Python 我能'；t创建一个谷歌云存储文件，用于；dev_appserver.py。”；

我发现一个错误如下

INFO     ~ module.py:639] default: "HEAD /_ah/gcs/app_default_bucket/multibytes.txt HTTP/1.1" 404 -
ERROR    ~ gcs.py:99] Expect status [200] from Google Storage. But got status 404.
Path: '/app_default_bucket/multibytes.txt'.
Request headers: None.
Response headers: {'date': 'Mon, 07 Jul 2014 12:59:44 GMT', 'server': 'Development/2.0', 'connection': 'close'}.
Body: ''.
Extra info: None.
Traceback (most recent call last):
  File "/gcs.py", line 97, in status
        stat = gcs.stat("/%s/%s" % (b,nm))
  File "/cloudstorage/cloudstorage_api.py", line 142, in stat
        body=content)
  File "/cloudstorage/errors.py", line 132, in check_status
        raise NotFoundError(msg)
NotFoundError: Expect status [200] from Google Storage. But got status 404.
Path: '/app_default_bucket/multibytes.txt'.
Request headers: None.
Response headers: {'date': 'Mon, 07 Jul 2014 12:59:44 GMT', 'server': 'Development/2.0', 'connection': 'close'}.
Body: ''.
Extra info: None.

例如，这是我的自定义GCS客户端类

# encoding: utf-8

import cloudstorage as gcs

class mycustomgcsclient:

  #...

  def create(self,name,data,**options):
    options['retry_params'] = gcs.RetryParams(backoff_factor=1.1)

    if not options.get('content_type'):
      options['content_type'] = 'octet-stream'

    if isintance(name,unicode):
      name = name.encode('utf-8')

    path = '/mybucketname/%s' % name
    try:
      with gcs.open(path,'w',**options) as f:
        f.write(data)
      return True
    except Exception as e:
      logging.exception(e)

    return False

if __name__=='__main__':
  data = 'some data ...¥n'

  filename = 'somedir/%s' % u'sample.txt'
  mycustomgcsclient().create(filename,data) # no error occured.

  filename = 'somedir/%s' % u'あいうえお.txt'
  mycustomgcsclient().create(filename,data) # error occured in this line.

我发现上面只使用多字节文件名时出现了一个错误

使用ascii文件名时，我没有发现任何错误

我使用的是on提供的“GCS客户端库（Python）”

我的dev_appserver.py版本是Development SDK 1.9.6， 这是在MacOS X Marve上工作的（？遗忘）

---

有一些解决方案吗？

我想您可能需要在将名称编码为utf8后调用

urllib.quote（）

下面是GCS Python demo（）的一个修改版本，它可以使用多字节文件名正常工作：

# Copyright 2012 Google Inc. All Rights Reserved.
# encoding: utf-8

"""A modified version of the sample app that uses GCS client to operate on
   bucket and file.
"""

import logging
import os
import cloudstorage as gcs
import webapp2
import urllib

from google.appengine.api import app_identity

my_default_retry_params = gcs.RetryParams(initial_delay=0.2,
                                          max_delay=5.0,
                                          backoff_factor=2,
                                          max_retry_period=15)
gcs.set_default_retry_params(my_default_retry_params)


class MainPage(webapp2.RequestHandler):
  """Main page for GCS demo application."""

  def get(self):
    bucket_name = os.environ.get('BUCKET_NAME',
                                 app_identity.get_default_gcs_bucket_name())

    self.response.headers['Content-Type'] = 'text/plain'
    self.response.write('Demo GCS Application running from Version: '
                        + os.environ['CURRENT_VERSION_ID'] + '\n')
    self.response.write('Using bucket name: ' + bucket_name + '\n\n')

    bucket = '/' + bucket_name
    filename = bucket + '/' + urllib.quote(u'あいうえお.txt'.encode('utf8'))
    self.tmp_filenames_to_clean_up = []

    try:
      self.create_file(filename)
      self.response.write('\n\n')

      self.read_file(filename)
      self.response.write('\n\n')

    except Exception, e:
      logging.exception(e)
      self.delete_files()
      self.response.write('\n\nThere was an error running the demo! '
                          'Please check the logs for more details.\n')

    else:
      self.delete_files()
      self.response.write('\n\nThe demo ran successfully!\n')

  def create_file(self, filename):
    """Create a file.

    The retry_params specified in the open call will override the default
    retry params for this particular file handle.

    Args:
      filename: filename.
    """
    self.response.write('Creating file %s\n' %
                        urllib.unquote(filename).decode('utf-8'))

    write_retry_params = gcs.RetryParams(backoff_factor=1.1)
    gcs_file = gcs.open(filename,
                        'w',
                        content_type='text/plain',
                        options={'x-goog-meta-foo': 'foo',
                                 'x-goog-meta-bar': 'bar'},
                        retry_params=write_retry_params)
    gcs_file.write('some data ...¥n\n')
    gcs_file.close()
    self.tmp_filenames_to_clean_up.append(filename)


  def read_file(self, filename):
    self.response.write('File Content:\n')

    gcs_file = gcs.open(filename)
    self.response.write(gcs_file.readline())
    gcs_file.close()

  def delete_files(self):
    self.response.write('Deleting files...\n')
    for filename in self.tmp_filenames_to_clean_up:
      self.response.write('Deleting file %s\n' %
                          urllib.unquote(filename).decode('utf-8'))
      try:
        gcs.delete(filename)
      except gcs.NotFoundError:
        pass

app = webapp2.WSGIApplication([('/', MainPage)],
                              debug=True)

---

您好，您能提供一个示例代码来说明这个问题吗？同时，似乎在第一时间无法找到多字节文件。你能确认在你创建它之后，这个文件确实在那里吗？在dev_appserver上，您应该能够在blobstore查看器中看到它：在应用程序引擎本身上，您可以在云存储的存储浏览器中看到它们：谢谢大家。我添加了源代码。我无法验证存储的数据，因为存储事务尚未完成。GAE或GCS库在内部运行的“/\u ah/~”请求中出错。