human
Complete the below
def graph_dot(specs, deptype=None, static=False, out=None):

    ''''Generate a graph in dot format of all provided specs.
    Print out a dot formatted graph of all the dependencies between
    package.  Output can be passed to graphviz, e.g.:
    spack graph --dot qt | dot -Tpdf > spack-graph.pdf'
    '''

=====
Give me a Python program to print out a dot formatted graph of all the dependencies between?
assistant
#Here is Python program to print out a dot formatted graph of all the dependencies between
.
    if (out is None):
        out = sys.stdout
    if (deptype is None):
        deptype = alldeps
    out.write('digraph    G    {\n')
    out.write('        labelloc    =    "b"\n')
    out.write('        rankdir    =    "TB"\n')
    out.write('        ranksep    =    "5"\n')
    out.write('node[\n')
    out.write('                    fontname=Monaco,\n')
    out.write('                    penwidth=2,\n')
    out.write('                    fontsize=12,\n')
    out.write('                    margin=.1,\n')
    out.write('                    shape=box,\n')
    out.write('                    fillcolor=lightblue,\n')
    out.write('                    style="rounded,filled"]\n')
    out.write('\n')
    def q(string):
        return ('"%s"' % string)
    if (not specs):
        raise ValueError('Must    provide    specs    ot    graph_dot')
    if static:
        names = set.union(*[s.package.possible_dependencies() for s in specs])
        specs = [Spec(name) for name in names]
    labeled = set()
    def label(key, label):
        if (key not in labeled):
            out.write(('        "%s"    [label="%s"]\n' % (key, label)))
            labeled.add(key)
    deps = set()
    for spec in specs:
        if static:
            out.write(('        "%s"    [label="%s"]\n' % (spec.name, spec.name)))
            if spec.virtual:
                continue
            for (dep_name, dep) in iteritems(spec.package.dependencies):
                deps.add((spec.name, dep_name))
            for provider in set((s.name for s in spec.package.provided)):
                deps.add((provider, spec.name))
        else:
            def key_label(s):
                return (s.dag_hash(), ('%s/%s' % (s.name, s.dag_hash(7))))
            for s in spec.traverse(deptype=deptype):
                (skey, slabel) = key_label(s)
                out.write(('        "%s"    [label="%s"]\n' % (skey, slabel)))
                for d in s.dependencies(deptype=deptype):
                    (dkey, _) = key_label(d)
                   ...