[GitHub] upgle commented on issue #4215: only nodejs runtime can reuse global scope variable

[GitBox <gi...@apache.org>]

upgle commented on issue #4215: only nodejs runtime can reuse global scope variable
URL: https://github.com/apache/incubator-openwhisk/issues/4215#issuecomment-454056800
 
 
   oh, I forgot checking that global variable is set. python runtime supports global variable as you said.
   
   ```python
   if 'g' not in globals(): # should be checked that variable is set in globals
       g = 0
   def main(args):
       try:
           global g
           g = g + 1
           return {"count": g}
       except Exception as e:
           # please handle exception here
           # you can return or hide an error message
           return {"error": str(e)}
   ```

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