I am aware that this question was asked many times. I have tried all known recipes but still have a problem.
So, I have created clear environment. Then pip install lxml with an error:
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/libxml2 -Isrc/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
In file included from src/lxml/lxml.etree.c:85:0:
/usr/include/python2.7/Python.h:8:22: fatal error: pyconfig.h: No such file or directory
compilation terminated.
Compile failed: command 'x86_64-linux-gnu-gcc' failed with exit status 1
creating tmp
cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c /tmp/xmlXPathInitRwrJxg.c -o tmp/xmlXPathInitRwrJxg.o
/tmp/xmlXPathInitRwrJxg.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
main (int argc, char **argv) {
^
cc tmp/xmlXPathInitRwrJxg.o -lxml2 -o a.out
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Cleaning up...
Command /home/andriy/PROJECTS/delete/env/bin/python2 -c "import setuptools, tokenize;__file__='/tmp/pip-build-XHiH0Y/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-zuYS3W-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/andriy/PROJECTS/delete/env/include/site/python2.7 failed with error code 1 in /tmp/pip-build-XHiH0Y/lxml
Traceback (most recent call last):
File "/home/andriy/PROJECTS/delete/env/bin/pip", line 11, in <module>
sys.exit(main())
File "/home/andriy/PROJECTS/delete/env/local/lib/python2.7/site-packages/pip/__init__.py", line 248, in main
return command.main(cmd_args)
File "/home/andriy/PROJECTS/delete/env/local/lib/python2.7/site-packages/pip/basecommand.py", line 161, in main
text = '\n'.join(complete_log)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 68: ordinal not in range(128)
I should say that I have successfully installed lxml on environment with Python3. Moreover, I have already been successfully installing lxml package to other environments earlier. But now something broke.
Any ideas how to solve it with Python2.7?
It is the second day of torments and I am about to reinstall my Ubuntu.
SOLUTION
Below Padraic Cunningham solved my problem. Log directly indicates that the problem is caused by the absence of file pyconfig.h in the system. It is the file of python-dev package. However, this package was already installed. So, it is naturally to assume that the package is corrupter and should be reinstalled with sudo apt-get install --reinstall python-dev libpython2.7-dev. Additionally libpython2.7-dev was reinstalled. After that file pyconfig.h appeared in correct place and pip install lxlm successfully installed the lxml package.