print pattern a shape in python

1result_str="";    
2for row in range(0,7):    
3    for column in range(0,7):     
4        if (((column == 1 or column == 5) and row != 0) or ((row == 0 or row == 3) and (column > 1 and column < 5))):    
5            result_str=result_str+"*"    
6        else:      
7            result_str=result_str+" "    
8    result_str=result_str+"\n"    
9print(result_str);
10