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Revert unneccessary changes made in bpo-30296 and apply other improvements. (GH-2624)

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(cherry picked from commit 3f2e6f15d6)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2018-02-26 08:22:24 -08:00 • committed by GitHub
parent a9e0b070b3
commit f8a3485dcd
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4 changed files with 6 additions and 5 deletions
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3
Lib/urllib/request.py
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@ -1286,7 +1286,8 @@ class AbstractHTTPHandler(BaseHandler):
h.set_debuglevel(self._debuglevel)
headers = dict(req.unredirected_hdrs)
headers.update((k, v) for k, v in req.headers.items() if k not in headers)
headers.update({k: v for k, v in req.headers.items()
if k not in headers})
# TODO(jhylton): Should this be redesigned to handle
# persistent connections?