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authorStefan Israelsson Tampe <stefan.itampe@gmail.com>2018-11-06 23:26:25 +0100
committerStefan Israelsson Tampe <stefan.itampe@gmail.com>2018-11-06 23:26:25 +0100
commit4d4de6eecb3917e19a0af616790630a683b43767 (patch)
tree84f4e249a986928dfcba616d32a269900804772c /modules/language/python/module/urllib/#error.py#
parent9f1bcefabfbfb28cd913b363285675d98e9c622c (diff)
python repo install
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+module(urllib,error)
+
+"""Exception classes raised by urllib.
+
+The base exception class is URLError, which inherits from OSError. It
+doesn't define any behavior of its own, but is the base class for all
+exceptions defined in this package.
+
+HTTPError is an exception class that is also a valid HTTP response
+instance. It behaves this way because HTTP protocol errors are valid
+responses, with a status code, headers, and a body. In some contexts,
+an application may want to handle an exception like a regular
+response.
+"""
+
+import urllib.response
+
+__all__ = ['URLError', 'HTTPError', 'ContentTooShortError']
+
+class URLError(OSError):
+ # URLError is a sub-type of OSError, but it doesn't share any of
+ # the implementation. need to override __init__ and __str__.
+ # It sets self.args for compatibility with other EnvironmentError
+ # subclasses, but args doesn't have the typical format with errno in
+ # slot 0 and strerror in slot 1. This may be better than nothing.
+ def __init__(self, reason, filename=None):
+ self.args = reason,
+ self.reason = reason
+ if filename is not None:
+ self.filename = filename
+
+ def __str__(self):
+ return '<urlopen error %s>' % self.reason
+
+
+class HTTPError(URLError, urllib.response.addinfourl):
+ """Raised when HTTP error occurs, but also acts like non-error return"""
+ __super_init = urllib.response.addinfourl.__init__
+
+ def __init__(self, url, code, msg, hdrs, fp):
+ self.code = code
+ self.msg = msg
+ self.hdrs = hdrs
+ self.fp = fp
+ self.filename = url
+ # The addinfourl classes depend on fp being a valid file
+ # object. In some cases, the HTTPError may not have a valid
+ # file object. If this happens, the simplest workaround is to
+ # not initialize the base classes.
+ if fp is not None:
+ self.__super_init(fp, hdrs, url, code)
+
+ def __str__(self):
+ return 'HTTP Error %s: %s' % (self.code, self.msg)
+
+ def __repr__(self):
+ return '<HTTPError %s: %r>' % (self.code, self.msg)
+
+ # since URLError specifies a .reason attribute, HTTPError should also
+ # provide this attribute. See issue13211 for discussion.
+ @property
+ def reason(self):
+ return self.msg
+
+ @property
+ def headers(self):
+ return self.hdrs
+
+ @headers.setter
+ def headers(self, headers):
+ self.hdrs = headers
+
+class ContentTooShortError(URLError):
+ """Exception raised when downloaded size does not match content-length."""
+ def __init__(self, message, content):
+ URLError.__init__(self, message)
+ self.content = content