Commit Graph

1572 Commits

Author SHA1 Message Date
Paul Sokolovsky e3cfc0d33d objstr: Refactor to work with char pointers instead of indexes.
In preparation for unicode support.
2014-06-14 06:30:30 +03:00
Paul Sokolovsky 7ddbd1bee7 unicode: Add trivial implementation of unichar_charlen(). 2014-06-14 06:30:30 +03:00
Paul Sokolovsky b0bb458810 unicode: String API is const byte*.
We still have that char vs byte dichotomy, but majority of string operations
now use byte.
2014-06-14 06:22:11 +03:00
Paul Sokolovsky 2ec38a17d4 objstr: Be 8-bit clean even for repr().
This will allow roughly the same behavior as Python3 for non-ASCII strings,
for example, print("<phrase in non-Latin script>".split()) will print list
of words, not weird hex dump (like Python2 behaves). (Of course, that it
will print list of words, if there're "words" in that phrase at all, separated
by ASCII-compatible whitespace; that surely won't apply to every human
language in existence).
2014-06-14 01:21:13 +03:00
Damien George c037694957 py, gc: Revert ret_ptr to void*, casting to byte* for memset. 2014-06-13 22:33:31 +01:00
Damien George 63b2237323 Merge branch 'gc-pointers' of github.com:stinos/micropython into stinos-gc-pointers 2014-06-13 22:30:46 +01:00
Paul Sokolovsky e22cddbe2a stream: Use mp_obj_is_true() for EOF testing.
Getting a length of string may be expensive, depending on the underlying
implementation.
2014-06-13 23:53:10 +03:00
stijn f33385f56d gc: Use byte* pointers instead of void* for pointer arithmetic
void* is of unknown size
2014-06-13 20:42:06 +02:00
Damien George 8340c48389 py: Revert change of include, "" back to <> for mpconfigport.h. 2014-06-12 19:50:17 +01:00
Paul Sokolovsky fbdf2f1d63 py: Rename builtin "io" to "_io".
Functionality we provide in builtin io module is fairly minimal. Some
code, including CPython stdlib, depends on more functionality. So, there's
a choice to either implement it in C, or move it _io, and let implement other
functionality in Python. 2nd choice is pursued. This setup matches CPython
too (_io is builtin, io is Python-level).
2014-06-12 01:22:25 +03:00
Damien George 8a0801ad24 py: Make 3 functions static. 2014-06-11 19:55:46 +01:00
Damien George 73c98d8709 py: Fix static defn in qstr; include mpconfigport.h with "" (not <>). 2014-06-11 19:18:03 +01:00
Paul Sokolovsky 0c0f446840 objfun: Remove no longer used mp_obj_fun_prepare_simple_args(). 2014-06-11 20:43:47 +03:00
Paul Sokolovsky 5f4a667ea4 objgenerator: Finish refactor to use mp_setup_code_state(). 2014-06-11 20:43:47 +03:00
Paul Sokolovsky f77d0c5bb3 objgenerator: First iteration of refactor to use mp_setup_code_state(). 2014-06-11 20:43:47 +03:00
Paul Sokolovsky 49df795d1d objfun: Factor out mp_setup_code_state() function to set up code_state object.
It needs to be reused for generator functions, too.
2014-06-11 20:43:47 +03:00
Damien George 58cbb4d661 py: Implement __contains__ special method. 2014-06-10 23:07:56 +01:00
Chris Angelico 1f44e118f0 Remove unnecessary bounds check from mp_seq_get_fast_slice_indexes.
At this point, start will be >= 0, so checking if stop < 0 is redundant with
checking if start > stop a few lines later.
2014-06-10 03:59:55 +10:00
Paul Sokolovsky 195de3247b objtype: Fix passing of class param to inherited classmethods.
This is getting more and more tangled, but that's old news.
2014-06-08 22:28:44 +03:00
Paul Sokolovsky 639863d36e objtype: Optimize stack usage mp_obj_class_lookup().
As before, instead of pushing constant values on stack again and again, just
pass around pointer to a structure.
2014-06-08 20:50:12 +03:00
Damien George df896eceef Merge branch 'alloca' of github.com:marcusva/micropython into marcusva-alloca 2014-06-08 13:18:14 +01:00
Damien George 049a7a8153 py: Simplify function call of a bytecode object. 2014-06-08 00:37:40 +01:00
Paul Sokolovsky b4efac14cd py: Make sure getattr() works with non-interned strings (by interning them). 2014-06-08 01:15:06 +03:00
Damien George d31a093f9c Merge branch 'master' of github.com:micropython/micropython
Conflicts:
	py/emitglue.c
2014-06-07 22:02:35 +01:00
Paul Sokolovsky 5473f743f3 objtype: Enable __lt__ method support for instances. 2014-06-08 00:01:46 +03:00
Damien George f0778a7ccb py: Implement default keyword only args.
Should finish addressing issue #524.
2014-06-07 22:01:00 +01:00
Paul Sokolovsky b9b9354e6c modsys: Add optional support for sys.platform.
Ports which wants to have it, should define MICROPY_PY_SYS_PLATFORM to a
string value they need.
2014-06-07 23:40:04 +03:00
Paul Sokolovsky 7e4a2b0edc py: Add generic mp_not_implemented() func to use instead of assert().
Benefits: won't crash baremetal targets, will provide Python source location
when not implemented feature used (it will no longer provide C source
location, but just grep for error message).
2014-06-07 23:26:27 +03:00
Damien George aabd83ea20 py: Merge mp_execute_bytecode into fun_bc_call.
This reduces stack usage by 16 words (64 bytes) for stmhal/ port.

