Python Challenge

PythonChallenge/PyBank/main.py

@@ -1 +1,59 @@
+import csv
+from statistics import mean
 
+# Function to get a list of the data rows as dictionaries
+def getCvsFile(fileName):
+	rows = list()
+	with open(fileName, "r") as file:
+		reader = csv.DictReader(file)
+		for row in reader:
+			rows.append(row)
+	return rows
+
+# Function to write to both Console and File
+def printAndFile(message, f):
+	print(message)
+	print(message, file = f)
+
+
+# The Data
+bankDataRows = getCvsFile("PyBank_budget_data.csv")
+
+# Here, we calculate both the number of months and the total of the profit/losses
+numberOfMonths = len(bankDataRows)
+total = 0
+for row in bankDataRows:
+	total += int(row["Profit/Losses"])
+
+# In this block, we calculate the rest of the data.
+# We are gonna store the month-by-month difference in a list, and work from there
+differences = list()
+greatestProfit = 0
+greatestLoss = 0
+for i in range(len(bankDataRows) - 1):
+	data1 = int(bankDataRows[i]["Profit/Losses"])
+	data2 = int(bankDataRows[i+1]["Profit/Losses"])
+	diff = data2 - data1
+	if diff > greatestProfit:
+		greatestProfit = diff
+		greatestProfitDate = bankDataRows[i+1]["Date"]
+	if diff < greatestLoss:
+		greatestLoss = diff
+		greatestLossDate = bankDataRows[i+1]["Date"]
+	differences.append(diff)
+
+average = round( mean(differences), 2 )
+
+
+# Print to both the Console and a File
+with open("PyBankResults.txt", "w") as file:
+	printAndFile("Financial Analysis", file)
+	printAndFile("-----------------------------", file)
+
+	printAndFile(f"Total number of months: {numberOfMonths}", file)
+	printAndFile(f"Total: {total}", file)
+	printAndFile(f"Average Change: {average}", file)
+	printAndFile(f"Greatest increase in Profits: {greatestProfitDate} (${greatestProfit})", file)
+	printAndFile(f"Greatest decrease in Profits: {greatestLossDate} (${greatestLoss})", file)
+
+print()

PythonChallenge/PyBankResults.txt

@@ -0,0 +1,7 @@
+Financial Analysis
+-----------------------------
+Total number of months: 86
+Total: 38382578
+Average Change: -2315.12
+Greatest increase in Profits: Feb-2012 ($1926159)
+Greatest decrease in Profits: Sep-2013 ($-2196167)