As @Grubshka mentionned, it's always a good practice to make your request look like it's coming from a web browser by setting "common" headers. More infos here.
In your case though, it looks like the website you are targeting is rate-limiting based on IP address, and that 25 requests coming from the same IP in 10 minutes is exceeding their limit.
The easiest way to get around this would be to use a residential proxy, which would give you a different IP address everytime you make a request and help you avoid getting rate-limited.
Here's an example code using both anti detection headers and a proxy server:
import requests
s = requests.Session()
url = "htttps://thesiteyouraretargeting.com"
# Add common browser's header
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"Accept-Encoding": "gzip, deflate, br",
"Accept-Language": "en-US,en;q=0.5",
}
# configure a proxy server
http_proxy = "http://0.0.0.0.0:0000"
proxies = {
"http": http_proxy,
}
r = s.get(url, headers=headers, proxies=proxies)