[myhdl-list] always_comb exception

[Steve V. <ste...@ea...>]

Hi Folks - I'm just wetting my feet with myhdl and have run into a problem
running the simple latch example from the wiki. I'm running python 2.7 with
myhdl v0.8. If anyone can offer some insight I'd appreciate it. Here's a
variant of the problem:

def Mux(z, a, b, sel):
   @always_comb
   def muxLogic():
     if sel == 1:
       z.next = a
     else:
       z.next = b
   return muxLogic 
>>> z, a, b, sel = [Signal(0) for i in range(4)]
>>> mux_1 = Mux(z,a,b,sel)

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 2, in Mux
  File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line
64, in always_comb
    c = _AlwaysComb(func, symdict)
  File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line
185, in __init__
    s = inspect.getsource(func)
  File "/usr/lib/python2.7/inspect.py", line 701, in getsource
    lines, lnum = getsourcelines(object)
  File "/usr/lib/python2.7/inspect.py", line 690, in getsourcelines
    lines, lnum = findsource(object)
  File "/usr/lib/python2.7/inspect.py", line 538, in findsource
    raise IOError('could not get source code')
IOError: could not get source code

Steve