not ascii characters in Cookies

[kox-solid]

I need to pass a cookie with non-ascii characters to Client:

from httpx import Client, Cookies

cookies = Cookies()
cookies.set("blablalba", "sprühkopf", "example.com")

with Client(cookies=cookies) as client:
    response = client.get("https://example.com")

raise UnicodeEncodeError: 'ascii' codec can't encode character '\xfc' in position 13: ordinal not in range(128) in Headers.setitem()

Class Headers has a mechanism to switch to "iso-8859-1" encoding for situations like this, but it only works during a session. Class Request creates a new instance of Headers with "ascii" encoding by default, so there are no methods to set a different encoding other than Monkey Patching.

Maybe I'm wrong?

[SonderZhong]

You can try the following methods, which may solve your problem.
#3238

[kox-solid]

You can try the following methods, which may solve your problem.
Thanks for your interest, but it can't solve my problem because your method doesn't change the encoding, which is the problem.

[ketpatil77]

Cookie values are not arbitrary Unicode header text. Changing the header encoding would not define how the server interprets a non-ASCII cookie value. If you control both ends, agree on an ASCII-safe value encoding, for example UTF-8 percent encoding:

from urllib.parse import quote, unquote
import httpx

cookies = httpx.Cookies()
cookies.set("blablalba", quote("sprühkopf", safe=""), domain="example.com")

request = httpx.Request("GET", "https://example.com", cookies=cookies)
assert request.headers["cookie"] == "blablalba=spr%C3%BChkopf"
assert unquote(cookies.get("blablalba", domain="example.com")) == "sprühkopf"

The percent decoding above is part of your application protocol; a server is not required to decode cookie values automatically. If the destination requires a particular existing cookie representation, follow its documented encoding instead. This does not make an opaque, server-issued session token interchangeable with a re-encoded token.

Checked the outgoing ASCII Cookie header and the explicit round trip on HTTPX 0.28.1. This avoids private-header monkey patches but requires agreement with the receiving application. Cookies API.

Validation: HTTPX 0.28.1, Python 3.11.9.