Buffer_ is not a symbol name prefix used by python.
readelf -a ./libpython2.7/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 | grep
PyBuffer_
0000004e2b08 037400000006 R_X86_64_GLOB_DAT 0000000000540a40 PyBuffer_Type + 0
408: 0000000000175c90 381 FUNC GLOBAL DEFAULT 12
PyBuffer_FromReadWriteObj
416: 0000000000175c10 122 FUNC GLOBAL DEFAULT 12 PyBuffer_FromMemory
816: 0000000000175960 381 FUNC GLOBAL DEFAULT 12 PyBuffer_FromObject
884: 0000000000540a40 392 OBJECT GLOBAL DEFAULT 23 PyBuffer_Type
889: 0000000000052260 135 FUNC GLOBAL DEFAULT 12 PyBuffer_GetPointer
1024: 0000000000052170 82 FUNC GLOBAL DEFAULT 12 PyBuffer_Release
1084: 00000000001758c0 154 FUNC GLOBAL DEFAULT 12 PyBuffer_New
1334: 000000000005ad00 297 FUNC GLOBAL DEFAULT 12
PyBuffer_FromContiguous
1345: 0000000000175b90 122 FUNC GLOBAL DEFAULT 12
PyBuffer_FromReadWriteMem
1382: 00000000000522f0 678 FUNC GLOBAL DEFAULT 12 PyBuffer_IsContiguous
1412: 000000000005ae30 297 FUNC GLOBAL DEFAULT 12 PyBuffer_ToContiguous
1472: 00000000000521d0 132 FUNC GLOBAL DEFAULT 12
PyBuffer_FillContiguousSt
1520: 0000000000053640 182 FUNC GLOBAL DEFAULT 12 PyBuffer_FillInfo
If it was PyBuffer_ then maybe it would have come from python itself.
ujson appears to be compiled extension, did you missbuilt it?
And it itself defines this
FASTCALL_ATTR INLINE_PREFIX void FASTCALL_MSVC Buffer_AppendShortHexUnchecked
(char *outputOffset, unsigned short value)
{
*(outputOffset++) = g_hexChars[(value & 0xf000) >> 12];
*(outputOffset++) = g_hexChars[(value & 0x0f00) >> 8];
*(outputOffset++) = g_hexChars[(value & 0x00f0) >> 4];
*(outputOffset++) = g_hexChars[(value & 0x000f) >> 0];
}
Which is possibly now inlined, instead of being an exported symbol?
Compiler can choose to do that.
BTW. python-ujson is available on ubuntu bionic
$ sudo apt install python-ujson
$ python2 -c 'import ujson; print ujson'
<module 'ujson' from
'/usr/lib/python2.7/dist-packages/ujson.x86_64-linux-gnu.so'>
I am afraid this is a bug with pip's ujson, not with ubuntu's python2.
The one that we provide is the same version 1.35. Maybe you can remove
your self-built / pip install ujson and install our distro provided one
instead with sudo apt install python-ujson?
** Changed in: python2.7 (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1856753
Title:
python 2.7.17-1~18.04 causes ImportError in ujson.so
Status in python2.7 package in Ubuntu:
Invalid
Bug description:
With python 2.7.17, ujson==1.35 does not install from PyPI properly.
This was not a problem with 2.7.15-4ubuntu4~18.04.2.
The root cause is likely during the `bdist_wheel` operation, as a whl
built with python 2.7.15 will install and function under 2.7.17.
Steps to reproduce are as follows; I have been reproducing this in the
ubuntu/bionic Docker container:
apt-get update && apt-get -y install python-pip python2.7-dev
pip install ujson
python -c "import ujson"
The resulting error is:
ImportError: /usr/local/lib/python2.7/dist-packages/ujson.so:
undefined symbol: Buffer_AppendShortHexUnchecked
A diff of dpkg-query -W between working and failing containers
follows. (this is from the full environment, not the MCVE above --
therefore unrelated packages are shown in the diff).
--- packages.ok 2019-12-17 13:31:58.782715627 -0600
+++ packages.fail 2019-12-17 13:28:36.060153358 -0600
@@ -34,8 +34,8 @@
gcc-7-base:amd64 7.4.0-1ubuntu1~18.04.1
gcc-8-base:amd64 8.3.0-6ubuntu1~18.04.1
gir1.2-glib-2.0:amd64 1.56.1-1
-git 1:2.17.1-1ubuntu0.4
-git-man 1:2.17.1-1ubuntu0.4
+git 1:2.17.1-1ubuntu0.5
+git-man 1:2.17.1-1ubuntu0.5
gnupg 2.2.4-1ubuntu1.2
gnupg-l10n 2.2.4-1ubuntu1.2
gnupg-utils 2.2.4-1ubuntu1.2
@@ -150,10 +150,10 @@
libpython-all-dev:amd64 2.7.15~rc1-1
libpython-dev:amd64 2.7.15~rc1-1
libpython-stdlib:amd64 2.7.15~rc1-1
-libpython2.7:amd64 2.7.15-4ubuntu4~18.04.2
-libpython2.7-dev:amd64 2.7.15-4ubuntu4~18.04.2
-libpython2.7-minimal:amd64 2.7.15-4ubuntu4~18.04.2
-libpython2.7-stdlib:amd64 2.7.15-4ubuntu4~18.04.2
+libpython2.7:amd64 2.7.17-1~18.04
+libpython2.7-dev:amd64 2.7.17-1~18.04
+libpython2.7-minimal:amd64 2.7.17-1~18.04
+libpython2.7-stdlib:amd64 2.7.17-1~18.04
libpython3-dev:amd64 3.6.7-1~18.04
libpython3-stdlib:amd64 3.6.7-1~18.04
libpython3.6:amd64 3.6.9-1~18.04
@@ -249,9 +249,9 @@
python-six 1.11.0-2
python-wheel 0.30.0-0.2
python-xdg 0.25-4ubuntu1
-python2.7 2.7.15-4ubuntu4~18.04.2
-python2.7-dev 2.7.15-4ubuntu4~18.04.2
-python2.7-minimal 2.7.15-4ubuntu4~18.04.2
+python2.7 2.7.17-1~18.04
+python2.7-dev 2.7.17-1~18.04
+python2.7-minimal 2.7.17-1~18.04
python3 3.6.7-1~18.04
python3-asn1crypto 0.24.0-1
python3-cffi-backend 1.11.5-1
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