serve_forever()
 
+
 if __name__ == "__main__":
-    from sys import argv
 
-    if len(argv) == 2:
-        run(port=int(argv[1]))
-    else:
-        run()
+    parser = argparse.ArgumentParser(description="Run a simple HTTP server")
+    parser.add_argument(
+        "-l",
+        "--listen",
+        default="localhost",
+        help="Specify the IP address on which the server listens",
+    )
+    parser.add_argument(
+        "-p",
+        "--port",
+        type=int,
+        default=8000,
+        help="Specify the port on which the server listens",
+    )
+    args = parser.parse_args()
+    run(addr=args.listen, port=args.port)
diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -1,4 +1,3 @@
-
 #!/usr/bin/env python
 """
 Very simple HTTP server in python.
@@ -40,14 +39,12 @@ def do_POST(self):
 def run(server_class=HTTPServer, handler_class=S, port=80):
     server_address = ('', port)
     httpd = server_class(server_address, handler_class)
-    print 'STarting httpd...'
+    print 'Starting httpd...'
     httpd.serve_forever()
 
 if __name__ == "__main__":
     from sys import argv
 
-    print 'argv = ', argv
-
     if len(argv) == 2:
         run(port=int(argv[1]))
     else:

diff --git a/dummy-web-server.py b/dummy-web-server.py
@@ -0,0 +1,54 @@
+
+#!/usr/bin/env python
+"""
+Very simple HTTP server in python.
+
+Usage::
+    ./dummy-web-server.py [<port>]
+
+Send a GET request::
+    curl http://localhost
+
+Send a HEAD request::
+    curl -I http://localhost
+
+Send a POST request::
+    curl -d "foo=bar&bin=baz" http://localhost
+
+"""
+from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
+import SocketServer
+
+class S(BaseHTTPRequestHandler):
+    def _set_headers(self):
+        self.send_response(200)
+        self.send_header('Content-type', 'text/html')
+        self.end_headers()
+
+    def do_GET(self):
+        self._set_headers()
+        self.wfile.write("<html><body><h1>hi!</h1></body></html>")
+
+    def do_HEAD(self):
+        self._set_headers()
+
+    def do_POST(self):
+        # Doesn't do anything with posted data
+        self._set_headers()
+        self.wfile.write("<html><body><h1>POST!</h1></body></html>")
+
+def run(server_class=HTTPServer, handler_class=S, port=80):
+    server_address = ('', port)
+    httpd = server_class(server_address, handler_class)
+    print 'STarting httpd...'
+    httpd.serve_forever()
+
+if __name__ == "__main__":
+    from sys import argv
+
+    print 'argv = ', argv
+
+    if len(argv) == 2:
+        run(port=int(argv[1]))
+    else:
+        run()