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POTypeError: must be string without null bytes, not str
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  1. POTypeError: must be string without null bytes, not str
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    copied!<p>I'm trying to run this code, to run the same command (with little changes) with every frame that I have:</p> <pre><code>traj.reset() import os #os.chdir(outname) for i, frame in enumerate(traj): frame.superpose() comando = "python hollow.py -c constraint -o hollow_%s.pdb urei%s.pdb" % (i, i) os.system(comando) pml_cmd = "pymol urei%s.pdb hollow_%s.pdb -c -d 'as cartoon, urei%s;color gray90, urei%s;center chain A;set_view (\-0.605158150,0.089404292,0.791067421,\0.795849979,0.093013920,0.598304033,\-0.020089993,0.991641700,-0.127439827,\0.000000000,0.000000000,-202.017959595,\-28.771762848,-7.683309555,10.745590210,\-568.485290527,972.520690918,-20.000000000);bg white;as sphere, hollow_%s;color cyan, hollow_%s;ray;save urei%s.png' " % (i, i, i, i, i, i, i) os.system(pml_cmd) #remove = "rm urei%s.pdb hollow_%s.pdb" % (i, i) #os.system(remove) os.chdir("../") </code></pre> <p>I run this and I get this error:</p> <hr> <pre><code>TypeError Traceback (most recent call last) &lt;ipython-input-8-53cd3e7bd107&gt; in &lt;module&gt;() 7 os.system(comando) 8 pml_cmd = "pymol urei%s.pdb hollow_%s.pdb -c -d 'as cartoon, urei%s;color gray90, urei%s;center chain A;set_view (\-0.605158150,0.089404292,0.791067421,\0.795849979,0.093013920,0.598304033,\-0.020089993,0.991641700,-0.127439827,\0.000000000,0.000000000,-202.017959595,\-28.771762848,-7.683309555,10.745590210,\-568.485290527,972.520690918,-20.000000000);bg white;as sphere, hollow_%s;color cyan, hollow_%s;ray;save urei%s.png' " % (i, i, i, i, i, i, i) ----&gt; 9 os.system(pml_cmd) 10 #remove = "rm urei%s.pdb hollow_%s.pdb" % (i, i) 11 #os.system(remove) TypeError: must be string without null bytes, not str </code></pre> <p>I searched in internet, but I can't find a good answer.</p>
 

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