Allow / character in username,password fields in _PROXY envvars. (#23973)
diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py
index 39974d9..e5febe6 100644
--- a/Lib/urllib/request.py
+++ b/Lib/urllib/request.py
@@ -773,7 +773,11 @@ def _parse_proxy(proxy):
raise ValueError("proxy URL with no authority: %r" % proxy)
# We have an authority, so for RFC 3986-compliant URLs (by ss 3.
# and 3.3.), path is empty or starts with '/'
- end = r_scheme.find("/", 2)
+ if '@' in r_scheme:
+ host_separator = r_scheme.find('@')
+ end = r_scheme.find("/", host_separator)
+ else:
+ end = r_scheme.find("/", 2)
if end == -1:
end = None
authority = r_scheme[2:end]