Attribute error while executing python script


A

ali hanif

Hi i am a student and working on GNU..I have a python code which i want to
run in GNU radio companion but i am unable to search for the right block to
execute that code...can anyone help me with that??When I execute the same
python code(not in GNU), I get the following error:

AttributeError: 'top_block_sptr' object has no attribute 'wxgui_'

If anyone knows about this,plz send a mail to (e-mail address removed)....thnx
in advance..the code is as shown:

#!/usr/bin/env pythonfrom gnuradio import blocksfrom gnuradio import
eng_notationfrom gnuradio import grfrom gnuradio import uhd#from
gnuradio import windowfrom gnuradio.eng_option import eng_option#from
gnuradio.gr import firdesfrom gnuradio.wxgui import formsfrom
gnuradio.wxgui import waterfallsink2from grc_gnuradio import wxgui as
grc_wxguifrom optparse import OptionParserimport wx
class top_block(grc_wxgui.top_block_gui):
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Top Block")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
###
###############################################
self.variable_slider_1 = variable_slider_1 = 32
self.variable_slider_0 = variable_slider_0 = 0
self.samp_rate = samp_rate = 21e6
self.gain = gain = variable_slider_1
self.delay_length = delay_length= variable_slider_0
##################################################
# Blocks
##################################################
self.wxgui_waterfallsink2_0_0 = waterfallsink2.waterfall_sink_c(
self.GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Output Waterfall Plot",
)
self.GridAdd(self.wxgui_waterfallsink2_0_0.win, 0, 10, 10, 10)
self.wxgui_
waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Input Waterfall Plot",
)
self.GridAdd(self.wxgui_waterfallsink2_0.win, 0, 0, 10, 10)
_variable_slider_1_sizer = wx.BoxSizer(wx.VERTICAL)
self._variable_slider_1_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_variable_slider_1_sizer,
value=self.variable_slider_1,
callback=self.set_variable_slider_1,
label="Output Gain",
converter=forms.float_converter(),
proportion=0,
)
self._variable_slider_1_slider = forms.slider(
parent=self.GetWin(),
sizer=_variable_slider_1_sizer,
value=self.variable_slider_1,
callback=self.set_variable_slider_1,
minimum=0,
maximum=32,
num_steps=31,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_variable_slider_1_sizer, 12, 10, 1, 9)
_variable_sl
ider_0_sizer = wx.BoxSizer(wx.VERTICAL)
self._variable_slider_0_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_variable_slider_0_sizer,
value=self.variable_slider_0,
callback=self.set_variable_slider_0,
label="Delay Length",
converter=forms.int_converter(),
proportion=0,
)
self._variable_slider_0_slider = forms.slider(
parent=self.GetWin(),
sizer=_variable_slider_0_sizer,
value=self.variable_slider_0,
callback=self.set_variable_slider_0,
minimum=0,
maximum=710000,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=int,
proportion=1,
)
self.GridAdd(_variable_slider_0_sizer, 10, 10, 1, 9)
self.uhd_usrp_source_0 = uhd.usrp_source(
device_addr="",
stream_args=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(2.28e9, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.uhd_usrp_sink_0 = uhd.usrp_sink(
device_addr="",
stream_args
=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
self.uhd_usrp_sink_0.set_center_freq(2.28e9, 0)
self.uhd_usrp_sink_0.set_gain(gain, 0)
self.gr_file_source_0_0 = gr.file_source(
gr.sizeof_gr_complex*1,"/home/ubuntu/radar-rx3.capture", True)
self.gr_file_source_0 =
gr.file_source(gr.sizeof_gr_complex*1,"/home/ubuntu/radar-rx3.capture",
True)
self.gr_delay_0_0 = gr.delay(gr.sizeof_gr_complex*1, delay_length)
self.blocks_mult
iply_xx_0 = blocks.multiply_vcc(1)
##################################################
# Connections
##################################################
self.connect((self.uhd_usrp_source_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.gr_file_source_0_0, 0), (self.gr_delay_0_0, 0))
self.connect((self.gr_file_source_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.gr_delay_0_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.uhd_usrp_sink_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.wxgui_waterfallsink2_0_0, 0))
def get_variable_slider_1(self):
return self.variable_slider_1
def set_variable_slider_1(self, variable_slider_1):
self.variable_slider_1 = variable_slider_1
self.set_gain(self.variable_slider_1)
self._variable_slider_1_slider.set_value(self.variable_slider_1)
self._variable_slider_1_text_box.set_value(self.variable_slider_1)

def get_variable_slider_0(self):
return self.variable_slider_0
def set_variable_slider_0(self, variable_slider_0):
self.variable_slider_0 = variable_slider_0
self.set_delay_length(self.variable_slider_0)
self._variable_slider_0_slider.set_value(self.variable_slider_0)
self._variable_slider_0_text_box.set_value(self.variable_slider_0)
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_waterfallsink2_0.set_sample_rate(self.samp_rate)
self.wxgui_waterfallsink2_0_0.set_sample_rate(self.samp_rate)
self.uhd_usrp_sink_0.set_samp_rate(self.samp_rate)
self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
def get_gain(self):
return self.gain
def set_gain(self, gain):
self.gain = gain
self.uhd_usrp_sink_0.set_gain(self.gain, 0)
def get_delay_length(self):
return self.delay_length
def set_delay_length(self, delay_length):
self.delay_length = delay_length
self.gr_delay_0_0.set_delay(self.delay_length)if __name__ == '__main__':
parser = OptionParser(option_class=eng_option,usage="%prog: [options]")
(options, args) = parser.parse_args()
tb = top_block()
tb.Run(True)

ALI
 
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