# Pyhon script not working
**URL:** https://forum.highend3d.com/t/pyhon-script-not-working/159129
**Category:** Maya
**Tags:** python
**Created:** [March 31, 2019, 12:21pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129 "2019-03-31T12:21:54Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@lala\_ghost](https://forum.highend3d.com/u/lala_ghost)
#### Post date: [March 31, 2019, 12:21pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/1 "2019-03-31T12:21:54Z")
I dont know why, but my print function in python does not work.
this is my test script:
`import maya.cmds as cmds
import sys
def todo():
sel = cmds.ls(sl=True)
sys.stdout.write(‘heloow’)
if len(sel) == 0:
sys.exit(“Not enought objects selected.”)
print sel
print (sel)
print 'asd: ’ + str(sel)
todo()`
I am using Maya 2019, the “sys.exit” does work, but none of the prints or sys.stdout.write functions.
Can somebody say why?
---
### Author:  [@mechaniac](https://forum.highend3d.com/u/mechaniac)
#### Post date: [March 31, 2019, 12:51pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/2 "2019-03-31T12:51:53Z")
line 9:
print sel
you forgot the brackets.
---
### Author:  [@lala\_ghost](https://forum.highend3d.com/u/lala_ghost)
#### Post date: [March 31, 2019, 2:46pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/3 "2019-03-31T14:46:40Z")
I was testing different methods to print something because apparently nothing gives me output…
I tried without brackets, with brackets, only a string and a string + another object, nothing works…
---
### Author:  [@tomas-herrera](https://forum.highend3d.com/u/tomas-herrera)
#### Post date: [March 31, 2019, 11:20pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/4 "2019-03-31T23:20:47Z")
I dont know why you invoke the sys module, when maya.cmds have error handle.
Is very funny, because your code.. is working to me.
I writed another code more optimized, i hope is helped for you.
`import maya.cmds as cmds
def todo():
sel = cmds.ls(sl=True)
if len(sel) == 0:
cmds.error(“Not enought objects selected.”)
else:
print(‘heloow:%s’ %sel)
todo()`
Oh, i use Maya 2018.4
---
### Author:  [@bart-janssen](https://forum.highend3d.com/u/bart-janssen)
#### Post date: [April 1, 2019, 2:36pm UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/5 "2019-04-01T14:36:33Z")
The exit command invoked stops your program if nothing is selected. So code coming after it is never executed. Could that be the problem?
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### Author:  [@lala\_ghost](https://forum.highend3d.com/u/lala_ghost)
#### Post date: [April 10, 2019, 10:26am UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/7 "2019-04-10T10:26:21Z")
Oh, I did not know that the maya.cmds module has an error handle, thanks! 🙂
After several restarts it works now! ^^
---
### Author:  [@system](https://forum.highend3d.com/u/system)
#### Post date: [June 27, 2019, 12:41am UTC](https://forum.highend3d.com/t/pyhon-script-not-working/159129/8 "2019-06-27T00:41:36Z")
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