[Discuss-gnuradio] Two simple questions

[Brook Lin]

Hi All,

I am new here. I met two questions after installing gnuradio-3.1.1. I know
they are simple questions, but I really don't know how to fix it and need
your help. I am using fc7. I follow the Fedora installation instructions on
the website, install every package it mentions. After installing gnuradio, I
run several scripts to test the USRP. test_usrp_standard_rx works well and
load the firmware, usrp_benchmark_usb.py shows that the Max USB/USRP
throughput is 32MB/sec. However, when I run usrp_fft.py, it gives the error
like: 
=========================
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

(usrp_oscope.py:22536): Gtk-WARNING **: cannot open display: 
=========================
Can anybody explain this for me? I really appreciate any help!

Here is the 2nd question. I am using python2.5, and installing wxPython via
synaptic. However, when I try to check wx.__version__, I met another error:
=========================
$ python
Python 2.5 (r25:51908, Oct 19 2007, 09:46:41) 
[GCC 4.1.2 20070925 (Red Hat 4.1.2-27)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import wx
>>> print wx.__version__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute '__version__'
============================

I appreciate any reply.

Brook
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