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How to setup cookies in Python CGI Programming?
Cookies in Python CGI programming allow you to store small pieces of data on the client's browser. Setting cookies is straightforward − they are sent as HTTP headers before the Content-type field.
Setting Basic Cookies
Cookies are set using the Set-Cookie HTTP header. Here's how to set UserID and Password cookies ?
#!/usr/bin/python3
print("Set-Cookie:UserID=XYZ;\r\n")
print("Set-Cookie:Password=XYZ123;\r\n")
print("Content-type:text/html\r\n\r\n")
print("<html><body>")
print("<h1>Cookies have been set!</h1>")
print("</body></html>")
Setting Cookies with Attributes
You can specify additional attributes like expiration date, domain, and path for better cookie control ?
#!/usr/bin/python3
print("Set-Cookie:UserID=XYZ;\r\n")
print("Set-Cookie:Password=XYZ123;\r\n")
print("Set-Cookie:Expires=Tuesday, 31-Dec-2025 23:12:40 GMT;\r\n")
print("Set-Cookie:Domain=www.tutorialspoint.com;\r\n")
print("Set-Cookie:Path=/;\r\n")
print("Content-type:text/html\r\n\r\n")
print("<html><body>")
print("<h1>Cookies with attributes have been set!</h1>")
print("</body></html>")
Cookie Attributes
| Attribute | Purpose | Example |
|---|---|---|
| Expires | Sets cookie expiration date | Tuesday, 31-Dec-2025 23:12:40 GMT |
| Domain | Specifies which domain can access the cookie | www.tutorialspoint.com |
| Path | Defines the URL path where cookie is valid | / |
Key Points
- Cookies must be set before the Content-type header
- The
Set-Cookieheader format is:Set-Cookie:name=value;attribute=value; - Cookie attributes like Expires, Domain, and Path are optional
- Each cookie requires a separate
Set-Cookieheader
Conclusion
Setting cookies in Python CGI is done using Set-Cookie headers before the Content-type header. Optional attributes like expiration, domain, and path provide additional control over cookie behavior.
Updated on: 2026-03-24T20:00:37+05:30
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