Sure thing! To filter out the Nostr ID public keys that have not been published in the last 7 days, you can modify the existing script by adding a check for the date difference.

Here's the updated script with the date filter:

```

import requests

import json

from datetime import datetime, timedelta

# define the input file containing the Nostr ID public keys

input_file = 'nostr_id_public_keys.txt'

# define the output directory where the results will be stored

output_dir = './data/'

# define the NIP01 API endpoint

nip01_api = 'https://nip01.nostrenostro.com'

# define the maximum date difference in days (7 days in this case)

max_diff = 7

# get the current date and time

now = datetime.now()

# loop through the Nostr ID public keys from the input file

with open(input_file, 'r') as f:

for pubkey in f.readlines():

# strip any whitespaces or newline characters from the public key

pubkey = pubkey.strip()

# construct the NIP01 API URL for the public key

nip01_url = f'{nip01_api}/api/v1/relay/{pubkey}'

# send a GET request to the NIP01 API URL

r = requests.get(nip01_url)

# parse the JSON response and extract the last publish date

try:

resp_json = json.loads(r.content.decode())

last_publish = resp_json['result']['lastPublish']

except:

print(f'Error retrieving last publish date for pubkey: {pubkey}')

continue

# convert the last publish date to a datetime object

last_publish_date = datetime.strptime(last_publish, '%Y-%m-%dT%H:%M:%S.%fZ')

# calculate the date difference from now to last publish

diff = (now - last_publish_date).days

# check if the date difference is within the limit

if diff <= max_diff:

# save the last publish date to a file

with open(output_dir + pubkey + '.txt', 'w') as f2:

f2.write(last_publish)

print(f'Last publish date ({last_publish}) saved for pubkey: {pubkey}')

else:

print(f'Pubkey: {pubkey} hasn\'t published anything within the last {max_diff} days, skipping...')

print('All public keys processed.')

```

This script will only save the last publish date for Nostr ID public keys that have been published within the last 7 days. You can adjust the value of `max_diff` to any number of days you prefer.

Hope this helps! Let me know if you have any questions.