Modify the SVG output of Open Babel to potentially improve performance (it doesn't really in the end)

ModifyOBSVG.py

inputfile = open("mols_1000.svg", "r")
outputfile = open("tmp.svg", "w")

t = ""

DEFAULT, LINE = range(0, 2)
state = DEFAULT
for line in inputfile:
    t = line
    if line.startswith("<line x1"):
        if state == DEFAULT:
            outputfile.write('<g stroke="rgb(0,0,0)"  stroke-width="2.0">\n')
        state = LINE
        broken = line.split()
        t = " ".join(broken[:5]) + "/>\n"
    else:
        if state == LINE:
            outputfile.write("</g>\n")
        state = DEFAULT
    if line.startswith("font-family"):
        broken = line.split()
        t = " ".join(broken[:1] + ['font-weight="bold"'] + broken[3:]) + "\n"
    if line.startswith("<text"):
        broken = line.split()
        if broken[1].startswith("x="):
            t = " ".join(broken[0:4] + broken[6:]) + "\n"
    outputfile.write(t)

    oldt = t