Debugging Tips: Fix Lua & Python Script Errors Fast

-- Error example
local player = nil
print(player.Name) -- Error: attempt to index nil value (global 'player')

-- Safe pattern
local player = Players:FindFirstChild("Virus")
if player then
    print(player.Name) -- Only runs if player exists
end

-- Error example
local result = myFunction() -- Error if myFunction was never defined

-- Error example
local function countdown(n)
    print(n)
    return countdown(n - 1) -- Never hits a base case!
end
countdown(10) -- Error: stack overflow

-- Fixed version
local function countdown(n)
    if n <= 0 then return end -- Base case
    print(n)
    return countdown(n - 1)
end

-- Error example (missing 'end')
local function greet(name)
    if name then
        print("Hello, " .. name)
    -- Missing 'end' for the if block and for the function

# Error example
print(username)  # NameError: name 'username' is not defined

Traceback (most recent call last):
  File "script.py", line 2, in <module>
    print(username)
NameError: name 'username' is not defined

# Error example
age = "25"
next_year = age + 1  # TypeError: can only concatenate str (not "int") to str

Traceback (most recent call last):
  File "script.py", line 3, in <module>
    next_year = age + 1
TypeError: can only concatenate str (not "int") to str

age = "25"
next_year = int(age) + 1  # Works correctly → 26

# Error example
def greet(name):
print("Hello, " + name)  # IndentationError: expected an indented block

def greet(name):
    print("Hello, " + name)  # Correctly indented

with open("data/report.csv", "r") as f:
    content = f.read()
# FileNotFoundError: [Errno 2] No such file or directory: 'data/report.csv'

-- Lua example
print("Health before damage:", health)
health = health - damage
print("Health after damage:", health)

# Python example
print(f"Processing file: {filename}")
print(f"Row count before filter: {len(df)}")

print(type(myValue))  -- Lua: prints "string", "number", "table", etc.

print(type(my_value))  # Python: prints <class 'str'>, <class 'int'>, etc.