python - Unable to execute user defined function using pyper -

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I am trying to read data through a python in my web app and then analyzing it in R . For this I am using the piper analysis function when creating the function, I only get the output if I write a statement in the function definition but if I write more than one statement, I do not get any error nor my Also in running the code I.e. 

  & gt; & Gt; & Gt; From pyper import * r ('& lt; function (stmt) {stmt & lt; ".? @ (*) +' -gsub (," || || || ~}, STMT}} ')  < / Pre> 
 works well but  
 >> <> ('replace & lt; -function (stmt)) {STMT & LT; -Jesub ("@ (. *?) +", "|| || || || || || || || || || || || || || || || || || || || || || || || || || || || || ] * "," || u || ", stmt}} ')   
 does not execute. This is the case with all the other functions, Can not enable the club, please suggest a solution   
 
 
 You might call:  
  R ("" "

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