before adding class to report

sortolavi · sortolavi · commit 05ef82e88411 · 2026-02-05T13:08:49.000+02:00
diff --git a/Work/koe.py b/Work/koe.py
@@ -0,0 +1,7 @@
+import stock
+
+with stock.open("koe.py", "r", encoding="utf-8") as f:
+    content = f.read()
+    print(content)
+print("File content read successfully.")
+
diff --git a/Work/report.py b/Work/report.py
@@ -1,6 +1,6 @@
 # report.py
 #
-# Exercise 2.4 - 2.12 - 3.16
+# Exercise 3.18
 import csv
 from pprint import pprint
 from fileparse import parse_csv
diff --git a/Work/stock.py b/Work/stock.py
@@ -0,0 +1,23 @@
+
+
+class Stock:
+
+    def __init__(self, name, shares, price):
+        self.name = name
+        self.shares = shares
+        self.price = price
+
+    def cost(self):
+        cost = self.shares * self.price
+        return cost
+
+    def sell(self, cnt):
+        self.shares -= cnt
+
+    def buy(self, cnt):
+        self.shares += cnt
+    
+    def update_price(self, price):
+        self.price = price
+
+
diff --git a/Work/using_stock.py b/Work/using_stock.py
@@ -0,0 +1,39 @@
+
+import fileparse
+import stock
+
+
+a = stock.Stock('GOOG',100,490.10)
+print(a.name)
+
+b = stock.Stock('AAPL', 50, 122.34)
+c = stock.Stock('IBM', 75, 91.75)
+
+print(b.shares * b.price)
+
+stocks = [a, b, c]
+
+
+for s in stocks:
+    print(f'{s.name:>10s} {s.shares:>10d} {s.price:>10.2f}')
+
+print(a.cost())
+
+a.sell(25)
+
+print(a.shares)
+print(a.cost())
+
+
+
+with open ('.\\Data\\portfolio.csv') as lines:
+    portdicts = fileparse.parse_csv(lines, select=['name','shares','price'], types=[str,int,float])
+
+print(portdicts)
+
+portfolio = [ stock.Stock(d['name'], d['shares'], d['price']) for d in portdicts]
+
+pf_cost = sum([s.cost() for s in portfolio])
+print (f'Total cost: {pf_cost}')
+
+

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`# report.py`
`2`	`2`	`#`
`3`		`-# Exercise 2.4 - 2.12 - 3.16`
	`3`	`+# Exercise 3.18`
`4`	`4`	`import csv`
`5`	`5`	`from pprint import pprint`
`6`	`6`	`from fileparse import parse_csv`