49 lines
1.1 KiB
Markdown
49 lines
1.1 KiB
Markdown
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# Exercise 3.1 - Solution
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```python
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# stock.py
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class Stock:
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def __init__(self, name, shares, price):
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self.name = name
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self.shares = shares
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self.price = price
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def cost(self):
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return self.shares * self.price
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def sell(self, nshares):
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self.shares -= nshares
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def read_portfolio(filename):
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'''
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Read a CSV file of stock data into a list of Stocks
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'''
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import csv
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portfolio = []
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with open(filename) as f:
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rows = csv.reader(f)
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headers = next(rows)
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for row in rows:
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record = Stock(row[0], int(row[1]), float(row[2]))
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portfolio.append(record)
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return portfolio
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def print_portfolio(portfolio):
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'''
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Make a nicely formatted table showing stock data
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'''
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print('%10s %10s %10s' % ('name', 'shares', 'price'))
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print(('-'*10 + ' ')*3)
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for s in portfolio:
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print('%10s %10d %10.2f' % (s.name, s.shares, s.price))
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if __name__ == '__main__':
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portfolio = read_portfolio('Data/portfolio.csv')
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print_portfolio(portfolio)
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```
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[Back](ex3_1.md)
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