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POPython RuntimeError: More keyword list entries (5) than format specifiers (1)
 

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  1. POPython RuntimeError: More keyword list entries (5) than format specifiers (1)
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    <p>I am trying to develop a Simple Sound2Light Application for my Raspberry Pi in Python. I'm using the Impulse Library written by Ian Halpern (<a href="https://github.com/ianhalpern/Impulse" rel="nofollow">https://github.com/ianhalpern/Impulse</a>)</p> <p>However I first tried to extract 3 Values (Sub,Mid,Hi) from the Audio Array Impulse is delivering me.</p> <p>This is the Code:</p> <pre><code>#!/usr/bin/env python import sys, os, time import impulse def draw ( ): fft = True audio_sample_array = impulse.getSnapshot( fft ) if fft: ffted_array = list( audio_sample_array ) # start drawing spectrum red = 0 green = 0 blue = 0 for i in range(0,20): blue += ffted_array[i] for i in range(21,41): green += ffted_array[i] for i in range(42,62): red += ffted_array[i] print red, print blue, print green return False def main(args): try: while True: draw() time.sleep(1) except KeyboardInterrupt: pass return True if __name__ == '__main__': try: import ctypes libc = ctypes.CDLL('libc.so.6') libc.prctl(15, os.path.split( sys.argv[ 0 ] )[ 1 ], 0, 0, 0) except: pass sys.exit( main( sys.argv ) ) main( sys.argv ) </code></pre> <p>However this Code ist Running flawlessly on my Laptop (archlinux x64 python 2.7)</p> <pre><code>[felix@felix-think impulse]$ python2 --version Python 2.7.3 </code></pre> <p>but fails to run on my Rapsberry Pi (Running Raspbian)</p> <pre><code>pi@raspberrypi ~/music2light $ python --version Python 2.7.3 </code></pre> <p>This is the ErrorMessage</p> <pre><code>pi@raspberrypi ~/music2light $ python main.py Traceback (most recent call last): File "main.py", line 56, in &lt;module&gt; sys.exit( main( sys.argv ) ) File "main.py", line 40, in main draw() File "main.py", line 21, in draw for i in range(0,20): RuntimeError: More keyword list entries (5) than format specifiers (1) </code></pre> <p>I'm tried to Google for it but found nothing... The only thing I found out is, that the Error is thrown by the getargs.c File (<a href="http://svn.python.org/projects/python/branches/release27-maint/Python/getargs.c" rel="nofollow">http://svn.python.org/projects/python/branches/release27-maint/Python/getargs.c</a>)</p> <pre><code>if (IS_END_OF_FORMAT(*format)) { PyErr_Format(PyExc_RuntimeError, "More keyword list entries (%d) than " "format specifiers (%d)", len, i); return cleanreturn(0, freelist); } </code></pre> <p>Thanks in advance for your help :) Felix</p>
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    1. PTQuestion
    1. USFelix Favre
    1. USFelix Favre
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      1. POPython RuntimeError: More keyword list entries (5) than format specifiers (1)
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      1. VTUpMod
    1. COThis might be a bug in the Impulse library - `static char *kwlist[] = { "fft" };` in `impulsemodule.c` should have a `NULL` entry in the array to signify the end (a Python requirement). But it doesn't explain why it would work on some platforms...
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      1. POPython RuntimeError: More keyword list entries (5) than format specifiers (1)
      1. USJustin Lewis
 

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