Bethel

library/library.py

@@ -41,7 +41,7 @@ def add_book(filename, isbn, title, author):
     # In the space below, write code that adds the key isbn
     # and the value {'title':title, 'author':author}
     # to the books object.
-
+    book['isbn'] = [{'student':student, 'book':book}, f]
     # Finally, write code that writes the new data to the library
     # Do we need to return anything?
     pass
@@ -52,7 +52,8 @@ def remove_book(filename, isbn):
 
     # How can we *remove* an item from a dictionary?
     # Write code to delete the book keyed by isbn in the space below
-
+    if 'isbn' in remove_book:
+        del remove_book['isbn']
     # Now write code that saves the new version of the data to your library
     pass
 
@@ -62,7 +63,7 @@ def check_out(filename, isbn, s_id):
 
     # Find a way to mark a book as checked out. Be sure to associate
     # the book with the student who borrowed it!
-
+   f.__setitem__("filename",checked out) 
 
     # And again save the data here
 
@@ -71,7 +72,7 @@ def check_out(filename, isbn, s_id):
 
 def return_book(filename, isbn):
     students, books = open_library(filename)
-
+    
     # Now ensure that the book is no longer checked out and save the changes
     # to the library.
 

library/library/library.py

@@ -0,0 +1,88 @@
+import json 
+
+
+def open_library(filename):
+    # Create empty dictionaries just in case the library file is empty
+    students = {}
+    books = {}
+
+    # Open the library file encoded in JSON and load it into the data object
+    # We use the with keyword so we don't have to explicitly close the file
+    # later.
+    #
+    # Alternatively you could use:
+    #
+    #  f = open(filename)
+    #  data = json.load(f)
+    #  f.close()
+    #
+    # and accomplish the same thing.
+
+    with open(filename) as f:
+        data = json.load(f)
+
+    # If there are students or books in the library,
+    # overwrite the empty dictionaries we created
+    if data['students'] != {}:
+        students = data['students']
+
+    if data['books'] != {}:
+        books = data['books']
+
+    # Return the data we loaded from the file
+    return students, books
+
+
+def add_book(filename, isbn, title, author):
+    # Here's a start
+    students, books = open_library(filename)
+
+    # Now how can we add books to the data?
+    # In the space below, write code that adds the key isbn
+    # and the value {'title':title, 'author':author}
+    # to the books object.
+
+    # Finally, write code that writes the new data to the library
+    # Do we need to return anything?
+    pass
+
+
+def remove_book(filename, isbn):
+    students, books = open_library(filename)
+
+    # How can we *remove* an item from a dictionary?
+    # Write code to delete the book keyed by isbn in the space below
+
+    # Now write code that saves the new version of the data to your library
+    pass
+
+
+def check_out(filename, isbn, s_id):
+    students, books = open_library(filename)
+
+    # Find a way to mark a book as checked out. Be sure to associate
+    # the book with the student who borrowed it!
+
+
+    # And again save the data here
+
+    pass
+
+
+def return_book(filename, isbn):
+    students, books = open_library(filename)
+
+    # Now ensure that the book is no longer checked out and save the changes
+    # to the library.
+
+    pass
+
+
+def status(filename):
+    students, books = open_library(filename)
+    # Print out two lists - one of all books currently checked out,
+    # and one of all available books.
+
+    pass
+
+