See issue #640.
2014-06-07 14:16:08 +01:00
Damien George 82ed3d62f6 py, mk: Revert change where build variables set with ?=.
?= operator does not do delayed expansion (unlike =).
2014-06-07 13:14:45 +01:00
Marcus von Appen 0c90eb1658 - FreeBSD provides alloca() via stdlib.h, in contrast to Linux and Windows
- Move the includes for alloca() intp mpconfigport.h
2014-06-07 09:36:04 +02:00
Marcus von Appen 8ffc02495f - Let the build environment decide about the toolchain to be used, in case
there are special tweaks and paths to be considered. Just provide some
  defaults, in case the values are undefined.
- py-version.sh does not need any bash specific features.
- Use libdl only on Linux for now. FreeBSD provides dl*() calls from libc.
2014-06-07 09:16:42 +02:00
Chris Angelico de09caaa37 Bring the C and Python compute_hash functions into consistency 2014-06-07 07:06:18 +10:00
Paul Sokolovsky d72bc2713a objint: Fix corner case in buffer access. 2014-06-06 23:08:37 +03:00
Dave Hylands b69f9fa31f Fix str.modulo when precision is specified. 2014-06-05 23:09:02 -07:00
Paul Sokolovsky 380f147d2e modgc: Real 64-bit cleanness. 2014-06-06 03:01:39 +03:00
Paul Sokolovsky a3ef8087e8 modgc: 64-bit cleanness. 2014-06-06 02:34:17 +03:00
Paul Sokolovsky 755a55f507 modgc: Implement return value for gc.collect(), enable on Unix. 2014-06-05 22:48:02 +03:00
Damien George d4c2bddd0c py: Raise TypeError when trying to format non-int with %x,%o,%X.
This behaviour follows Python 3.5 standard (in 3.4 it's a
DeprecationWarning which we'd rather make a TypeError).
2014-06-05 19:44:54 +01:00
Paul Sokolovsky f675ff3957 Merge pull request #665 from Rosuav/naming3.3
Change comments (mainly URLs) to no longer specifically say Python 3.3
2014-06-05 21:17:46 +03:00
Damien George 11de8399fe py: Small changes to objstr.c, including a bug fix.
Some small fixed:

- Combine 'x' and 'X' cases in str format code.

- Remove trailing spaces from some lines.

- Make exception messages consistently begin with lower case (then
needed to change those in objarray and objtuple so the same
constant string data could be used).

- Fix bug with exception message having %c instead of %%c.
2014-06-05 18:57:38 +01:00
Chris Angelico daf973ae00 Change comments (mainly URLs) to no longer specifically say Python 3.3 2014-06-06 03:51:03 +10:00
Paul Sokolovsky 75ce9256b2 objstr: Implement "%(key)s" % {} formatting for strings and dicts.
Also, make sure that args to "*" format specifiers are bounds-checked
properly and don't lead for segfaults in case of mismatch.
2014-06-05 20:06:15 +03:00
Chris Angelico 9ab8ab2117 Replace assert(0) with a self-documenting TODO string 2014-06-05 06:05:57 +10:00
Chris Angelico 4867413e69 Simplify detection of quote characters in mp_str_print_quoted.
Once a double quote has been found, the subsequent discovery of a single quote
won't change behaviour at all, so don't bother looking for one.
2014-06-04 03:26:40 +10:00
Chris Angelico 29bf7393c1 Correct file reference (there's no qstrraw.h) 2014-06-04 03:15:46 +10:00
Damien George b294a7e3c9 py: Properly fix configuration of float and math module. 2014-06-03 13:43:20 +01:00
Damien George 3f52262465 py: Allow tail call optimisation in mp_call_function_n_kw.
This saves 4 words of stack space per Python call.
2014-06-03 13:40:16 +01:00
Damien George 65ec33200a py: Fix configuration of math module. 2014-06-03 12:33:38 +00:00
Damien George bcb6ca4d5e py: Implement full behaviour of dict.update(), and dict().
Add keyword args to dict.update(), and ability to take a dictionary as
argument.

dict() class constructor can now use dict.update() directly.

