view STL container using gdb

I am always using the gdb-stl-view to view vector or string values. It is very convenient to view those containers using command like pvec or pstr. But for some reasons, I cannot view set or map or priority_queue using pset and pmap. 

Today, I searched for something to substitute it. I found a very useful webpage. The GDB 7.0 now include support for writing pretty-printers in Python. I followed the instruction and tried it. It works! The good thing is that you do not need to remember any command, just type "p vector_name", "p set_name" in terminal. 

p myvec 

std::vector of length 12, capacity 12 = {1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0}

 p primeset

$15 = std::set with 17 elements = {
  [0] = 11,
  [1] = 17,
  [2] = 19,
  [3] = 23,
  [4] = 29,
  [5] = 31,
  [6] = 37,
  [7] = 41,
  [8] = 43,
  [9] = 47,
  [10] = 53,
  [11] = 59,
  [12] = 61,
  [13] = 67,
  [14] = 71,
  [15] = 73,
  [16] = 79

}
You can also view iterator in the same way. 

I do not know why I can not print an element of a vector(p myvec[2]) in my working place although I installed a gdb with-python. But I found that yolinux had updated the gdb-stl-view utility. I can view set or map using this utility again! I noticed the following comments in it.

#   Modified to work with g++ 4.3 by Anders Elton
#   Also added _member functions, that instead of printing the entire class in map, prints a member.