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-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/finance.scm3
-rw-r--r--gnu/packages/patches/bitcoin-core-python-compat.patch28
3 files changed, 31 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index eb149cbd51..7d023c649b 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -793,6 +793,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/binutils-loongson-workaround.patch	\
   %D%/packages/patches/binutils-mingw-w64-timestamp.patch	\
   %D%/packages/patches/binutils-mingw-w64-deterministic.patch	\
+  %D%/packages/patches/bitcoin-core-python-compat.patch		\
   %D%/packages/patches/blender-2.79-newer-ffmpeg.patch		\
   %D%/packages/patches/blender-2.79-python-3.7-fix.patch	\
   %D%/packages/patches/bluez-CVE-2020-0556.patch		\
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index dfc89cae1e..6b34845441 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -110,7 +110,8 @@
                              version "/bitcoin-" version ".tar.gz"))
              (sha256
               (base32
-               "1h3w7brc18145np920vy7j5ms5hym59hvr40swdjx34fbdaisngj"))))
+               "1h3w7brc18145np920vy7j5ms5hym59hvr40swdjx34fbdaisngj"))
+             (patches (search-patches "bitcoin-core-python-compat.patch"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
diff --git a/gnu/packages/patches/bitcoin-core-python-compat.patch b/gnu/packages/patches/bitcoin-core-python-compat.patch
new file mode 100644
index 0000000000..6bf744124d
--- /dev/null
+++ b/gnu/packages/patches/bitcoin-core-python-compat.patch
@@ -0,0 +1,28 @@
+Get rid of deprecation warning emitted by Python 3.8, which causes a test failure(!).
+
+https://github.com/bitcoin/bitcoin/pull/17931
+
+Taken from upstream:
+
+https://github.com/bitcoin/bitcoin/commit/f117fb00da747147cddfb071c1427a2754c278cd
+
+diff --git a/test/functional/p2p_invalid_messages.py b/test/functional/p2p_invalid_messages.py
+index 20864881c165..07eacf410d88 100755
+--- a/test/functional/p2p_invalid_messages.py
++++ b/test/functional/p2p_invalid_messages.py
+@@ -145,13 +145,13 @@ def run_test(self):
+     def test_magic_bytes(self):
+         conn = self.nodes[0].add_p2p_connection(P2PDataStore())
+ 
+-        def swap_magic_bytes():
++        async def swap_magic_bytes():
+             conn._on_data = lambda: None  # Need to ignore all incoming messages from now, since they come with "invalid" magic bytes
+             conn.magic_bytes = b'\x00\x11\x22\x32'
+ 
+         # Call .result() to block until the atomic swap is complete, otherwise
+         # we might run into races later on
+-        asyncio.run_coroutine_threadsafe(asyncio.coroutine(swap_magic_bytes)(), NetworkThread.network_event_loop).result()
++        asyncio.run_coroutine_threadsafe(swap_magic_bytes(), NetworkThread.network_event_loop).result()
+ 
+         with self.nodes[0].assert_debug_log(['PROCESSMESSAGE: INVALID MESSAGESTART ping']):
+             conn.send_message(messages.msg_ping(nonce=0xff))