aws volume all info python

import boto3

# Define the connection
ec2 = boto3.resource('ec2', region_name="us-west-2")

# Find all volumes
volumes = ec2.volumes.all()

# Loop through all volumes and pass it to ec2.Volume('xxx')
for vol in volumes:
    #iv = ec2.Volume(str(vol.id))
    formatted_tags = []

    if vol.tags:
        for _ in vol.tags:
             tag_string = '{}({})'.format(_.get('Key'), _.get('Value'))
             formatted_tags.append(tag_string)

    if formatted_tags:
        comma = ','	
    else:
	comma = ''

    print "created(" + str(vol.create_time) + "),availability_zone(" + str(vol.availability_zone) + "),volumeid(" + str(vol.volume_id) + "),volumetype(" + str(vol.volume_type) + "),state(" + str(vol.state) + "),size(" + str(vol.size) + "),iops(" + str(vol.iops) + "),isencrypted(" + str(vol.encrypted) + "),snapshotid(" + str(vol.snapshot_id) + "),kms_keyid(" + str(vol.kms_key_id) + "),instanceid(" + str(vol.attachments[0]['InstanceId']) + "),instancevolumestate(" + str(vol.attachments[0]['State']) + "),deleteonterminationprotection(" + str(vol.attachments[0]['DeleteOnTermination']) + "),device(" + str(vol.attachments[0]['Device']) + ")" + comma + ','.join(formatted_tags)

How can I remove the space character before the , character from if I'm getting the following output.
Created(2015-07-14 20:22:38.829000+00:00),AZ(us-west-2c),VolumeID(vol-e1111111),VolumeType(gp2),State(in-use),Size(8),IOPS(100),IsEncrypted(False),SnapshotID(snap-bd977777),KMS_KEYID(None) ,InstanceID(i-e2222222),InstanceVolumeState(attached),DeleteOnTerminationProtection(True),Device(/dev/sda1) ,generation(2015071401) ,high_availability(1) ,hostname(Gamer-2a-ha1-2015071401) ,Name([Gamer-2a-ha1] 2015071401) ,chef_nodename(Gamer-2a-ha1-2015071401) ,role(ha) ,cluster(Gamer)

Version 4 fixed it.