This allows system libs to be weak-linked, thereby allowing us to generate functions that are only available on some OS versions without getting a NULL dereference if the function isn't available.
I published it on the web as http://www.python.org/2.1/md5sum.py
so I thought I might as well check it in.
Works with Python 1.5.2 and later.
Works like the Linux tool ``mdfsum file ...'' except it doesn't take
any options or read stdin.
Armin Rigo pointed out that the way the line-# table got built didn't work
for lines generating more than 255 bytes of bytecode. Fixed as he
suggested, plus corresponding changes to pyassem.py, plus added some
long overdue docs about this subtle table to compile.c.
Bugfix candidate (line numbers may be off in tracebacks under -O).
indicating whether the entry was extracted from a docstring or not.
write(): If any of the locations of a string appearance came from a
docstring, add a comment such as
#. docstring
before the references (after a suggestion by Martin von Loewis).
codec files to codecs.py and added logic so that multi mappings
in the decoding maps now result in mappings to None (undefined mapping)
in the encoding maps.
rather than the idle.py script. This has advantages and
disadvantages; the biggest advantage being that we can more easily
have an alternative main program.
Assertion error message had typos in arguments to string format.
.cover files for modules in packages are now put in the right place.
The code that generate .cover files seemed to prepend a "./" to many
absolute paths, causing them to fail. The code now checks explicitly
for absolute paths and leaves them alone.
In trace/coverage code, recover from case where module has no __name__
attribute, when e.g. it is executed by PyRun_String(). In this case,
assign modulename to None and hope for the best. There isn't anywhere
to write out coverage data for this code anyway.
Also, replace several sys.stderr.writes with print >> sys.stderr.
New features:
-C/--coverdir dir: Generate .cover files in specified directory
instead of in the directory where the .py file is.
-s: Print a short summary of files coverred (# lines, % coverage,
name)
