I am attempting to organize live data coming in from IBs TWS API into a Pandas dataframe however I'm getting that some names not defined

Question

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract 
import matplotlib.pyplot as plt
import pandas as pd
import threading
import time
import datetime


        
class IBapi(EWrapper, EClient):
    def __init__(self):
        EClient.__init__(self, self)
        self.data = []

    def error(self, reqId, errorCode, errorString):
        print("Error: ", reqId, " ", errorCode, " ", errorString)
    
    def updateMktDepth(self, reqId, position: int, operation: int,
                       side: int, price: float, size):
        global df
        super().updateMktDepth(reqId, position, operation, side, price, size)
        self.data.append([reqId, position, operation, side, price, size])
        print("UpdateMarketDepth. ReqId:", reqId, "Position:", position, "Operation:",
              operation, "Side:", side, "Price:", price, "Size:", size) 
        
class DisconnectWrapper(EWrapper):
    def __init__(self):
        EWrapper.__init__(self)
        
    def error(self, reqId, errorCode, errorString):
        print(f"Error: {reqId} {errorCode} {errorString}")
        
        
def run_loop():
    app.run()

app = IBapi()
app.connect('127.0.0.1', 7497, 13217)

times = datetime.datetime.now()

cols = ['Time','ReqId','Position','Operation','Side','Price','Size']
data = [time,reqId,position,operation,side,price,size]
    
d2 = pd.DataFrame(data, cols)
d2 = d2.T
df = df.append(d2)
# df.to_csv(csv_file)

#Start the socket in a thread
api_thread = threading.Thread(target=run_loop, daemon=True)
api_thread.start()

time.sleep(1) #Sleep interval to allow time for connection to server

#Create contract object
contract = Contract()
contract.symbol = "SPY"
contract.secType = "STK"
contract.exchange = "ARCA"
contract.currency = "USD"

#Request Market Depth
app.reqMktDepth(1, contract, 5, False, [])

# plt.plot(df["Price"])

time.sleep(5) #sleep to allow enough time for data to be returned

client = EClient(DisconnectWrapper())
client.disconnect()
app.disconnect()

I have been attempting to organize the data received by updateMktDepth into a pandas dataframe, the data prints in the console just fine. But i cant get it into the dataframe.

Here is the error im getting:

File C:\Program Files\Spyder\pkgs\spyder_kernels\py3compat.py:356 in compat_exec exec(code, globals, locals)

File c:\users\equipo\desktop\programming finance\api tws\python\requesting live data market depth of an exchange.py:45 data = [time,reqId,position,operation,side,price,size]

NameError: name 'reqId' is not defined

Thanks!