fixed typos found by RETF rules in PY files

rules are avaialble at https://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser/Typos

lib/ansible/inventory/__init__.py

@@ -86,7 +86,7 @@ class Inventory(object):
                 else:
                     if ":" in x:
                         tokens = x.rsplit(":", 1)
-                        # if there is ':' in the address, then this is a ipv6
+                        # if there is ':' in the address, then this is an ipv6
                         if ':' in tokens[0]:
                             all.add_host(Host(x))
                         else:
@@ -215,7 +215,7 @@ class Inventory(object):
 
     def __get_hosts(self, pattern):
         """ 
-        finds hosts that postively match a particular pattern.  Does not
+        finds hosts that positively match a particular pattern.  Does not
         take into account negative matches.
         """
 

lib/ansible/inventory/expand_hosts.py

@@ -28,7 +28,7 @@ formatting hint when the range is expanded. e.g. [001:010] is to be
 expanded into 001, 002 ...009, 010.
 
 Note that when beg is specified with left zero padding, then the length of
-end must be the same as that of beg, else a exception is raised.
+end must be the same as that of beg, else an exception is raised.
 '''
 import string
 
@@ -37,7 +37,7 @@ from ansible import errors
 def detect_range(line = None):
     '''
     A helper function that checks a given host line to see if it contains
-    a range pattern descibed in the docstring above.
+    a range pattern described in the docstring above.
 
     Returnes True if the given line contains a pattern, else False.
     '''
@@ -102,7 +102,7 @@ def expand_hostname_range(line = None):
             if i_beg > i_end:
                 raise errors.AnsibleError("host range format incorrectly specified!")
             seq = string.ascii_letters[i_beg:i_end+1]
-        except ValueError:  # not a alpha range
+        except ValueError:  # not an alpha range
             seq = range(int(beg), int(end)+1, int(step))
 
         for rseq in seq:

lib/ansible/inventory/vars_plugins/group_vars.py

@@ -173,7 +173,7 @@ class VarsModule(object):
 
             scan_pass = scan_pass + 1
 
-            # it's not an eror if the directory does not exist, keep moving
+            # it's not an error if the directory does not exist, keep moving
             if not os.path.exists(basedir):
                 continue