"urllib.error" --- Exception classes raised by urllib.request
*************************************************************

**Source code:** Lib/urllib/error.py

======================================================================

The "urllib.error" module defines the exception classes for exceptions
raised by "urllib.request".  The base exception class is "URLError".

The following exceptions are raised by "urllib.error" as appropriate:

exception urllib.error.URLError

   The handlers raise this exception (or derived exceptions) when they
   run into a problem.  It is a subclass of "OSError".

   reason

      The reason for this error.  It can be a message string or
      another exception instance.

   Zmienione w wersji 3.3: "URLError" used to be a subtype of
   "IOError", which is now an alias of "OSError".

exception urllib.error.HTTPError

   Though being an exception (a subclass of "URLError"), an
   "HTTPError" can also function as a non-exceptional file-like return
   value (the same thing that "urlopen()" returns).  This is useful
   when handling exotic HTTP errors, such as requests for
   authentication.

   code

      An HTTP status code as defined in **RFC 2616**.  This numeric
      value corresponds to a value found in the dictionary of codes as
      found in "http.server.BaseHTTPRequestHandler.responses".

   reason

      This is usually a string explaining the reason for this error.

   headers

      The HTTP response headers for the HTTP request that caused the
      "HTTPError".

      Nowe w wersji 3.4.

exception urllib.error.ContentTooShortError(msg, content)

   This exception is raised when the "urlretrieve()" function detects
   that the amount of the downloaded data is less than the expected
   amount (given by the *Content-Length* header).

   content

      The downloaded (and supposedly truncated) data.
