Add python file headers

adventure/seafloor/coral_reef/chest.py

@@ -1,4 +1,8 @@
-# This is a Python program. You should run it by typing "chest.py"
+# chest.py
+# --------
+# By MWC Contributors
+# 
+# This is a Python program. You should run it by typing `python chest.py`.
 
 import os
 from pathlib import Path

adventure/seafloor/sunken_ship/galley/ghost.py

@@ -1,4 +1,8 @@
-# This is a Python file. You can run it by typing "python ghost.py"
+# ghost.py
+# --------
+# By MWC Contributors
+# 
+# This is a Python program. You can run it by typing `python ghost.py`
 
 import sys
 from pathlib import Path

adventure/seafloor/sunken_ship/stateroom/desk.py

@@ -1,4 +1,8 @@
-# This is a Python program. You can run it by typing "python desk.py"
+# desk.py
+# --------
+# By MWC Contributors
+# 
+# This is a Python program. You can run it by typing `python desk.py`
 
 import sys
 from pathlib import Path

fancy_printing.py

@@ -1,10 +1,25 @@
+# fancy_printing.py
+# -----------------
+# By MWC Contributors
+# 
+# This module defines the `fancy_printing` function, 
+# which nicely formats and prints a list of strings.
+# All the other python programs in this lab import
+# `fancy_printing`.
+
 from click import secho
 from textwrap import wrap
 
 def print_fancy(paragraphs):
+    """Formats and prints paragraphs.
+    `paragraphs` should be a list of strings.
+    """
     for paragraph in paragraphs:
         wrapped_text = wrap(paragraph, initial_indent='    ', subsequent_indent='    ')
         for line in wrapped_text:
             secho(line, fg='cyan')
         print('')
 
+if __name__ == '__main__':
+    print_fancy(["This is a just a helper program :)"])
+

return_to_ship.py

@@ -1,3 +1,9 @@
+# return_to_ship.py
+# -----------------
+# By MWC Contributors
+# 
+# This is a Python program. You should run it by typing `python return_to_ship.py`.
+
 from shutil import rmtree
 from pathlib  import Path
 from datetime import datetime