* The first line of Python script could be executed twice when the source
encoding (not equal to 'utf-8') was specified on the second line.

* Now the source encoding declaration on the second line isn't effective if
the first line contains anything except a comment.

* As a consequence, 'python -x' works now again with files with the source
encoding declarations specified on the second file, and can be used again
to make Python batch files on Windows.

* The tokenize module now ignore the source encoding declaration on the second
line if the first line contains anything except a comment.

* IDLE now ignores the source encoding declaration on the second line if the
first line contains anything except a comment.

* 2to3 and the findnocoding.py script now ignore the source encoding
declaration on the second line if the first line contains anything except
a comment.

now detect Python source code encoding only in comment lines.

I suppose that these scripts didn't work since Python 3.0.

This patch changes a few of the scripts to have __name__=='__main__'
clauses so that they are importable without running.  Also fixes the
syntax errors revealed by the tests.

This patch changes a few of the scripts to have __name__=='__main__'
clauses so that they are importable without running.  Also fixes the
syntax errors revealed by the tests.

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r67028 | benjamin.peterson | 2008-10-25 18:27:07 -0500 (Sat, 25 Oct 2008) | 1 line

  don't use a catch-all
........
  r67040 | armin.rigo | 2008-10-28 12:01:21 -0500 (Tue, 28 Oct 2008) | 5 lines

  Fix one of the tests: it relied on being present in an "output test" in
  order to actually test what it was supposed to test, i.e. that the code
  in the __del__ method did not crash.  Use instead the new helper
  test_support.captured_output().
........
  r67044 | amaury.forgeotdarc | 2008-10-29 18:15:57 -0500 (Wed, 29 Oct 2008) | 3 lines

  Correct error message in io.open():
  closefd=True is the only accepted value with a file name.
........
  r67046 | thomas.heller | 2008-10-30 15:18:13 -0500 (Thu, 30 Oct 2008) | 2 lines

  Fixed a modulefinder crash on certain relative imports.
........
  r67052 | christian.heimes | 2008-10-30 16:26:15 -0500 (Thu, 30 Oct 2008) | 1 line

  Issue #4237: io.FileIO() was raising invalid warnings caused by insufficient initialization of PyFileIOObject struct members.
........
  r67065 | benjamin.peterson | 2008-10-30 18:59:18 -0500 (Thu, 30 Oct 2008) | 1 line

  move unprefixed error into .c file
........
  r67070 | benjamin.peterson | 2008-10-31 15:41:44 -0500 (Fri, 31 Oct 2008) | 1 line

  rephrase has_key doc
........
  r67077 | benjamin.peterson | 2008-11-03 09:14:51 -0600 (Mon, 03 Nov 2008) | 1 line

  #4048 make the parser module accept relative imports as valid
........
  r67082 | hirokazu.yamamoto | 2008-11-03 12:03:06 -0600 (Mon, 03 Nov 2008) | 2 lines

  Issue #3774: Fixed an error when create a Tkinter menu item without command
  and then remove it. Written by Guilherme Polo (gpolo).
........