Be extra careful with linking against libtermcap. This is now only done
if we can find the libtermcap in the usual places. Some platforms don't
have libtermcap, e.g. MacOSX.
Neil Schemenauer [Fri, 26 Jan 2001 16:18:16 +0000 (16:18 +0000)]
- LIBRARY is now a SUBST variable.
- Add CFLAGSFORSHARED variable. configure sets this to CCSHARED if LDLIBRARY
is a shared library.
- Remove -fPIC from OPT, it has no business there.
- Change CCSHARED option for Linux to -fPIC. It should probably be
-fPIC on a few other platforms as well.
- Don't create silly boot Makefile, create Setup files and run makesetup
instead.
Neil Schemenauer [Fri, 26 Jan 2001 16:14:41 +0000 (16:14 +0000)]
- Add CFLAGSFORSHARED variable. configure sets this to CCSHARED if LDLIBRARY
is a shared library.
- Add PY_CFLAGS variable (flags used to compile the interpreter)
- clobber now just removes object files, libraries and binaries
Jeremy Hylton [Thu, 25 Jan 2001 20:10:32 +0000 (20:10 +0000)]
In subst_vars(), change the name of the argument from str to s to
prevent binding for str from masking use of builtin str in nested
function.
(This is the only case I found in the standard library where a local
shadows a global or builtin. There may be others, but the regression
test doesn't catch them.)
Jeremy Hylton [Thu, 25 Jan 2001 20:06:59 +0000 (20:06 +0000)]
PEP 227 implementation
The majority of the changes are in the compiler. The mainloop changes
primarily to implement the new opcodes and to pass a function's
closure to eval_code2(). Frames and functions got new slots to hold
the closure.
Include/compile.h
Add co_freevars and co_cellvars slots to code objects.
Update PyCode_New() to take freevars and cellvars as arguments
Include/funcobject.h
Add func_closure slot to function objects.
Add GetClosure()/SetClosure() functions (and corresponding
macros) for getting at the closure.
Include/frameobject.h
PyFrame_New() now takes a closure.
Include/opcode.h
Add four new opcodes: MAKE_CLOSURE, LOAD_CLOSURE, LOAD_DEREF,
STORE_DEREF.
Remove comment about old requirement for opcodes to fit in 7
bits.
compile.c
Implement changes to code objects for co_freevars and co_cellvars.
Modify symbol table to use st_cur_name (string object for the name
of the current scope) and st_cur_children (list of nested blocks).
Also define st_nested, which might more properly be called
st_cur_nested. Add several DEF_XXX flags to track def-use
information for free variables.
New or modified functions of note:
com_make_closure(struct compiling *, PyCodeObject *)
Emit LOAD_CLOSURE opcodes as needed to pass cells for free
variables into nested scope.
com_addop_varname(struct compiling *, int, char *)
Emits opcodes for LOAD_DEREF and STORE_DEREF.
get_ref_type(struct compiling *, char *name)
Return NAME_CLOSURE if ref type is FREE or CELL
symtable_load_symbols(struct compiling *)
Decides what variables are cell or free based on def-use info.
Can now raise SyntaxError if nested scopes are mixed with
exec or from blah import *.
make_scope_info(PyObject *, PyObject *, int, int)
Helper functions for symtable scope stack.
symtable_update_free_vars(struct symtable *)
After a code block has been analyzed, it must check each of
its children for free variables that are not defined in the
block. If a variable is free in a child and not defined in
the parent, then it is defined by block the enclosing the
current one or it is a global. This does the right logic.
symtable_add_use() is now a macro for symtable_add_def()
symtable_assign(struct symtable *, node *)
Use goto instead of for (;;)
Fixed bug in symtable where name of keyword argument in function
call was treated as assignment in the scope of the call site. Ex:
def f():
g(a=2) # a was considered a local of f
ceval.c
eval_code2() now take one more argument, a closure.
Implement LOAD_CLOSURE, LOAD_DEREF, STORE_DEREF, MAKE_CLOSURE>
Also: When name error occurs for global variable, report that the
name was global in the error mesage.
Objects/frameobject.c
Initialize f_closure to be a tuple containing space for cellvars
and freevars. f_closure is NULL if neither are present.
Objects/funcobject.c
Add support for func_closure.
Python/import.c
Change the magic number.
Python/marshal.c
Track changes to code objects.
Jeremy Hylton [Thu, 25 Jan 2001 17:01:49 +0000 (17:01 +0000)]
Fix bug reported by Ka-Ping Yee: The compiler botched parsing function
parameters that contained both anonymous tuples and *arg or **arg. Ex:
def f(a, (b, c), *d): pass
Fix the symtable_params() to generate names in the right order for
co_varnames slot of code object. Consider *arg and **arg before the
"complex" names introduced by anonymous tuples.
