Command: sudo pip install -r requirements.txt
running build_ext
building 'gevent.core' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/gevent
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c gevent/core.c -o build/temp.linux-x86_64-2.7/gevent/core.o
In file included from gevent/core.c:253:0:
gevent/libevent.h:9:19: fatal error: event.h: No such file or directory
#include "event.h"
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;file='/tmp/pip_build_root/gevent/setup.py';exec(compile(getattr(tokenize, 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record /tmp/pip-a8ZjvC-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/gevent
Storing debug log for failure in /home/vagrant/.pip/pip.log