Merge pull request gleitz#91 from hrishikeshsathe/master

Added version as command line parameter

README.rst

@@ -86,7 +86,7 @@ Usage
 
 ::
 
-    usage: howdoi.py [-h] [-p POS] [-a] [-l] [-c] [-n NUM_ANSWERS] QUERY [QUERY ...]
+    usage: howdoi.py [-h] [-p POS] [-a] [-l] [-c] [-n NUM_ANSWERS] [-C] [-v] QUERY [QUERY ...]
 
     instant coding answers via the command line
 
@@ -102,6 +102,8 @@ Usage
       -n NUM_ANSWERS, --num-answers NUM_ANSWERS
                             number of answers to return
       -C, --clear-cache     clear the cache
+      -v, --version         displays the current version of howdoi
+
 
 Author
 ------
@@ -138,3 +140,11 @@ Fix the error by executing the following command:
 ::
 
     sudo chmod -R go+w /Library/Python/2.7/site-packages/
+    
+   
+An official lxml for python 3.3+ for windows has not yet been released. You may get an error while installing. 
+Try and install an unofficial binary for lxml from 
+
+::
+
+    http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

howdoi/howdoi.py

@@ -16,6 +16,7 @@
 import requests
 import requests_cache
 import sys
+from . import __version__
 
 try:
     from urllib.parse import quote as url_quote
@@ -229,12 +230,18 @@ def get_parser():
     parser.add_argument('-n','--num-answers', help='number of answers to return', default=1, type=int)
     parser.add_argument('-C','--clear-cache', help='clear the cache',
                         action='store_true')
+    parser.add_argument('-v','--version', help='displays the current version of howdoi',
+                        action='store_true')
     return parser
 
 
 def command_line_runner():
     parser = get_parser()
     args = vars(parser.parse_args())
+
+    if args['version']:
+        print(__version__)
+        return
 
     if args['clear_cache']:
         clear_cache()