Create a blog post for Pelican, which is a static blog system. Note other than Mac, comment out the line 78.

.bashrc

alias post='create_post.py --basedir="/path/to/pelican/" -a "Author name"'

create_post.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
This creates blog post file for Pelican at the directory in the year
and month of the current date as ``content/yyyy/mm/dd_slug.rst`` .
This should be run at the directory that includes ``content`` directory.

Usage:
  create_post.py [options] TITLE

Options:
  -h, --help  Show this help message and exit.
  -a, --author=AUTHOR
              Specifies author. [default: None]
  -s, --slug=SLUG
              Specifies slug string. [default: None]
  --basedir=BASEDIR
              Specifies base directory where the Pelican blog system is. [default: None]
'''

import os,sys
from docopt import docopt
from datetime import datetime as dt

_content= 'content'

if __name__ == '__main__':

    args= docopt(__doc__)
    basedir= os.path.expanduser(args['--basedir'])

    cwd= os.getcwd()
    os.chdir(basedir)

    if not os.path.exists(_content):
        print 'Error: {0:s} does not exist.\n'.format(_content)
        print __doc__
        os.chdir(cwd)
        sys.exit()

    if not os.path.isdir(_content):
        print 'Error: {0:s} is not a directory.\n'.format(_content)
        print __doc__
        os.chdir(cwd)
        sys.exit()

    author= args['--author']
    slug= args['--slug']
    title= args['TITLE']
    if slug == 'None':
        slug= title.lower().replace(' ','-')

    now= dt.now()
    date= now.strftime('%Y-%m-%d %H:%M:%S')
    year= now.strftime('%Y')
    month= now.strftime('%m')
    day= now.strftime('%d')
    
    header_template='''
:title: {0:s}
:date: {1:s}
:category: misc
:slug: {2:s}
:authors: {3:s}
:tags:
'''.format(title,date,slug,author)

    dname= _content+'/{0:s}/{1:s}'.format(year,month)
    os.system('mkdir -p '+dname)
    
    fname= basedir+dname+'/{0:s}_{1:s}.rst'.format(day,slug)
    with open(fname,'w') as f:
        f.write(header_template+'\n')
        f.write('\n')
        f.write('Write a content here!\n\n')

    print fname+' is written.'
    os.system('open '+fname)  # Only for Mac
    #os.chdir(cwd)

Putting the above script somewhere PATH environment sees, just run this script as

$ post "new post title"

The script creates a file and open it with some editor. After editing the post, you can update your blog with make html.

This one is out of date. I uploaded revised one as myblog.py today.