parse a simple key-value data structure

parse_kv.py

example = """
start 
{ 
    position1 "-1022.963745,793.409607,8.966581" 
    position2 "-1024.971558,70.542549,416.005066" 
    name "Start" 
    time 0.0 
    active 1 
    give 
    { 
        item "flashlight" 
        weapon "rpg" 
        ammo 
        { 
            amount 20 
            type "rocket" 
        } 
    } 
}
"""

def parse(itr):
    kv = {}
    for line in itr:
        line = line.strip()
        if " " in line:
            key, value = line.split(" ", 1)
            value = value.strip()
            if value[0] == '"' and value[-1] == '"': kv[key] = value[1:-1]
            else: kv[key] = float(value) if "." in value else int(value)
        elif line == "{":
            kv[name] = parse(itr)
        elif line == "}":
            break
        elif line:
            name = line
    return kv
    
print parse(iter(example.splitlines()))