style: format code with autopep8

Format code with autopep8

This commit fixes the style issues introduced in 338bc38 according to the output
from Autopep8.

Details: None

Author: deepsource-autofix[bot]

Personal Finance Manager/personal_finance_manager.py

@@ -2,6 +2,7 @@
 import matplotlib.pyplot as plt
 from datetime import datetime
 
+
 def track_expenses():
     date = input("Enter the date (YYYY-MM-DD): ")
     description = input("Enter the expense description: ")
@@ -11,20 +12,24 @@ def track_expenses():
     try:
         df = pd.read_csv("expenses.csv")
     except FileNotFoundError:
-        df = pd.DataFrame(columns=["Date", "Description", "Amount", "Category"])
+        df = pd.DataFrame(
+            columns=["Date", "Description", "Amount", "Category"])
 
-    df = df.append({"Date": date, "Description": description, "Amount": amount, "Category": category}, ignore_index=True)
+    df = df.append({"Date": date, "Description": description,
+                   "Amount": amount, "Category": category}, ignore_index=True)
     df.to_csv("expenses.csv", index=False)
 
     print("Expense added successfully!")
 
+
 def view_expenses():
     try:
         df = pd.read_csv("expenses.csv")
         print(df)
     except FileNotFoundError:
         print("No expenses found.")
 
+
 def generate_spending_report():
     try:
         df = pd.read_csv("expenses.csv")
@@ -39,12 +44,14 @@ def generate_spending_report():
     except FileNotFoundError:
         print("No expenses found.")
 
+
 def set_budget():
     budget = float(input("Enter your budget amount: "))
     with open("budget.txt", "w") as file:
         file.write(str(budget))
     print("Budget set successfully!")
 
+
 def reset_monthly_budget():
     now = datetime.now()
     first_day_of_month = now.replace(day=1).strftime("%Y-%m-%d")
@@ -53,6 +60,7 @@ def reset_monthly_budget():
 
     print("Monthly budget and expenses reset successfully.")
 
+
 def check_budget():
     try:
         with open("budget.txt", "r") as file:
@@ -64,6 +72,7 @@ def check_budget():
     except FileNotFoundError:
         print("Budget not set. Please set a budget first.")
 
+
 def visualize_expense_distribution():
     try:
         df = pd.read_csv("expenses.csv")
@@ -79,6 +88,7 @@ def visualize_expense_distribution():
     except FileNotFoundError:
         print("No expenses found.")
 
+
 def main():
     while True:
         print("\nPersonal Finance Manager Menu:")