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+--- Thread: UnBoundLocalError (/thread-27230.html)
UnBoundLocalError - Seaninho - May-30-2020
Hello to everyone!
I'm trying to create a code using Python but I have a problem.
It gives me this error:
Error:File "/opt/miniconda3/bin/sfipick", line 268, in <module>
image = rsf2image(0)
File "/opt/miniconda3/bin/sfipick", line 67, in rsf2image
return img
UnboundLocalError: local variable 'img' referenced before assignmentdef rsf2image(i3):
global byte
ppm = '%s%d.ppm' % (name,i3)
if not os.path.isfile(ppm):
command = '< %s %s n3=1 f3=%d | %s %s | %s %s > %s' % \
(byte,sfwindow,i3,sfgrey,args,ppmpen,args,ppm)
if os.system(command) or not os.path.isfile(ppm):
sys.stderr.write('Failed to execute "%s"\n\n' % command)
sys.exit(3)
ppms.append(ppm)
img = PhotoImage(file=ppm)
return img
...
image = rsf2image(0)Can someone please help me with this?Thank you very much
RE: UnBoundLocalError - menator01 - May-30-2020
The error is suggesting that you are calling img before assigning it on line 67.
RE: UnBoundLocalError - pyzyx3qwerty - May-30-2020
(May-30-2020, 09:45 AM)menator01 Wrote: The error is suggesting that you are calling img before assigning it on line 67.He defines img on line 66
(May-30-2020, 08:59 AM)Seaninho Wrote: Hello to everyone!Is this your full code? The problem might be somewhere else too...
I'm trying to create a code using Python but I have a problem.
It gives me this error:
I will post here the part of the code where the problem is:
def rsf2image(i3): global byte ppm = '%s%d.ppm' % (name,i3) if not os.path.isfile(ppm): command = '< %s %s n3=1 f3=%d | %s %s | %s %s > %s' % \ (byte,sfwindow,i3,sfgrey,args,ppmpen,args,ppm) if os.system(command) or not os.path.isfile(ppm): sys.stderr.write('Failed to execute "%s"\n\n' % command) sys.exit(3) ppms.append(ppm) img = PhotoImage(file=ppm) return img ... image = rsf2image(0)Can someone please help me with this?
Thank you very much
RE: UnBoundLocalError - azajali43 - May-31-2020
You can solve UnboundLocalError by changing the scope of the variable that complains. You need to explicitly declare the global variable. The scope of the variable x in the printx function is global. You can verify the same by printing the value of x in the terminal and it will be 6.