old_contents: #!/usr/bin/python
  
  # display the kernel module dependencies
  
  # author: Michael Hohn <mhhohn@lbl.gov>
  #  based on: modgraph.tcl by John Ellson <ellson@research.att.com>
  
  import sys
  sys.path.append('/usr/lib64/graphviz/python')
  sys.path.append('/usr/lib/graphviz/python')
  import gv
  
  modules = open("/proc/modules", 'r').readlines()
  
  G = gv.digraph("G")
  N = gv.protonode(G)
  E = gv.protoedge(G)
  
  gv.setv(G, 'rankdir', 'LR')
  gv.setv(G, 'nodesep', '0.05')
  gv.setv(N, 'shape', 'box')
  gv.setv(N, 'width', '0')
  gv.setv(N, 'height', '0')
  gv.setv(N, 'margin', '.03')
  gv.setv(N, 'fontsize', '8')
  gv.setv(N, 'fontname', 'helvetica')
  gv.setv(E, 'arrowsize', '.4')
  
  for rec in modules:
     fields = rec.split(' ')
     n = gv.node(G, fields[0])
     for usedby in fields[3].split(','):
        if (usedby != '-') & (usedby != ''):
           gv.edge(n, gv.node(G, usedby))
  
  gv.layout(G, 'dot')
  gv.render(G, 'xlib')
  
new_contents: #!/usr/bin/python
  
  # display the kernel module dependencies
  
  # author: Michael Hohn <mhhohn@lbl.gov>
  #  based on: modgraph.tcl by John Ellson <ellson@research.att.com>
  
  import sys
  import gv
  
  modules = open("/proc/modules", 'r').readlines()
  
  G = gv.digraph("G")
  N = gv.protonode(G)
  E = gv.protoedge(G)
  
  gv.setv(G, 'rankdir', 'LR')
  gv.setv(G, 'nodesep', '0.05')
  gv.setv(N, 'shape', 'box')
  gv.setv(N, 'width', '0')
  gv.setv(N, 'height', '0')
  gv.setv(N, 'margin', '.03')
  gv.setv(N, 'fontsize', '8')
  gv.setv(N, 'fontname', 'helvetica')
  gv.setv(E, 'arrowsize', '.4')
  
  for rec in modules:
     fields = rec.split(' ')
     n = gv.node(G, fields[0])
     for usedby in fields[3].split(','):
        if (usedby != '-') & (usedby != ''):
           gv.edge(n, gv.node(G, usedby))
  
  gv.layout(G, 'dot')
  gv.render(G, 'xlib')
  
subject: add some gv language-binding demos to the distributions