This patch loses fast path for dict(other_dict), but is that really
needed?  Any anyway, this idiom will now re-hash the dictionary, so is
arguably more memory efficient.

Addresses issue #647.
2014-06-03 12:53:44 +01:00
Paul Sokolovsky 411732e93b vm: If there's no lineno info, set lineno in traceback to 0, not 1.
To clearly signify that lineno is not known.
2014-06-03 12:32:59 +03:00
Paul Sokolovsky b8f117dd32 py: For optimization level -O3 and higher, remove lineno info from bytecode. 2014-06-03 12:32:59 +03:00
Paul Sokolovsky d3439d0c60 py: Instead of having "debug on" var, have "optimization level" var.
This allows to have multiple "optimization" levels (CPython has two
(-OO removes docstrings), we can have more).
2014-06-03 12:32:59 +03:00
Paul Sokolovsky f753971e5d showbc: Make micropython -v also dump bytecode in hex form. 2014-06-03 01:39:13 +03:00
Paul Sokolovsky a4ac5b9f05 showbc: Make sure it's possible to trace MAKE_FUNCTION arg to actual bytecode. 2014-06-03 01:26:51 +03:00
Paul Sokolovsky 8bf8404c15 showbc: Print code block header at the beginning, not in the middle of dump.
Also, dump code block in bytes.
2014-06-02 16:35:57 +03:00
Paul Sokolovsky b325d25e46 lexer: Add another comment for somewhat obscure way __debug__ is handled. 2014-06-02 16:35:57 +03:00
Paul Sokolovsky 62798831be modstruct: Add one more extension to typecodes - 'S', a pointer to C string.
Also, add comment with description of extension to CPython's typecodes.
2014-06-02 16:35:56 +03:00
Damien George fcc9cf63f1 py, str: Replace enum with actual function pointer.
This way, it's slightly more efficient, uses less ROM (60 bytes less
for stmhal), and doesn't require to raise exception if bad operation
given.
2014-06-01 18:22:09 +01:00
Damien George c49ddb9315 py: Fix configurability of builtin slice. 2014-06-01 13:49:35 +01:00
Damien George 3ebd4d0cae py: Add option to disable set() object (enabled by default). 2014-06-01 13:46:47 +01:00
Damien George fb510b3bf9 Rename bultins config variables to MICROPY_PY_BUILTINS_*.
This renames:
MICROPY_PY_FROZENSET -> MICROPY_PY_BUILTINS_FROZENSET
MICROPY_PY_PROPERTY -> MICROPY_PY_BUILTINS_PROPERTY
MICROPY_PY_SLICE -> MICROPY_PY_BUILTINS_SLICE
MICROPY_ENABLE_FLOAT -> MICROPY_PY_BUILTINS_FLOAT

See issue #35 for discussion.
2014-06-01 13:32:54 +01:00
Damien George c60a261ef0 py, vm: Replace save_ip, save_sp with code_state->{ip, sp}.
This may seem a bit of a risky change, in that it may introduce crazy
bugs with respect to volatile variables in the VM loop.  But, I think it
should be fine: code_state points to some external memory, so the
compiler should always read/write to that memory when accessing the
ip/sp variables (ie not put them in registers).

Anyway, it passes all tests and improves on all efficiency fronts: about
2-4% faster (64-bit unix), 16 bytes less stack space per call (64-bit
unix) and slightly less executable size (unix and stmhal).

