old_contents: #!/usr/bin/env python
  import os
  import os.path as path
  import logging
  import shutil
  import http.server as http_server
  import socketserver
  import importlib
  
  import toml
  import jinja2
  
  
  from ware import Ware
  
  
  REQUIRED_KEYS_IN_CONF = (
      "blog_title",
      "blog_description",
      "blog_theme",
      "plugins",
      "metadata_file",
      "index_file",
      "path_to_generated_content",
      "path_to_articles",
      "path_to_themes",
      "path_to_theme_static",
      "path_to_generated_static",
      "required_keys_in_article",
      "forbidden_keys_in_article",
      "server_port",
      "name_for_injection_callable",
  )
  
  
  # Inits logging.
  logger = logging.getLogger(__name__)
  logger.setLevel(logging.DEBUG)
  ch = logging.StreamHandler()
  ch.setLevel(logging.DEBUG)
  logger.addHandler(ch)
  
  
  # Loads conf from `conf.toml`.
  with open("conf.toml") as conf_file:
      conf = toml.loads(conf_file.read())
  
  for key in REQUIRED_KEYS_IN_CONF:
      if key not in conf:
          logger.error("Conf is missing key `{}`!".format(key))
          exit()
  
  
  # Inits templating.
  path_to_theme = path.join(conf["path_to_themes"], conf["blog_theme"])
  jinja2_loader = jinja2.FileSystemLoader(path_to_theme)
  jinja2_env = jinja2.Environment(loader=jinja2_loader)
  
  
  # Inits plugins.
  middlewares = Ware()
  for plugin_name in conf["plugins"]:
      try:
          plugin = importlib.import_module(plugin_name)
      except ImportError:
          logger.error("Can't load plugin `{}`!".format(plugin_name))
          exit()
  
      if not hasattr(plugin, conf["name_for_injection_callable"]):
          message = ("Plugin `{}` doesn't have `{}` callable!"
                     .format(plugin_name, conf["name_for_injection_callable"]))
          logger.error(message)
          exit()
  
      middlewares = plugin.inject_middlewares(middlewares)
  
  
  context = {
      "is_called_from_cli": __name__ == "__main__",
      "conf": conf,
      "path_to_theme": path_to_theme,
      "jinja2_env": jinja2_env,
  }
  middlewares.run(context)
  
new_contents: #!/usr/bin/env python
  import os.path as path
  import logging
  import importlib
  
  import toml
  import jinja2
  
  
  from ware import Ware
  
  
  REQUIRED_KEYS_IN_CONF = (
      "blog_title",
      "blog_description",
      "blog_theme",
      "plugins",
      "metadata_file",
      "index_file",
      "path_to_generated_content",
      "path_to_articles",
      "path_to_themes",
      "path_to_theme_static",
      "path_to_generated_static",
      "required_keys_in_article",
      "forbidden_keys_in_article",
      "server_port",
      "name_for_injection_callable",
  )
  
  
  # Inits logging.
  logger = logging.getLogger(__name__)
  logger.setLevel(logging.DEBUG)
  ch = logging.StreamHandler()
  ch.setLevel(logging.DEBUG)
  logger.addHandler(ch)
  
  
  # Loads conf from `conf.toml`.
  with open("conf.toml") as conf_file:
      conf = toml.loads(conf_file.read())
  
  for key in REQUIRED_KEYS_IN_CONF:
      if key not in conf:
          logger.error("Conf is missing key `{}`!".format(key))
          exit()
  
  
  # Inits templating.
  path_to_theme = path.join(conf["path_to_themes"], conf["blog_theme"])
  jinja2_loader = jinja2.FileSystemLoader(path_to_theme)
  jinja2_env = jinja2.Environment(loader=jinja2_loader)
  
  
  # Inits plugins.
  middlewares = Ware()
  for plugin_name in conf["plugins"]:
      try:
          plugin = importlib.import_module(plugin_name)
      except ImportError:
          logger.error("Can't load plugin `{}`!".format(plugin_name))
          exit()
  
      if not hasattr(plugin, conf["name_for_injection_callable"]):
          message = ("Plugin `{}` doesn't have `{}` callable!"
                     .format(plugin_name, conf["name_for_injection_callable"]))
          logger.error(message)
          exit()
  
      middlewares = plugin.inject_middlewares(middlewares)
  
  
  context = {
      "is_called_from_cli": __name__ == "__main__",
      "conf": conf,
      "path_to_theme": path_to_theme,
      "jinja2_env": jinja2_env,
  }
  middlewares.run(context)
  
subject: Fix imports