Quick reference to the Python environment settings.
| Variable | Means what |
|---|---|
| Usage: | Note that cookies are set before sending "Content-type:text/html\r\n\r\n". |
| Expires | The date the cookie will expire. If this is blank, the cookie will expire when the visitor quits the browser. |
| Domain | The domain name of the site that sets the cookie. |
| Path | The path to the directory or web page that sets the cookie. This may be blank if you want to retrieve the cookie from any directory or page. |
| Secure | If this field contains the word "secure" the cookie may only be retrieved with a secure server. If this field is blank, no such restriction exists. |
| Name=Value | Cookies are set and retrieved in the form of key and value pairs. |
| Variable | Means what |
|---|---|
| Content-type: | A MIME string defining the format of the file being returned. Example is "Content-type:text/html"". |
| Expires: Date | The date the information becomes invalid. It is used by the browser to decide when a page needs to be refreshed. A valid date string is in the format 01 Jan 1998 12:00:00 GMT. |
| Location: URL | The URL that is returned instead of the URL requested. You can use this field to redirect a request to any file. |
| Last-modified: Date | The date of last modification of the resource. |
| Content-length: N | The length, in bytes, of the data being returned. The browser uses this value to report the estimated download time for a file. |
| Set-Cookie: String | Set the cookie passed through the string. |
| Variable | Means what |
|---|---|
| CONTENT_TYPE | The data type of the content. Used when the client is sending attached content to the server. For example, file upload. |
| CONTENT_LENGTH | The length of the query information. It is available for POST requests only. |
| HTTP_COOKIE | Returns the set cookies in the form of key and value pairs. |
| HTTP_USER_AGENT | The User-Agent request-header field contains information about the user agent originating the request. It is name of the web browser. |
| PATH_INFO | The path to the CGI script. |
| QUERY_STRING | The URL-encoded information that is sent with GET method request. |
| REMOTE_ADDR | The IP address of the remote host making the request. This is useful logging or for authentication. |
| REMOTE_HOST | The fully qualified name of the host making the request. If this information is not available, then REMOTE_ADDR can be used to get IR address. |
| REQUEST_METHOD | The method used to make the request. The most common methods are GET and POST. |
| SCRIPT_FILENAME | The full path to the CGI script. |
| SCRIPT_NAME | The name of the CGI script. |
| SERVER_NAME | The server's hostname or IP Address. |
| SERVER_SOFTWARE | The name and version of the software the server is running. |
More: