Initial commit

Solutions/3_2/stock.py

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+# stock.py
+
+class Stock:
+    def __init__(self, name, shares, price):
+        self.name = name
+        self.shares = shares
+        self.price = price
+
+    def cost(self):
+        return self.shares * self.price
+
+    def sell(self, nshares):
+        self.shares -= nshares
+
+
+def read_portfolio(filename):
+    '''
+    Read a CSV file of stock data into a list of Stocks
+    '''
+    import csv
+    portfolio = []
+    with open(filename) as f:
+        rows = csv.reader(f)
+        headers = next(rows)
+        for row in rows:
+            record = Stock(row[0], int(row[1]), float(row[2]))
+            portfolio.append(record)
+    return portfolio
+
+if __name__ == '__main__':
+    import tableformat
+    portfolio = read_portfolio('../../Data/portfolio.csv')
+    tableformat.print_table(portfolio, ['name','shares','price'])

Solutions/3_2/tableformat.py

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+# tableformat.py
+
+# Print a table
+def print_table(records, fields):
+    print(' '.join('%10s' % fieldname for fieldname in fields))
+    print(('-'*10 + ' ')*len(fields))
+    for record in records:
+        print(' '.join('%10s' % getattr(record, fieldname) for fieldname in fields))