IMU-Camera calibration: Export poses fails

[Youras]

Hello,
When I try to perform the IMU-camera calibration with the argument --export_poses an error is thrown at line:
print >> f, "t x y z r11 r12 r13 r21 r22 r23 r31 r32 r33"

I think the function exportPoses is deprecated and needs fixing.

[goldbattle]

kalibr/aslam_offline_calibration/kalibr/python/kalibr_imu_camera_calibration/IccUtil.py

Lines 202 to 214 in c528449

	def exportPoses(cself, filename="poses_imu0.csv"):
	f = open(filename, 'w')
	print >> f, "t x y z r11 r12 r13 r21 r22 r23 r31 r32 r33"
	imu = cself.ImuList[0]
	bodyspline = cself.poseDv.spline()
	times = np.array([im.stamp.toSec() + imu.timeOffset for im in imu.imuData \
	if im.stamp.toSec() + imu.timeOffset > bodyspline.t_min() \
	and im.stamp.toSec() + imu.timeOffset < bodyspline.t_max() ])
	for time in times:
	position = bodyspline.position(time)
	orientation = bodyspline.orientation(time)
	print >> f, time, ' '.join(map(str, position)), \
	' '.join(map(str, orientation.reshape(-1)))