AttributeError: 'datetime.datetime' object has no attribute 'striftime' - python-3.x

Question

I am currently writing a machine learning program for school to predict the weather. I have been using this article https://stackabuse.com/using-machine-learning-to-predict-the-weather-part-1/ as my main resource (I have had to adjust as wunderground is no longer free so I have instead been using openweathermap). I was writing the data collection and organization part of my code I received the following error 'AttributeError: 'datetime.datetime' object has no attribute 'striftime'. Sorry in advance for the massive block of code, I figured it would be the best way to troubleshoot the problem. Thank you for any the help. The parts with '** code **' are what I am struggling with
from datetime import datetime
from datetime import timedelta
import time
from collections import namedtuple
import pandas as pd
import requests
import matplotlib.pyplot as plt
#Data collection and Organization
url = 'http://history.openweathermap.org//storage/d12a3df743e650ba4035d2c6d42fb68f.json'
#res = requests.get(url)
#data = res.json()
target_date = datetime(2018, 4, 22)
features = ["date", "temperature", "pressure", "humidity", "maxtemperature", "mintemperature"]
DailySummary = namedtuple("DailySummary", features)
def extra_weather_data(url, target_date, days):
for _ in range(days):
**request = url.format(target_date.striftime('%Y%m%d'))**
respone = requests.get(request)
if response.status_code == 200:
data = response.json()
records.append(DailySummary(
date = target_date,
temperature = data['main']['temp'],
pressure = data['main']['pressure'],
humidity = data['main']['humidity'],
maxtemperature = data['main']['temp_max'],
mintemperature = data['main']['temp_min']))
time.sleep(6)
target_date += timedelta(days=1)
**records = extra_weather_data(url, target_date, 365)**
#Finished data collection now begin to clean and process data using Pandas
df = pd.DataFrame(records, columns=features).set_index('date')
tmp = df[['temperature','pressure','humidty', 'maxtemperature', 'mintemperature']].head(10)
def derive_nth_day_feature(df, feature, N):
rows =df.shape[0]
nth_prior_measurements = [None]*N + [df[feature][i-N] for i in range(N,rows)]
col_name = "{}_{}".format(feature, N)
df[col_name] = nth_prior_measurements
for feature in features:
if feature != 'date':
for N in range(1, 4):
derive_nth_day_feature(df, feature, N)
df.columns