I am trying to import forex tick data into backtrader. It has the following shape:

20181202 170009143,1.135000,1.135500,0
20181202 170042643,1.134960,1.135460,0
20181202 170116393,1.134970,1.135470,0
20181202 170137393,1.134850,1.135350,0

The format is YYYYMMDD HHMMSSfff,Bid,Ask,Volume

Volume is always zero as forex doesn't report trade volume. Here is my code (copied from documentation):

from __future__ import (absolute_import, division, print_function,
                        unicode_literals)

import argparse

import backtrader as bt
import backtrader.feeds as btfeeds


def runstrat():
    args = parse_args()

    # Create a cerebro entity
    cerebro = bt.Cerebro(stdstats=False)

    # Add a strategy
    cerebro.addstrategy(bt.Strategy)

    # Load the Data
    datapath = args.dataname or './DAT_ASCII_EURUSD_T_201812.csv'

    data = btfeeds.GenericCSVData(
        dataname=datapath,
        dtformat='%Y%m%d %H%M%S%f',
        timeframe=bt.TimeFrame.Ticks,
    )

    # Handy dictionary for the argument timeframe conversion
    tframes = dict(
        ticks=bt.TimeFrame.Ticks,
        microseconds=bt.TimeFrame.MicroSeconds,
        seconds=bt.TimeFrame.Seconds,
        minutes=bt.TimeFrame.Minutes,
        daily=bt.TimeFrame.Days,
        weekly=bt.TimeFrame.Weeks,
        monthly=bt.TimeFrame.Months)

    # Resample the data
    data = cerebro.resampledata(data,
                                timeframe=tframes[args.timeframe],
                                compression=args.compression)

    # add a writer
    cerebro.addwriter(bt.WriterFile, csv=True)

    # Run over everything
    cerebro.run()

    # Plot the result
    cerebro.plot(style='bar')


def parse_args():
    parser = argparse.ArgumentParser(
        description='Resampling script down to tick data')

    parser.add_argument('--dataname', default='', required=False,
                        help='File Data to Load')

    parser.add_argument('--timeframe', default='ticks', required=False,
                        choices=['ticks', 'microseconds', 'seconds',
                                 'minutes', 'daily', 'weekly', 'monthly'],
                        help='Timeframe to resample to')

    parser.add_argument('--compression', default=1, required=False, type=int,
                        help=('Compress n bars into 1'))

    return parser.parse_args()


if __name__ == '__main__':
    runstrat()

My goal is to successfully import this data but I'm getting "IndexError: list index out of range" and "backtrader/feeds/csvgeneric.py", line 148, in _loadline csvfield = linetokens[csvidx]"

I also would like to understand how to create tick volume when compressing this data into a timeframe.

Any help is appreciated (I'm a python noob)