gh-97669: Move difflib examples to Doc/includes/ (#97964)

Remove diff.py and ndiff.py scripts of Tools/scripts/: move them to
Doc/includes/.

* diff.py and ndiff.py files are no longer executable. Remove also
  their shebang ("#!/usr/bin/env python3").
* Remove the -profile command from ndiff.py to simply the code.
* Remove ndiff.py copyright and history command. The Python
  documentation examples are distributed under the "Zero Clause BSD
  License".

1 files changed, 0 insertions, 133 deletions

diff --git a/Tools/scripts/ndiff.py b/Tools/scripts/ndiff.py
deleted file mode 100755
index c6d09b8..0000000
--- a/Tools/scripts/ndiff.py
+++ /dev/null
@@ -1,133 +0,0 @@
-#! /usr/bin/env python3
-
-# Module ndiff version 1.7.0
-# Released to the public domain 08-Dec-2000,
-# by Tim Peters (tim.one@home.com).
-
-# Provided as-is; use at your own risk; no warranty; no promises; enjoy!
-
-# ndiff.py is now simply a front-end to the difflib.ndiff() function.
-# Originally, it contained the difflib.SequenceMatcher class as well.
-# This completes the raiding of reusable code from this formerly
-# self-contained script.
-
-"""ndiff [-q] file1 file2
-    or
-ndiff (-r1 | -r2) < ndiff_output > file1_or_file2
-
-Print a human-friendly file difference report to stdout.  Both inter-
-and intra-line differences are noted.  In the second form, recreate file1
-(-r1) or file2 (-r2) on stdout, from an ndiff report on stdin.
-
-In the first form, if -q ("quiet") is not specified, the first two lines
-of output are
-
--: file1
-+: file2
-
-Each remaining line begins with a two-letter code:
-
-    "- "    line unique to file1
-    "+ "    line unique to file2
-    "  "    line common to both files
-    "? "    line not present in either input file
-
-Lines beginning with "? " attempt to guide the eye to intraline
-differences, and were not present in either input file.  These lines can be
-confusing if the source files contain tab characters.
-
-The first file can be recovered by retaining only lines that begin with
-"  " or "- ", and deleting those 2-character prefixes; use ndiff with -r1.
-
-The second file can be recovered similarly, but by retaining only "  " and
-"+ " lines; use ndiff with -r2; or, on Unix, the second file can be
-recovered by piping the output through
-
-    sed -n '/^[+ ] /s/^..//p'
-"""
-
-__version__ = 1, 7, 0
-
-import difflib, sys
-
-def fail(msg):
-    out = sys.stderr.write
-    out(msg + "\n\n")
-    out(__doc__)
-    return 0
-
-# open a file & return the file object; gripe and return 0 if it
-# couldn't be opened
-def fopen(fname):
-    try:
-        return open(fname)
-    except IOError as detail:
-        return fail("couldn't open " + fname + ": " + str(detail))
-
-# open two files & spray the diff to stdout; return false iff a problem
-def fcompare(f1name, f2name):
-    f1 = fopen(f1name)
-    f2 = fopen(f2name)
-    if not f1 or not f2:
-        return 0
-
-    a = f1.readlines(); f1.close()
-    b = f2.readlines(); f2.close()
-    for line in difflib.ndiff(a, b):
-        print(line, end=' ')
-
-    return 1
-
-# crack args (sys.argv[1:] is normal) & compare;
-# return false iff a problem
-
-def main(args):
-    import getopt
-    try:
-        opts, args = getopt.getopt(args, "qr:")
-    except getopt.error as detail:
-        return fail(str(detail))
-    noisy = 1
-    qseen = rseen = 0
-    for opt, val in opts:
-        if opt == "-q":
-            qseen = 1
-            noisy = 0
-        elif opt == "-r":
-            rseen = 1
-            whichfile = val
-    if qseen and rseen:
-        return fail("can't specify both -q and -r")
-    if rseen:
-        if args:
-            return fail("no args allowed with -r option")
-        if whichfile in ("1", "2"):
-            restore(whichfile)
-            return 1
-        return fail("-r value must be 1 or 2")
-    if len(args) != 2:
-        return fail("need 2 filename args")
-    f1name, f2name = args
-    if noisy:
-        print('-:', f1name)
-        print('+:', f2name)
-    return fcompare(f1name, f2name)
-
-# read ndiff output from stdin, and print file1 (which=='1') or
-# file2 (which=='2') to stdout
-
-def restore(which):
-    restored = difflib.restore(sys.stdin.readlines(), which)
-    sys.stdout.writelines(restored)
-
-if __name__ == '__main__':
-    args = sys.argv[1:]
-    if "-profile" in args:
-        import profile, pstats
-        args.remove("-profile")
-        statf = "ndiff.pro"
-        profile.run("main(args)", statf)
-        stats = pstats.Stats(statf)
-        stats.strip_dirs().sort_stats('time').print_stats()
-    else:
-        main(args)