I often find myself manually changing the title name and forgetting to append ".md" in hugo so I quickly wrote this up so I wouldn't have to remember anymore :)

hugo_post.py

#!/usr/bin/python

import subprocess, string, os, re

# Important variables up here to make it easier to change later on

_BLOG_DIR = "/path/to/blog/here"
_BLOG_DIR_CONTENT =  _BLOG_DIR + "/content/"
_EDITOR = "mate" # I use textmate, but you can change this to whatever you want

# this check is done since you can only create a new post in hugo
# in the blog directory 

if os.getcwd() != _BLOG_DIR:
    print "You must be in %s for this to work" % _BLOG_DIR
else:
    title = raw_input("title> ")
    title = string.capwords(title) # Capitalises Each Word In Your Title
    
    # takes your title and generates a lowercase filename with dashes instead
    # of spaces and appends .md for your editor to easily pick up the file as
    # being in markdown and also removes special characters
    
    filename = re.sub('[^A-Za-z0-9\-\.]+', '', (title.lower().replace(" ", "-") + ".md"))
    
    subprocess.call(["hugo","new", filename])
    file_location = _BLOG_DIR_CONTENT + filename 
    
    # opens the file, changes the title to the pretty one we made earlier
    # then writes it to file before finally opening it up in hugo
    
    old_file = open(file_location,'r').readlines()
    
    for i in range(len(old_file)):
        if "title" in old_file[i]:
            old_file[i] = "title = " + "\"" + title + "\"" + "\n"
            break
            
    blog_entry = open(file_location,'w')
    
    for line in old_file:
        blog_entry.write(line)
                
    blog_entry.close()
    
    subprocess.call([_EDITOR, file_location])