program..

User input star pattern programming in python.. 

num1=int(input ())

for i in range (1, num1) :

   for j in range (1, num1) :

      if(j<=i) :

          print("*", end='  ') 

      else :

          print ("  ", end='   ') 

          print () 

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Expected output

Let that user input 5 so print as... 

*

**

***

****