[Bug 1907494] [NEW] base64 encodestring is deprecated and removed in python 3.9

[Corey Bryant]

Public bug reported:

From: https://docs.python.org/3.8/library/base64.html]


base64.encodebytes(s)

    Encode the bytes-like object s, which can contain arbitrary binary
data, and return bytes containing the base64-encoded data, with newlines
(b'\n') inserted after every 76 bytes of output, and ensuring that there
is a trailing newline, as per RFC 2045 (MIME).

    New in version 3.1.

base64.encodestring(s)

    Deprecated alias of encodebytes().

    Deprecated since version 3.1.

** Affects: manila
     Importance: Undecided
         Status: New

** Affects: manila (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  From: https://docs.python.org/3.8/library/base64.html]
  
- base64.decodebytes(s)
  
-     Decode the bytes-like object s, which must contain one or more lines
- of base64 encoded data, and return the decoded bytes.
+ base64.encodebytes(s)
+ 
+     Encode the bytes-like object s, which can contain arbitrary binary
+ data, and return bytes containing the base64-encoded data, with newlines
+ (b'\n') inserted after every 76 bytes of output, and ensuring that there
+ is a trailing newline, as per RFC 2045 (MIME).
  
      New in version 3.1.
  
- base64.decodestring(s)
+ base64.encodestring(s)
  
-     Deprecated alias of decodebytes().
+     Deprecated alias of encodebytes().
  
      Deprecated since version 3.1.

** Summary changed:

- base64 decodestring is deprecated and removed in python 3.9
+ base64 encodestring is deprecated and removed in python 3.9

** Also affects: manila (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1907494

Title:
  base64 encodestring is deprecated and removed in python 3.9

Status in OpenStack Shared File Systems Service (Manila):
  New
Status in manila package in Ubuntu:
  New

Bug description:
  From: https://docs.python.org/3.8/library/base64.html]

  
  base64.encodebytes(s)

      Encode the bytes-like object s, which can contain arbitrary binary
  data, and return bytes containing the base64-encoded data, with
  newlines (b'\n') inserted after every 76 bytes of output, and ensuring
  that there is a trailing newline, as per RFC 2045 (MIME).

      New in version 3.1.

  base64.encodestring(s)

      Deprecated alias of encodebytes().

      Deprecated since version 3.1.

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