Thank you! This is what I was hoping to accomplish.
> To: tutor@python.org
> From: __pete...@web.de
> Date: Tue, 26 Apr 2016 14:13:56 +0200
> Subject: Re: [Tutor] Using a dictionary to map functions
>
> Colby Christensen wrote:
>
> > templist = []
> > pt_table = {}
> > cmd_table = {5:"store_point", 19: "line_line_int"}
>
> As Alan says, the values should be functions rather than function names.
> You could use string keys to save both the re.search() check and the
> conversion to integer.
>
> > count = 0
> >
> > for line in infile:
> > #print line
> > line = line.rstrip()
> > if re.search('^[0-9]+', line):
> > a = line.split()
> > templist.append(a)
> >
> > for line in templist:
> > #use dictionary to call and pass arguments to function
>
> You could put parsing and evaluation into the same loop, and avoid the
> temporary list:
>
> cmd_table = {"5": store_point, ...}
> for line in infile:
> args = line.split()
> cmd = args.pop(0) # remove the first item from args
> if cmd in cmd_table:
> func = cmd_table[cmd]
> func(*args) # see below
> else:
> # optional, but may help with debugging
> print("Command {!r} not recognized. "
> "Skipping line {!r}.".format(cmd, line), file=sys.stderr)
>
>
> Given a list 'args' with N items the expression
>
> func(*args)
>
> is equivalent to
>
> func(args[0], args[1], ..., args[N-1])
>
> e. g.
>
> foo = ["one", "two"]
> bar(*foo)
>
> passes the same arguments as
>
> bar("one", "two")
>
>
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