FastCGI parameters are encoded using ASCII instead of UTF-8

[che2116]

Hi,
Thanks for the library — it's very useful!

I encountered an issue related to parameter encoding. When sending FastCGI requests, the library encodes parameters using ASCII:

File: FastCGIClient.py, function: __encodeNameValueParams, code line: 169

        return record + bytearray(str(name).encode('ascii')) + bytearray(str(value).encode('ascii'))

This causes a problem when parameters contain non-ASCII characters (e.g., in SCRIPT_FILENAME, QUERY_STRING, or custom headers), resulting in a UnicodeEncodeError.

According to the FastCGI specification and common usage (e.g., PHP-FPM, Nginx), UTF-8 should be used for encoding strings in most environments.

Suggested fix:

Update the encoding line to:

        return record + bytearray(str(name).encode('utf-8')) + bytearray(str(value).encode('utf-8'))

Let me know if you’d like a pull request — I’d be happy to help!

[wuyunfeng]

@che2116 Hi, pull request is good to me, Thanks