Petr Hanák schrieb am 21.07.21 um 17:02:
LXML package states, that has minimal requirements on python - Requires: Python
>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, != 3.4.*
These were the minimum requirements that were defined at the time when the
specific package version was released. They don't mean that things will
keep working for all eternety.
Based on what I see on Travis, it seems to me, that for python 3.9.x. the
minimum stable LXML version is 4.3.x; is that expected?
Sample log:
Collecting lxml==4.2.6
Downloading lxml-4.2.6.tar.gz (2.4 MB)
Building wheels for collected packages: lxml
Building wheel for lxml (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: /home/travis/virtualenv/python3.9.1/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] =
'"'"'/tmp/pip-install-i7un6wlk/lxml_b3782dbd0b1b4611a75033d4ab809f51/setup.py'"'"';
__file__='"'"'/tmp/pip-install-i7un6wlk/lxml_b3782dbd0b1b4611a75033d4ab809f51/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"',
open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d
/tmp/pip-wheel-v441aa6c
…
…
creating build/temp.linux-x86_64-3.9/src/lxml
gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
-g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security
-fPIC -DCYTHON_CLINE_IN_TRACEBACK=0 -I/usr/include/libxml2 -Isrc
-Isrc/lxml/includes -I/home/travis/virtualenv/python3.9.1/include
-I/opt/python/3.9.1/include/python3.9 -c src/lxml/etree.c -o
build/temp.linux-x86_64-3.9/src/lxml/etree.o -w
src/lxml/etree.c: In function ‘__Pyx_modinit_type_init_code’:
src/lxml/etree.c:230310:32: error: ‘PyTypeObject {aka struct _typeobject}’
has no member named ‘tp_print’
__pyx_type_4lxml_5etree_Error.tp_print = 0;
Yes, that's expected. There were C-API changes in CPython 3.9 that prevent
older versions from compiling. Use 4.3.x. 4.2.x is no longer maintained.
Stefan
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