import inspect
import os
import sys
def _write_message(kind, message):
f = inspect.currentframe()
f = f.f_back.f_back
file,line,_,_,_ = inspect.getframeinfo(f)
location = '%s:%d' % (os.path.basename(file), line)
print >>sys.stderr, '%s: %s: %s' % (location, kind, message)
note = lambda message: _write_message('note', message)
warning = lambda message: _write_message('warning', message)
error = lambda message: _write_message('error', message)
fatal = lambda message: (_write_message('fatal error', message), sys.exit(1))
__all__ = ['note', 'warning', 'error', 'fatal']