ImportError: /usr/lib64/libsvn_swig_py-1.so.0: undefined symbol: PyCapsule_Import

I just installed svn 1.8.14, and the python bindings appear to be broken on Red Hat Enterprise Linux Server release 6.7 (Santiago). When running a hook script, the is the error that from google searches points to the bindings being compiled with a later version of python (rather than 2.6). Commit blocked by pre-commit hook (exit code 1) with output: Traceback (most recent call last): File "/svn/hooks/contrib/hook-scripts/case-insensitive.py", line 67, in from svn import repos, fs File "/usr/lib64/python2.6/site-packages/svn/repos.py", line 26, in from libsvn.repos import * File "/usr/lib64/python2.6/site-packages/libsvn/repos.py", line 26, in _repos = swig_import_helper() File "/usr/lib64/python2.6/site-packages/libsvn/repos.py", line 22, in swig_import_helper _mod = imp.load_module('_repos', fp, pathname, description) ImportError: /usr/lib64/libsvn_swig_py-1.so.0: undefined symbol: PyCapsule_Import Here is the rpm information: # rpm -qiv subversion Name : subversion Relocations: /usr Version : 1.8.14 Vendor: WANdisco Inc Release : 1 Build Date: Thu 13 Aug 2015 07:56:14 AM MDT Install Date: Fri 21 Aug 2015 10:45:23 AM MDT Build Host: centos-60-x86-64.shdc.wandisco.com Group : Utilities/System Source RPM: subversion-1.8.14-1.src.rpm Size : 7864595 License: Apache 2.0 Signature : DSA/SHA1, Fri 14 Aug 2015 03:57:18 AM MDT, Key ID e9f0e9223bbf077a Packager : WANdisco Inc URL : [URL]http://www.wandisco.com[/URL] # rpm -qiv subversion-python Name : subversion-python Relocations: /usr Version : 1.8.14 Vendor: WANdisco Inc Release : 1 Build Date: Thu 13 Aug 2015 07:56:14 AM MDT Install Date: Fri 21 Aug 2015 10:45:24 AM MDT Build Host: centos-60-x86-64.shdc.wandisco.com Group : Utilities/System Source RPM: subversion-1.8.14-1.src.rpm Size : 6313643 License: Apache 2.0 Signature : DSA/SHA1, Fri 14 Aug 2015 03:57:19 AM MDT, Key ID e9f0e9223bbf077a Packager : WANdisco Inc URL : [url]http://www.wandisco.com[/url] Summary : Allows Python scripts to directly use Subversion repositories. % svn --version svn, version 1.8.14 (r1692801) % python --version Python 2.6.6 Is there a way to find out how the bindings were compiled, or does anybody have an idea how I can fix this issue? Thank you, Jon

Last updated 5 years ago

Just adding a "me, too" here. CentOS 6.; 2.6.32-573.3.1.el6.x86_64; up-to-date as of 8/31/2015. Downgrading to 1.8.13-1 fixes things. Looks like Amazon had similar issues ( [url]https://forums.aws.amazon.com/thread.jspa?threadID=174605[/url] ) a few months ago...

Another "me, too". Also downgraded to 1.8.13-1.

I thought I had posted this earlier, but couldn't find it. Subversion now uses the PyCapsule API which is only available in Python 2.7. I was able to work around the API incompatibility for python2.6 by following the guide at [url]https://docs.python.org/2/howto/cporting.html[/url] for supporting Capsule API in Python 2.6. I am posting here in the hope this can be included in future builds and to help other users. capsulethunk.h: [url]https://hg.python.org/cpython/raw-file/2.7/Doc/includes/capsulethunk.h[/url] capsulethunk.patch: [CODE] --- subversion/bindings/swig/python/libsvn_swig_py/swigutil_py.h 2015-12-15 19:40:06.000000000 -0800 +++ subversion/bindings/swig/python/libsvn_swig_py/swigutil_py.h 2015-12-15 19:34:05.000000000 -0800 @@ -39,6 +39,8 @@ #include "svn_client.h" #include "svn_repos.h" +#include "capsulethunk.h" + /* Define DLL export magic on Windows. */ #ifdef __cplusplus extern "C" { [/CODE] find_python.patch: [CODE] --- build/find_python.sh 2015-12-15 20:07:28.000000000 -0800 +++ build/find_python.sh 2015-12-15 20:07:45.000000000 -0800 @@ -21,7 +21,7 @@ # # Required version of Python -VERSION=${1:-0x2070000} +VERSION=${1:-0x2060000} for pypath in "$PYTHON" "$PYTHON2" "$PYTHON3" python python2 python3; do if [ "x$pypath" != "x" ]; then [/CODE] subversion-1.9.x.spec.patch: [CODE] --- subversion-1.9.x.spec 2015-12-08 08:59:20.000000000 -0800 +++ subversion-1.9.x.spec 2015-12-15 20:09:01.000000000 -0800 @@ -10,6 +10,10 @@ %define swig_version 1.3.29 %define apache_dir /usr %define pyver 2.6 +%define svn_version 1.9.3 +%define svn_source subversion-%{svn_version}.tar.gz +%define svn_rc "" +%define svn_release 1 %define perl_siteprefix %(eval "`%{__perl} -V:installarchlib`"; echo $installarchlib) @@ -24,10 +28,13 @@ Source: %{svn_source} Source1: sqlite-amalgamation-3071602.zip Source2: subversion.conf +Source3: capsulethunk.h %if %{with timestamp} Patch0: timestamp-replication-v5-1.8.txt %endif +Patch1: capsulethunk.patch +Patch2: find_python.patch Vendor: WANdisco Inc Packager: WANdisco Inc @@ -73,7 +80,7 @@ *** Note: This is a relocatable package; it can be installed anywhere you like with the "rpm -Uvh --prefix /your/favorite/path" command. This is useful -if you don't have root access on your machine but would like to use this +if you do not have root access on your machine but would like to use this package. %if !%{without devel} @@ -147,6 +154,9 @@ %prep %setup -n subversion-%{version}%{svn_rc} %{?_with_timestamp:%patch0 -p0} +cp %SOURCE3 subversion/bindings/swig/python/libsvn_swig_py/ +%patch1 -p0 +%patch2 -p0 echo "Putting SQLite in to place" rm -rf sqlite-amalgamation @@ -170,7 +180,7 @@ --with-apache-libexecdir=yes \ --with-gnome-keyring \ --enable-javahl \ - --with-jdk=/opt/jdk \ + --with-jdk=/usr/java/latest \ --without-jikes \ --with-sqlite=sqlite-amalgamation/sqlite3.c \ --enable-runtime-module-search \ [/CODE] Regards, Satya