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how to replace some strings to float value and do calculations?

By
vadivel
on 8/30/16, 2:38 AM 313 views

Hi friends,

I have a char field,which has formula for calculations (char field value is 0.17*(@tw)+0.6*(@tw-500) ).Here i need to replace @tw with some float value and do calculations and need to return float value.How to achieve this.

Thanks in advance.

it shows invalid syntax error on .20*@tw

vadivel
on 8/30/16, 3:07 AM

use it without @

just 0.20*tw

its working

yousif Mobark
on 8/30/16, 10:57 AM
1
yousif Mobark
On 8/30/16, 2:57 AM

hello vadivel

you can do it with "eval" method

def formula( self ):     
    tw=10 #your value
  return eval ('0.17*(tw)+0.6*(tw-500)')

Good Luck


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Asked: 8/30/16, 2:38 AM
Seen: 313 times
Last updated: 8/30/16, 3:08 AM