getting warning when i run this code

[arungupta87]

pls suggest some steps to get rid of the following warning

`arun@arun-eM250:~$ python /home/arun/lynda.py
/usr/lib/python2.7/dist-packages/bs4/init.py:166: UserWarning: No parser was explicitly specified, so I'm using the best available HTML parser for this system ("lxml"). This usually isn't a problem, but if you run this code on another system, or in a different virtual environment, it may use a different parser and behave differently.

To get rid of this warning, change this:

BeautifulSoup([your markup])

to this:

BeautifulSoup([your markup], "lxml")

markup_type=markup_type))
`