[Discuss-gnuradio] Problem: Reading a file

[Jason Anders]

I have a problem reading an ascii file. I tried reading it using gr_file_soucrce and extracted it using gr_vector_sink_f. Then I tried extracting the data by using  <object>.data(); or in short, by using its data member. Unfortunately, I always get an empty list. Why is this so?

Here's a snippet of code to clarify things:

FALSE = bool(0)
yrx1_real = gr.file_source(gr.sizeof_float,{file location},FALSE)
Rx1_real = gr.vector_sink_f()

## FLOW GRAPH CREATION
fg = gr.flow_graph
 ()
fg.connect (yrx1_real, Rx1_real)
fg.wait()      # Ends the flowgraph... as stated in one of the replies

## Calling the data extracted
Rx1 = Rx1_real.data()
print 'After Data extraction!'
for i in range(0,1):
    print Rx1[i]                      # I always get an empty list here. Why?