requirements.txt

## pip install -r requirements.txt 
######## example-requirements.txt #######
##
####### Requirements without Version Specifiers ######
#nose
#nose-cov
#beautifulsoup4
##
####### Requirements with Version Specifiers ######
##   See https://www.python.org/dev/peps/pep-0440/#version-specifiers
#docopt == 0.6.1             # Version Matching. Must be version 0.6.1
#keyring >= 4.1.1            # Minimum version 4.1.1
#coverage != 3.5             # Version Exclusion. Anything except version 3.5
#Mopidy-Dirble ~= 1.1        # Compatible release. Same as >= 1.1, == 1.*
##
####### Refer to other requirements files ######
#-r other-requirements.txt
##
##
####### A particular file ######
#./downloads/numpy-1.9.2-cp34-none-win32.whl
#http://wxpython.org/Phoenix/snapshot-builds/wxPython_Phoenix-3.0.3.dev1820+49a8884-cp34-none-win_amd64.whl
##
####### Additional Requirements without Version Specifiers ######
##   Same as 1st section, just here to show that you can put things in any order.
#rejected
#green
##

flask
requests