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−#!/usr/bin/env python
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−#
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−# Copyright 2007 Google Inc.
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−#
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−# Licensed under the Apache License, Version 2.0 (the "License");
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−# you may not use this file except in compliance with the License.
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−# You may obtain a copy of the License at
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−#
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−#     http://www.apache.org/licenses/LICENSE-2.0
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−#
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−# Unless required by applicable law or agreed to in writing, software
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−# distributed under the License is distributed on an "AS IS" BASIS,
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−# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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−# See the License for the specific language governing permissions and
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−# limitations under the License.
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−#
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−"""Errors used in the urlfetch API
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−developers.
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−"""
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−
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−
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−
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−
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−
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−
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−class Error(Exception):
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−  """Base URL fetcher error type."""
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−
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−
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−class InvalidURLError(Error):
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−  """Raised when the URL given is empty or invalid.
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−
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−  Only http: and https: URLs are allowed. The maximum URL length
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−  allowed is 2048 characters. The login/pass portion is not
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−  allowed. In deployed applications, only ports 80 and 443 for http
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−  and https respectively are allowed.
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−  """
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−
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−
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−class DownloadError(Error):
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−  """Raised when the we could not fetch the URL for any reason.
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−
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−  Note that this exception is only raised when we could not contact the
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−  server. HTTP errors (e.g., 404) are returned in as the status_code field
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−  in the return value of Fetch, and no exception is raised.
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−  """
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−
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−
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−class ResponseTooLargeError(Error):
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−  """Raised when the response was too large and was truncated."""
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−  def __init__(self, response):
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−    self.response = response
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−
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−
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−class InvalidMethodError(Error):
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−  """Raised when an invalid value for 'method' is provided"""
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−
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−
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−class InvalidMethodError(Error):
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−  """Raised when an invalid value for 'method' is provided"""