wrong md5 checksum

[Terry Reedy]

kkwweett wrote:
> 
>>
>>  A. an error in the software that computed the value for the web page,
>>  B. a transcription error in putting the checksum on the web page,
>>  C. accidental corruption of the file, or
>>  D. a deliberate attempt to substitute a file with a similar MD5 sum.
>>
> 
> It seems that the answer is probably B. But, according to the release 
> website manager, a mystery remains :
> 
> http://mail.python.org/pipermail/python-3000/2008-July/014281.html

Marcin Kowalczyk pointed out in a follow-up to the above that the 
replacement of 'a5' with 'b1' could have been part of a global 
search/replace that would have been correct everywhere else on the page. 
  Thus case C.  Barry remembers doing some such.

Lesson.  Take care with blind global replacements.