import time, calendar, re
font = "${font Ubuntu:size=12}"
localtime = time.localtime(time.time())
calendar.setfirstweekday(calendar.MONDAY)
cal = calendar.month(localtime[0], localtime[1])
parts = cal.split('\n')
cal = '${font Ubuntu:size=14}' + '\n${font Ubuntu:size=14}'.join(parts)
regex = '(?<= )%s(?= )|(?<=\n)%s(?= ). | (?<= )%s(?=\n)' % (localtime[2], localtime[2], localtime[2])
replace = '${color FF0000}%s${color white}' % localtime[2]
newCal = re.sub(regex, replace, cal)

xftfont URW Gothic L:size=10
text_buffer_size 2048
use_xft yes
background no
cpu_avg_samples 2
net_avg_samples 2
no_buffers yes
out_to_stderr no
update_interval 1.0
uppercase no
#use_spacer none
alignment tl
gap_x 5
gap_y 5
TEXT
${execpi 3 /home/fil/conky/cal.py}