[PR PATCH] s3cmd: backport Python 3.9 compatibility fix

[Logarithmus <Logarithmus@users.noreply.github.com>]

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There is a new pull request by Logarithmus against master on the void-packages repository

https://github.com/Logarithmus/void-packages s3cmd
https://github.com/void-linux/void-packages/pull/26347

s3cmd: backport Python 3.9 compatibility fix
https://github.com/s3tools/s3cmd/issues/1146 is fixed in `master` by https://github.com/s3tools/s3cmd/pull/1137. This PR adds corresponding patch.

A patch file from https://github.com/void-linux/void-packages/pull/26347.patch is attached

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From 7f7e28134d33c714d34e0aba813ae9cbb0c357bf Mon Sep 17 00:00:00 2001
From: Artur Sinila <opensource@logarithmus.dev>
Date: Fri, 13 Nov 2020 11:08:47 +0300
Subject: [PATCH] s3cmd: backport Python 3.9 compatibility fix

---
 .../patches/python-3.9-compatibility.patch    | 36 +++++++++++++++++++
 srcpkgs/s3cmd/template                        |  4 +--
 2 files changed, 38 insertions(+), 2 deletions(-)
 create mode 100644 srcpkgs/s3cmd/patches/python-3.9-compatibility.patch

diff --git a/srcpkgs/s3cmd/patches/python-3.9-compatibility.patch b/srcpkgs/s3cmd/patches/python-3.9-compatibility.patch
new file mode 100644
index 00000000000..292d979aa29
--- /dev/null
+++ b/srcpkgs/s3cmd/patches/python-3.9-compatibility.patch
@@ -0,0 +1,36 @@
+--- S3/Exceptions.py
++++ S3/Exceptions.py
+@@ -126,7 +126,7 @@ class S3Error (S3Exception):
+         if not error_node.tag == "Error":
+             error_node = tree.find(".//Error")
+         if error_node is not None:
+-            for child in error_node.getchildren():
++            for child in error_node:
+                 if child.text != "":
+                     debug("ErrorXML: " + child.tag + ": " + repr(child.text))
+                     info[child.tag] = child.text
+--- S3/Utils.py
++++ S3/Utils.py
+@@ -64,9 +64,9 @@ def parseNodes(nodes):
+     retval = []
+     for node in nodes:
+         retval_item = {}
+-        for child in node.getchildren():
++        for child in node:
+             name = decode_from_s3(child.tag)
+-            if child.getchildren():
++            if list(child):
+                 retval_item[name] = parseNodes([child])
+             else:
+                 found_text = node.findtext(".//%s" % child.tag)
+@@ -122,8 +122,8 @@ __all__.append("getListFromXml")
+ 
+ def getDictFromTree(tree):
+     ret_dict = {}
+-    for child in tree.getchildren():
+-        if child.getchildren():
++    for child in tree:
++        if list(child):
+             ## Complex-type child. Recurse
+             content = getDictFromTree(child)
+         else:
diff --git a/srcpkgs/s3cmd/template b/srcpkgs/s3cmd/template
index 4ec5cf053a8..40cd669dc97 100644
--- a/srcpkgs/s3cmd/template
+++ b/srcpkgs/s3cmd/template
@@ -1,14 +1,14 @@
 # Template file for 's3cmd'
 pkgname=s3cmd
 version=2.1.0
-revision=2
+revision=3
 build_style=python3-module
 hostmakedepends="python3-setuptools"
 depends="python3-dateutil"
 short_desc="Command line tool for Amazon S3"
 maintainer="Duncaen <duncaen@voidlinux.org>"
 license="GPL-2.0-or-later"
-#changelog="https://github.com/s3tools/s3cmd/raw/master/NEWS"
+changelog="https://github.com/s3tools/s3cmd/raw/master/NEWS"
 homepage="http://s3tools.org/s3cmd"
 distfiles="https://github.com/s3tools/${pkgname}/archive/v${version}.tar.gz"
 checksum=2293f775fde77201bf8e489f20516fd594168c77897168f129e5c1a2b33b7e37