Question

我正在关注https://developers.google.com/appengine/docs/python/gettingstartedpython27/introduction

上的教程

我的app.yaml是：

application: myapp
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /
  script: helloworld.application

和helloworld.py是：

import webapp2


class MainPage(webapp2.RequestHandler):

    def get(self):
        self.response.headers['Content-Type'] = 'text/plain'
        self.response.write('Hi')


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

日志输出为：

*** Running dev_appserver with the following flags:
    --skip_sdk_update_check=yes --port=10090 --admin_port=8001
Python command: /usr/bin/python2.7
Traceback (most recent call last):
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 182, in <module>
    _run_file(__file__, globals())
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 178, in _run_file
    execfile(script_path, globals_)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 695, in <module>
    main()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 688, in main
    dev_server.start(options)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 525, in start
    options.yaml_files)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/application_configuration.py", line 556, in __init__
    server_configuration = ServerConfiguration(yaml_path)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/application_configuration.py", line 82, in __init__
    self._yaml_path)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/application_configuration.py", line 272, in _parse_configuration
    return appinfo_includes.ParseAndReturnIncludePaths(f)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/appinfo_includes.py", line 63, in ParseAndReturnIncludePaths
    appyaml = appinfo.LoadSingleAppInfo(appinfo_file)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/appinfo.py", line 1715, in LoadSingleAppInfo
    listener.Parse(app_info)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/yaml_listener.py", line 226, in Parse
    self._HandleEvents(self._GenerateEventParameters(stream, loader_class))
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/yaml_listener.py", line 177, in _HandleEvents
    raise yaml_errors.EventError(e, event_object)
google.appengine.api.yaml_errors.EventError

我在macbook pro上运行，使用python 2.7 我正在使用应用引擎启动器。有什么想法吗？

Answer 1

我也经历过同样的问题。当您直接从站点复制时，它与文件编码有关。避免这样做并确保您的文件具有正确的yaml编码。这是一个让你开始使用app.yaml文件的例子

application: your-app-id
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /.*
  script: helloworld.application

Answer 2

在我的情况下，问题是“脚本”行的缩进级别。

就像：

handlers:
 - url: /.*
 script: helloworld.php

但应该是这样的：

handlers:
 - url: /.*
   script: helloworld.php

Answer 3

我将来自Chrome的app.yaml剪切并粘贴到gnome-terminal，并得到了同样的错误。最后我在vi中打开了app.yaml，发现它包含一个UTF文本方向标记。一旦我删除它，一切都开始工作。

故事的道德：如果您看到此错误，请检查您的app.yaml是否有错误的标记，错误的字符以及其他任何不良内容。（虽然不是DOS换行符 - 开发应用程序服务器应对这些。）

Answer 4

尝试删除app.yaml中应用程序行之前的特殊字符。它似乎不在那里，只是将光标导航到然后按退格键将其删除之前的位置。

Answer 5

要完成@Fernando Basso的回答，脚本行上的正确意图应该是两个空格，而不是一个标签，因为它将被读作一个也会产生错误的\ t字符。

谷歌应用程序引擎python 2.7教程将无法运行

5 个答案: