old_contents: """
  Dash.py
  
  Usage:
      dash.py install <name>...
      dash.py --version
  
  Options:
      -h --help             Show this screen and exit.
  """
  
  import os
  import yaml
  import requests
  
  PACKAGES_PATH = os.path.join(
      os.path.abspath(os.path.dirname(__file__)),
      "packages"
  )
  
  import dash_py
  from parguments import Parguments
  from .installer import install_package
  from .utils import enable_pretty_logging, logger
  
  parguments = Parguments(__doc__, version=dash_py.__version__)
  
  
  @parguments.command
  def install(name):
      """
      Usage:
          dash.py install <name>...
  
      Options:
          -h --help             Show this screen and exit.
      """
      if isinstance(name, list):
          return [install(n) for n in name]
  
      name = name.lower()
      url = "https://raw.github.com/whtsky/Dash.py/" \
            "master/dash_py/packages/%s.yaml" % name
      r = requests.head(url)
      if r.status_code == 200:
          r = requests.get(url)
          package = yaml.load(r.content)
          install_package(package)
          return
  
      # Try to download document from rtfd
      r = requests.get("https://readthedocs.org/projects/%s/downloads/" % name)
      if r.status_code != 200:
          logger.error("Can't find package %s" % name)
          return
  
      from pyquery import PyQuery
      name = PyQuery(r.content)("title").html().split("|")[0].strip()
  
      for branch in ['stable', 'master', 'latest']:
          if branch not in r.content:
              continue
          url = "https://media.readthedocs.org/dash/" \
                "{0}/{1}/{2}.tgz".format(name.lower(), branch, name)
          if requests.head(url).status_code == 200:
              install_package({
                  "name": name,
                  "type": "docset",
                  "url": url
              })
              return
      logger.error("Can't find package %s" % name)
      return
  
  
  def main():
      enable_pretty_logging()
      parguments.run()
  
new_contents: """
  Dash.py
  
  Usage:
      dash.py install <name>...
      dash.py --version
  
  Options:
      -h --help             Show this screen and exit.
  """
  
  import os
  import yaml
  import requests
  
  PACKAGES_PATH = os.path.join(
      os.path.abspath(os.path.dirname(__file__)),
      "packages"
  )
  
  import dash_py
  from parguments import Parguments
  from .installer import install_package
  from .utils import enable_pretty_logging, logger
  
  parguments = Parguments(__doc__, version=dash_py.__version__)
  
  
  @parguments.command
  def install(name):
      """
      Usage:
          dash.py install <name>...
  
      Options:
          -h --help             Show this screen and exit.
      """
      if isinstance(name, list):
          return [install(n) for n in name]
  
      content = ""
      name = name.lower()
      if os.path.exists(name):
          content = open(name, "r").read()
      else:
          if '//' in name:
              url = name
          else:
              url = "https://raw.github.com/whtsky/Dash.py/" \
                    "master/dash_py/packages/%s.yaml" % name
          r = requests.head(url)
          if r.status_code == 200:
              r = requests.get(url)
              content = r.content
  
      if content:
          package = yaml.load(content)
          install_package(package)
          return
  
      # Try to download document from rtfd
      r = requests.get("https://readthedocs.org/projects/%s/downloads/" % name)
      if r.status_code != 200:
          logger.error("Can't find package %s" % name)
          return
  
      from pyquery import PyQuery
      name = PyQuery(r.content)("title").html().split("|")[0].strip()
  
      for branch in ['stable', 'master', 'latest']:
          if branch not in r.content:
              continue
          url = "https://media.readthedocs.org/dash/" \
                "{0}/{1}/{2}.tgz".format(name.lower(), branch, name)
          if requests.head(url).status_code == 200:
              install_package({
                  "name": name,
                  "type": "docset",
                  "url": url
              })
              return
      logger.error("Can't find package %s" % name)
      return
  
  
  def main():
      enable_pretty_logging()
      parguments.run()
  
subject: support install local package