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gh-100519: simplification to eff_request_host in cookiejar.py (#99588)

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`IPV4_RE` includes a `.`, and the `.find(".") == -1` included here is already testing to make sure there's no dot, so this part of the expression is tautological. Instead use more modern `in` syntax to make it clear what the check is doing here. The simplified implementation more clearly matches the wording in RFC 2965.

Co-authored-by: hauntsaninja <hauntsaninja@gmail.com>
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Glyph 2022-12-24 16:14:51 -08:00 • committed by GitHub
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Lib/http/cookiejar.py
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@ -640,7 +640,7 @@ def eff_request_host(request):
""" """
erhn = req_host = request_host(request) erhn = req_host = request_host(request)
if req_host.find(".") == -1 and not IPV4_RE.search(req_host): if "." not in req_host:
erhn = req_host + ".local" erhn = req_host + ".local"
return req_host, erhn return req_host, erhn

2
Misc/NEWS.d/next/Library/2022-12-24-16-39-53.gh-issue-100519.G_dZLP.rst Normal file
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@ -0,0 +1,2 @@
Small simplification of :func:`http.cookiejar.eff_request_host` that
improves readability and better matches the RFC wording.