int( [base]-integer convert string or number to an integerif possible floating point argument will be truncated towards zero (this does not include more text omitted print(map __doc__map(func*iterables--map object make an iterator that computes the function using arguments from each of the iterables stops when the shortest iterable is exhausted you can get wealth of information about built-in tools by inspecting their docstrings this waybut you don' have to--the help functionthe topic of the next sectiondoes this automatically for you pydocthe help function the docstring technique proved to be so useful that python eventually added tool that makes docstrings even easier to display the standard pydoc tool is python code that knows how to extract docstrings and associated structural information and format them into nicely arranged reports of various types additional tools for extracting and formatting docstrings are available in the open source domain (including tools that may support structured text--search the web for pointers)but python ships with pydoc in its standard library there are variety of ways to launch pydocincluding command-line script options that can save the resulting documentation for later viewing (described both ahead and in the python library manualperhaps the two most prominent pydoc interfaces are the built-in help function and the pydoc guiand web-based html report interfaces we met the help function briefly in it invokes pydoc to generate simple textual report for any python object in this modehelp text looks much like "manpageon unix-like systemsand in fact pages the same way as unix "moreoutside guis like idle when there are multiple pages of text--press the space bar to move to the next pageenter to go to the next lineand to quitimport sys help(sys getrefcounthelp on built-in function getrefcount in module sysgetrefcountgetrefcount(object-integer return the reference count of object the count returned is generally one higher than you might expectbecause it includes the (temporaryreference as an argument to getrefcount(note that you do not have to import sys in order to call helpbut you do have to import sys to get help on sys this wayit expects an object reference to be passed in in pythons python documentation sources