Multi tool use

NameError: name 'Date' is not defined

I am trying the code below from the tutorial in youtube:
https://www.youtube.com/watch?v=83-_3x2AjXI&t=3s

I'm getting stuck on the following line

plt.plot_date(date, closep,'-', label='Price')


When running the script I'm getting the error message

"NameError: name 'Date' is not defined"

import matplotlib.pyplot as plt
import numpy as np
import urllib
import matplotlib.dates as mdates #date converter/date processing

def bytesdate2num(fmt, encoding='uftf-8'):
strconverter = mdates.strdate2num(fmt)
def bytesconverter(b):
s = b.decode(encoding)
return strconverter(s)
return bytesconverter


def graph_data(stock):
stock_price_url = 'https://pythonprogramming.net/yahoo_finance_replacement' #dash dash plus stock plus dash dash
source_code = urllib.request.urlopen(stock_price_url).read().decode() #add decode anytime python 'reads'
stock_data =
split_source = source_code.split('n') #split source material by line
#Foreloop
for line in split_source:
split_line = line.split(',') #split each line on comma
if len(split_line) == 6: #if there are 6 data points in split_line
if 'value' not in line and 'labels' not in line: #if the word value is not in the line
stock_data.append(line) # apned that line to stock_data

Date, closeP, highP, LowP, openP, Volume = np.loadtxt(stock_data,
delimiter=',',
unpack=True,
# %Y, %m, %d = Years, months
converters={0: bytesdate2num('%Y-%m-%d-')}) #calls on conversion function within matplotlibdates
plt.plot_date(date, closep,'-', label='Price')
plt.xlabel('Date')
plt.ylabel('Price')
plt.title('TSLA stocks')
plt.legend()
plt.grid()
plt.show()

graph_data('TLSAa')


I'm quite new to this so any help would be greatly appreciated.
If you need any further info don't hesitate to ask.

plt.plot_date

graph_data

Date

Date

date

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