Reordered and slightly edited the highlights of changes.

gvanrossum · gvanrossum · commit 66d010ab3cf3 · 1997-11-26T17:37:31.000Z
diff --git a/README b/README
@@ -4,51 +4,25 @@ This is Python release 1.5 beta 1
 What's new in this release?
 ---------------------------
 
-Too much has changed to list it all here.  There's a loooong list of
-changes since release 1.4 in the file Misc/NEWS.  If you were an alpha
-tester, the list of changes since 1.5a4 is presented at the end of
-that file.
-
-Most relevant changes since 1.5a4 (of course all known bugs have been
-fixed, leaks plugged, and documentation has been added):
-
-  - Package directories now *require* the presence of __init__.py.
-  Packages can now contain shared libraries.
-
-  - New module 'fileinput' to iterate over the lines of a list of files.
-
-  - New module 'locale' for localized number formatting and string case
-  sensitivity.
-
-  - New module 'xmllib' to parse XML files.
-
-  - Some more support for Tk extensions (PIL, TIX, BLT, TOGL).
-
-  - Fixed address list parsing in module 'rfc822'.
-
-  - More deployment (and only one fix) for the 're' module.
-
-  - New Python mode for Emacs.
-
-  - OS/2 support.
-
-Other important changes, if this is the first release you see since
-1.4:
+There's a loooong list of changes since release 1.4 in the file
+Misc/NEWS.  Some highlights:
 
   - It's much faster (almost twice for the Lib/test/pystone.py
   benchmark.)
 
-  - There's an assert statement: assert <condition> or
-  assert <condition>, <errormessage>.  It raises AssertionError if the
-  condition evaluates to false.
+  - There is now an assert statement: ``assert <condition>'' or
+  ``assert <condition>, <errormessage>''.  It raises AssertionError if
+  the condition evaluates to false.  The default error message is
+  empty; the source text of the assertion statement is printed as part
+  of the traceback.
 
   - There is now built-in support for importing hierarchical module
   names (e.g. "import spam.ham.eggs"); ni is declared obsolete.  Note
   that the built-in package support is somewhat simpler (no __ and
-  __domain__) and differs in one crucial aspect: __init__.py is loaded
-  in the package's namespace instead of as a submodule.  See
-    http://grail.cnri.reston.va.us/python/essays/packages.html
-  for more info.
+  __domain__) and differs in one crucial aspect: __init__.py is
+  required, and loaded in the package's namespace instead of as a
+  submodule.  For more information, see
+  http://grail.cnri.reston.va.us/python/essays/packages.html.
 
   - The new "re" module (Perl style regular expressions) is here.  It
   is based on Philip Hazel's pcre code; the Python interfaces were put
@@ -63,26 +37,32 @@ Other important changes, if this is the first release you see since
     http://grail.cnri.reston.va.us/python/essays/stdexceptions.html
   for more info.
 
-  - Comparisons can now raise exceptions.
+  - Comparisons can now raise exceptions (previously, exceptions
+  occuring during comparisons were swept under the rug).
 
-  - New dictionary methods: .clear(), .update(), .copy(), .get().
+  - New dictionary methods: .clear(), .copy(), .update(), .get().  The
+  first two are obvious; d1.update(d2) is equivalent to the for loop
+  ``for k in d2.keys(): d1[k] = d2[k]''; and d.get(k) returns d[k] if
+  it exists and None (or the optional second argument) if not.
 
-  - New regression test harness tests more.
+  - There is a new regression test harness, which tests many more
+  modules.  (To run the tests, do "import tes.autotest".)
 
-  - It's much smarter about the initial value for sys.path; you can
-  control it easier using $PYTHONHOME (see the usage message, e.g. try
-  ``python -h'').  In most situations, the interpreter can be
-  installed at an arbitrary location without having to recompile.
+  - The interpreter is much smarter about the initial value for
+  sys.path; you can control it easier using $PYTHONHOME (see the usage
+  message, e.g. try ``python -h'').  In most situations, the
+  interpreter can be installed at an arbitrary location without having
+  to recompile.
 
   - The build process now builds a single library (libpython1.5.a)
   which contains everything except for the main() entry point.  This
   makes life much easier for applications that embed Python.
 
-  - Much better support for embedding, including threads, multiple
-  interpreters(!), uninitialization, and access to the global
+  - There is much better support for embedding, including threads,
+  multiple interpreters(!), uninitialization, and access to the global
   interpreter lock.
 
-  - There's a -O option that removes SET_LINENO instructions, assert
+  - There is a -O option that removes SET_LINENO instructions, assert
   statements and code prefixed with ``if __debug__: ...''.  (It still
   only makes a few percent difference, so don't get all worked up
   about this.)
@@ -91,6 +71,32 @@ Other important changes, if this is the first release you see since
   defined by Python now have a "Py" or "_Py" prefix, and the same is
   true for most macros and typedefs.
 
+If you were an alpha tester, here are the most relevant changes since
+1.5a4 (of course all known bugs have been fixed, leaks plugged, and
+some documentation has been added).  The full list of changes since
+1.5a4 is presented at the end of the Misc/NEWS file.
+
+  - Package directories now *require* the presence of __init__.py (or
+  .pyc/.pyo as applicable).  Packages can now contain shared
+  library modules.
+
+  - New module 'fileinput' to iterate over the lines of a list of files.
+
+  - New module 'locale' for localized number formatting and string case
+  sensitivity.
+
+  - New module 'xmllib' to parse XML files.
+
+  - Some more support for Tk extensions (PIL, TIX, BLT, TOGL).
+
+  - Fixed address list parsing in module 'rfc822'.
+
+  - More deployment (and only one fix) for the 're' module.
+
+  - New Python mode for Emacs.
+
+  - OS/2 support.
+
 
 If you don't read instructions
 ------------------------------
