From d414239704c3cbb7f65fb2f07bb0b270138dc3c7 Mon Sep 17 00:00:00 2001
From: Clod <claudio.grasso@yahoo.com>
Date: Mon, 6 May 2024 12:42:11 -0300
Subject: [PATCH]        tokenizer name="whitespace"/>

---
 Work/bounce.py   |  7 +++++
 Work/mortgage.py | 23 ++++++++++++++++
 Work/pcost.py    | 25 +++++++++++++++++
 Work/report.py   | 71 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 126 insertions(+)

diff --git a/Work/bounce.py b/Work/bounce.py
index 3660ddd82..31ffe1a93 100644
--- a/Work/bounce.py
+++ b/Work/bounce.py
@@ -1,3 +1,10 @@
 # bounce.py
 #
 # Exercise 1.5
+
+height = 100
+
+for i in range(1,11):
+    height = height * 3 / 5
+    print(round(height, 4))
+
diff --git a/Work/mortgage.py b/Work/mortgage.py
index d527314e3..17ad2c02b 100644
--- a/Work/mortgage.py
+++ b/Work/mortgage.py
@@ -1,3 +1,26 @@
 # mortgage.py
 #
 # Exercise 1.7
+
+principal = 500000.0
+rate = 0.05
+payment = 2684.11
+total_paid = 0.0
+months = 0
+extra_payment_start_month = 61
+extra_payment_end_month = 108
+extra_payment = 1000
+
+while principal > 0:
+    if (months < extra_payment_start_month or months > extra_payment_end_month):
+        principal = principal * (1+rate/12) - payment
+        total_paid = total_paid + payment
+    else:
+        principal = principal * (1+rate/12) - payment - extra_payment
+        total_paid = total_paid + payment + extra_payment
+    print(round(total_paid,2),round(principal,2))
+    months += 1
+
+print('Total paid', round(total_paid,2), '.')
+print('Months: ', months)
+
diff --git a/Work/pcost.py b/Work/pcost.py
index e68aa20b4..16c8e29b9 100644
--- a/Work/pcost.py
+++ b/Work/pcost.py
@@ -1,3 +1,28 @@
 # pcost.py
 #
 # Exercise 1.27
+
+#import os
+import sys
+
+# print ("Current directory: ", os.getcwd())
+def portfolio_cost(filename):
+    total = 0
+    # with open('Work/Data/portfolio.csv', 'rt') as f:
+    with open(filename, 'rt') as f:
+        next(f)
+        for line in f:
+            row = line.split(',')
+            try:
+                total += float(row[1]) * float(row[2])
+            except ValueError:
+                print('Could not parse: ', line)
+    return total
+
+if len(sys.argv) == 2:
+    filename = sys.argv[1]
+else:
+    filename = 'Work/Data/portfolio.csv'
+
+total = portfolio_cost(filename)
+print("Total cost ", round(total, 2))
diff --git a/Work/report.py b/Work/report.py
index 47d5da7b1..8b0a68891 100644
--- a/Work/report.py
+++ b/Work/report.py
@@ -1,3 +1,74 @@
 # report.py
 #
 # Exercise 2.4
+import csv
+
+def read_portfolio(filename):
+
+    portfolio = []
+
+    with open(filename, 'rt') as f:
+        rows = csv.reader(f)
+        next(rows)
+        for row in rows:
+            holding = (row[0], int(row[1]), float(row[2]))
+            portfolio.append(holding)
+    return portfolio
+
+def read_portfolio_dict(filename):
+
+    portfolio = []
+
+    with open(filename, 'rt') as f:
+        rows = csv.reader(f)
+        headers = next(rows)
+        for row in rows:
+            holding = {}
+            holding[headers[0]] = row[0]
+            holding[headers[1]] = int(row[1])
+            holding[headers[2]] = float(row[2])
+            portfolio.append(holding)
+    return portfolio
+
+def read_prices(filename):
+
+    prices = {}
+
+    with open(filename, 'rt') as f:
+        rows = csv.reader(f)
+        for row in rows:
+            if (len(row) > 0):
+                prices[row[0]] = float(row[1]) 
+    return prices
+
+def make_report(stocks, prices):
+    report = []
+    prices = read_prices('Data/prices.csv')
+    stocks = read_portfolio_dict('Data/portfolio.csv')
+    for line in stocks:
+        #print(line, prices[line['name']], line['price'] - prices[line['name']])
+        #tupla = (line['name'], line['shares'], prices[line['name']],line['price'] - prices[line['name']])
+        report.append((line['name'], line['shares'], prices[line['name']],line['price'] - prices[line['name']]))
+    return report
+
+#print(read_prices('Data/prices.csv'))
+stocks = []
+prices = {}
+
+report = make_report(stocks, prices)
+
+'''
+for r in report:
+    print('%10s %10d %10.2f %10.2f' % r)
+'''
+
+headers = ('Name', 'Shares', 'Price', 'Change')
+
+print(f'{headers[0]:>10s}{headers[1]:>11s}{headers[2]:>11s}{headers[3]:>11s}')
+#print(f'{"-" * len(headers[0]):>10s}{"-" * len(headers[1]):>11s}{"-" * len(headers[2]):>11s}{"-" * len(headers[3]):>11s}')
+print('---------- ---------- ---------- -----------')
+
+for name, shares, price, change in report:
+    #print(f'{name:>10s} {shares:>10d} {price:>10.2f} {change:>10.2f}')
+    print(f'{name:>10s} {shares:>10d} {"$"+str(price):>10s} {change:>10.2f}')
+