python - 我们如何在 Cheetah 中预编译基本模板，以便 #include、#extends 和 #import 在 Weby 中正常工作

Question

您如何在生产中为Cheetah服务？

伙计们，你能分享一下如何在生产中预编译和服务 cheetah 的设置吗

由于我们不在 webpy 中编译模板，因此出现上游超时错误。如果您可以分享一个好的最佳实践，将会有所帮助

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Jeremy wrote: For a production site, I use Cheetah with pre-compiled templates - it's very fast (the templates import especially quickly when python compiled and optimised). A bit of magic with the imp module takes a template name and a base directory (configured in a site-specific config) and loads up that template, taking care of #extends and

import directives as appropriate. I don't use the built-in support for

Cheetah, however. The new template library is also only imported to display the debugerror page

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Answer 1

也许根据需要自动编译:

import sys
import os
from os import path
import logging
from Cheetah.Template import Template
from Cheetah.Compiler import Compiler

log = logging.getLogger(__name__)

_import_save = __import__
def cheetah_import(name, *args, **kw):
  """Import function which search for Cheetah templates.

  When template ``*.tmpl`` is found in ``sys.path`` matching module
  name (and corresponding generated Python module is outdated or
  not existent) it will be compiled prior to actual import.
  """
  name_parts = name.split('.')
  for p in sys.path:
    basename = path.join(p, *name_parts)
    tmpl_path = basename+'.tmpl'
    py_path = basename+'.py'
    if path.exists(tmpl_path):
      log.debug("%s found in %r", name, tmpl_path)
      if not path.exists(py_path) or newer(tmpl_path, py_path):
        log.info("cheetah compile %r -> %r", tmpl_path, py_path)
        output = Compiler(
            file=tmpl_path,
            moduleName=name,
            mainClassName=name_parts[-1],
            )
        open(py_path, 'wb').write(str(output))
      break
  return _import_save(name, *args, **kw)

def newer(new, old):
    """Whether file with path ``new`` is newer then at ``old``."""
    return os.stat(new).st_mtime > os.stat(old).st_mtime

import __builtin__
__builtin__.__import__ = cheetah_import