Initial commit

Solutions/1_3/pcost.py

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+# pcost.py
+
+total_cost = 0.0
+
+with open('../../Data/portfolio.dat', 'r') as f:
+    for line in f:
+        fields = line.split()
+        nshares = int(fields[1])
+        price = float(fields[2])
+        total_cost = total_cost + nshares * price
+
+print(total_cost)