<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def identify_col_pos(txt):

 	"""
 	assume no delimiter in this file, so guess the best
 	fixed column widths to split by
 	"""

	res = []
	#res.append(0)
	lines = txt.split('\n')
	prev_ch = ''
	for col_pos, ch in enumerate(lines[0]):
		if _is_white_space(ch) is False and _is_white_space(prev_ch) is True:
			res.append(col_pos)
		prev_ch = ch
	res.append(col_pos)
	return res