Upstream: Yes
Source: https://github.com/AGProjects/python3-xcaplib/commit/066759cf355b152375767bee4c3858dc0b8087e4

From 066759cf355b152375767bee4c3858dc0b8087e4 Mon Sep 17 00:00:00 2001
From: Worawut Boonpeang <worawut@ag-projects.com>
Date: Fri, 4 Dec 2020 13:49:54 +0000
Subject: [PATCH] xcaplib (Python3) work with eventlib

---
 xcaplib/green.py      |  4 +++-
 xcaplib/xcapclient.py | 10 ++++++++--
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/xcaplib/green.py b/xcaplib/green.py
index 237d9d8..d01ee11 100644
--- a/xcaplib/green.py
+++ b/xcaplib/green.py
@@ -2,6 +2,8 @@
 from eventlib.green import socket, ssl, httplib, urllib2
 from xcaplib import httpclient
 from xcaplib import client
+import urllib
+import http
 
 
 class HTTPConnection(httplib.HTTPConnection):
@@ -22,7 +24,7 @@ def http_open(self, req):
 
 class HTTPSHandler(urllib.request.HTTPSHandler):
     def https_open(self, req):
-        return self.do_open(HTTPSConnection, req)
+        return self.do_open(http.client.HTTPSConnection, req)
 
 
 class HTTPClient(httpclient.HTTPClient):
diff --git a/xcaplib/xcapclient.py b/xcaplib/xcapclient.py
index cd409df..384c237 100755
--- a/xcaplib/xcapclient.py
+++ b/xcaplib/xcapclient.py
@@ -129,6 +129,8 @@ def setup_parser_request(parser):
     parser.add_option('--etag', help="perform a conditional operation", metavar='ETAG')
     parser.add_option('--add-header', dest='headers',
                       action='append', default=[], help=optparse.SUPPRESS_HELP)
+    parser.add_option("--eventlib", dest='eventlib_enable',
+                      help="Enables non-blocking mode using eventlib library")
     parser.add_option("-i", dest='input_filename',
                       help="source file for the PUT request; default is <stdin>")
     parser.add_option("-o", dest='output_filename',
@@ -366,7 +368,11 @@ def update_options_from_config(options):
                 setattr(options, key, value)
 
 def parse_args():
-    argv = sys.argv[1:]
+    argv = None
+    if "--eventlib" in sys.argv[1:]:
+        argv = sys.argv[2:]
+    else:
+        argv = sys.argv[1:]
 
     if not argv:
         sys.exit('Type %s -h for help.' % sys.argv[0])
@@ -496,7 +502,7 @@ def get_exit_code(http_error):
         return 3
 
 def main():
-    if sys.argv[0].endswith('-eventlib'):
+    if "--eventlib" in sys.argv[1:]:
         from xcaplib.green import XCAPClient as client_class
     else:
         client_class = XCAPClient