Skip Montanaro [Thu, 25 Jan 2001 13:47:00 +0000 (13:47 +0000)]
fail more completely by deleting dbhash from sys.modules if bsddb can't be
loaded - prevents second import later from succeeding spuriously - mostly of
use in regression tests where the module might get imported more than once
Tim Peters [Thu, 25 Jan 2001 06:23:18 +0000 (06:23 +0000)]
Fix bugs introduced by rewrite (in particular, time-based initialization
got broken). Also added new method .jumpahead(N). This finally gives us
a semi-decent answer to how Python's RNGs can be used safely and efficiently
in multithreaded programs (although it requires the user to use the new
machinery!).
Tim Peters [Thu, 25 Jan 2001 03:36:26 +0000 (03:36 +0000)]
Reworked random.py so that it no longer depends on, and offers all the
functionality of, whrandom.py. Also closes all the "XXX" todos in
random.py. New frequently-requested functions/methods getstate() and
setstate(). All exported functions are now bound methods of a hidden
instance. Killed all unintended exports. Updated the docs.
FRED: The more I fiddle the docs, the less I understand the exact
intended use of the \var, \code, \method tags. Please review critically.
GUIDO: See email. I updated NEWS as if whrandom were deprecated; I
think it should be.
Tim Peters [Wed, 24 Jan 2001 23:06:53 +0000 (23:06 +0000)]
Supply long-missing docs for random.seed(). Extensive rewrite of module
intro docs.
*************** Fred: check my LaTeX! Also, the docs for whrandom should
*************** be moved into Obsolete Modules.
Guido van Rossum [Wed, 24 Jan 2001 22:14:43 +0000 (22:14 +0000)]
Check the Py_TPFLAGS_HAVE_RICHCOMPARE flag before using the
tp_richcompare field! (Hopefully this will make Python 2.1 binary
compatible with certain Zope extensions. :-)
Guido van Rossum [Wed, 24 Jan 2001 21:44:21 +0000 (21:44 +0000)]
The array type was missing the Py_TPFLAGS_DEFAULT initializer for the
tp_flags. This will become important when I introduce
Py_TPFLAGS_HAVE_RICHCOMPARE (as I should have!).
New asynchat.py from Sam Rushing: this foregoes using the regex module
to find the prefix of strings, thus removing a warning, and simply
uses straightforward string slicing.
Neil Schemenauer [Wed, 24 Jan 2001 17:24:33 +0000 (17:24 +0000)]
- build now happens in toplevel directory, add subdir paths to filenames
- change EXE to EXTEXT, there is an autoconf macro for it
- use PROG_INSTALL macro rather than always using install-sh
- add option to disable signal module (simplifies the makefile)
- create subdirs for object files (when building out of src dir)
- don't generate subdir makefiles
- generate "boot" makefile
Neil Schemenauer [Wed, 24 Jan 2001 17:16:22 +0000 (17:16 +0000)]
Changes for flat makefile. Building of modules happens from toplevel
directory. Modify meaning of -s option to specify the Modules directory.
Add -l option to specify library source directory when building extension
modules. Perhaps these names should be switched to avoid breaking old
code. Add -c compiler option to when emitting rules to build object files.
Part of patch #102409: special cases for Cygwin:
Lib/distutils/command/build_ext.py(build_ext.finalize_options): Add
Cygwin specific code to append Python's library directory to the
extension's list of library directories.
(build_ext.get_libraries): Add Cygwin specific code to append Python's
(import) library to the extension's list of libraries.
Tim Peters [Wed, 24 Jan 2001 10:13:46 +0000 (10:13 +0000)]
test___all__ was failing on WIndows because locale.py doesn't really
know which names it exports. Didn't fix its ignorance, but patched
over the consequence.
Fredrik Lundh [Wed, 24 Jan 2001 07:59:11 +0000 (07:59 +0000)]
Move uchhash functionality into unicodedata (after the recent
crop of changes, the files are small enough to do this). Also
adds "name" and "lookup" functions to unicodedata.
Barry Warsaw [Wed, 24 Jan 2001 04:16:09 +0000 (04:16 +0000)]
__all__: removed "error", "abort", "readonly", as these are not
exportable module attributes (they're attributes on the IMAP class).
Fixed the case typo on Time2Internaldate.
Modified version of part of patch #102409 for Cygwin:
Get platform-specific modules right on Cygwin
Getting a string value for the platform has been factored out into
get_platform()