The reason it's more efficient is save_ip and save_sp were volatile
variables, so were anyway stored on the stack (in memory, not regs).
Thus converting them to code_state->{ip, sp} doesn't cost an extra
memory dereference (except maybe to get code_state, but that can be put
in a register and then made more efficient for other uses of it).
2014-06-01 12:32:28 +01:00
Damien George 1b87d1098a Merge branch 'vm-alloca' of github.com:pfalcon/micropython into pfalcon-vm-alloca
Conflicts:
	py/vm.c

Fixed stack underflow check.  Use UINT_FMT/INT_FMT where necessary.
Specify maximum VM-stack byte size by multiple of machine word size, so
that on 64 bit machines it has same functionality as 32 bit.
2014-06-01 12:06:17 +01:00
Damien George 5b5562c1d1 py: Fix stack underflow with optimised for loop. 2014-05-31 17:59:11 +01:00
Paul Sokolovsky b4ebad3310 vm: Factor out structure with code execution state and pass it around.
This improves stack usage in callers to mp_execute_bytecode2, and is step
forward towards unifying execution interface for function and generators
(which is important because generators don't even support full forms
of arguments passing (keywords, etc.)).
2014-05-31 18:22:01 +03:00
Paul Sokolovsky b16523aa95 vm: Don't unconditionally allocate state on stack, do that only if needed.
This makes sure that only as much stack allocated as actually used, reducing
stack usage for each Python function call.
2014-05-31 18:19:33 +03:00
Paul Sokolovsky ff8da0b835 vm: Detect stack underflow in addition to overflow. 2014-05-31 18:14:54 +03:00
Paul Sokolovsky ae9c82d5f3 objstr: str_uni_istype(): Spurious whitespace on empty lines. 2014-05-31 11:00:25 +03:00
Paul Sokolovsky f69b9d379c objstr: str_uni_istype(): Codestyle. 2014-05-31 10:59:34 +03:00
Kim Bauters a3f4b83018 add methods isspace(), isalpha(), isdigit(), isupper() and islower() to str 2014-05-31 07:30:57 +01:00
Paul Sokolovsky 1f07b7e3c3 py: Reformat few long functions argument lists for clarity. 2014-05-31 03:36:37 +03:00
Paul Sokolovsky b30a777ace objfun: Typo fixes in comments. 2014-05-31 02:24:47 +03:00
Damien George 25c84643b6 py: Fix break from within a for loop.
Needed to pop the iterator object when breaking out of a for loop.  Need
also to be careful to unwind exception handler before popping iterator.

Addresses issue #635.
2014-05-30 15:20:41 +01:00
Paul Sokolovsky 8827682b35 objstr: *strip(): If nothing is stripped, don't create dup string. 2014-05-30 03:15:17 +03:00
Paul Sokolovsky bcdffe53c6 objstr: *strip(): Fix handling of one-char subject strings. 2014-05-30 03:15:17 +03:00
Damien George f55cf10101 py: Implement bignum '&' with negatives on lhs and rhs.
Needs proper coverage testing.  Doesn't implement -ve & -ve.
Addresses issue #611.
2014-05-29 15:01:49 +01:00
Damien George d1e355ea8e py: Fix check of small-int overflow when parsing ints.
Also unifies use of SMALL_INT_FITS macro across parser and runtime.
2014-05-28 14:51:12 +01:00
Damien George 813ed3bda6 py: Make int(<longint>) work by just returning the longint. 2014-05-28 14:09:46 +01:00
Damien George 503d611033 py: Implement long int parsing in int(...).
Addresses issue #627.
2014-05-28 14:07:21 +01:00
Damien George d8675541a9 py, vm: Where possible, make variables local to each opcode.
This helps the compiler do its optimisation, makes it clear which
variables are local per opcode and which global, and makes it consistent
when extra variables are needed in an opcode (in addition to old obj1,
obj2 pair, for example).

Could also make unum local, but that's for another time.
2014-05-25 22:58:04 +01:00
Damien George f600a6a085 py: Slightly improve efficiency of mp_obj_new_str; rename str_new.
Reorder interning logic in mp_obj_new_str, to be more efficient.

str_new is globally accessible, so should be prefixed with mp_obj_.
2014-05-25 22:34:34 +01:00
Damien George 2617eebf2f Change const byte* to const char* where sensible.
This removes need for some casts (at least, more than it adds need
for new casts!).
2014-05-25 22:27:57 +01:00
Damien George f88fc7bd23 Merge branch 'pfalcon-keep-strings-uninterned' 2014-05-25 22:13:47 +01:00
Damien George 5042bce8fb py: Don't automatically intern strings in parser.
This completes non-automatic interning of strings in the parser, so that
doc strings don't take up RAM.  It complicates the parser and compiler,
and bloats stmhal by about 300 bytes.  It's complicated because now
there are 2 kinds of parse-nodes that can be strings: interned leaves
and non-interned structs.
2014-05-25 22:06:06 +01:00
Paul Sokolovsky 5fd5af98d0 objlist: Implement support for arbitrary (3-arg) slices. 2014-05-25 22:12:56 +03:00
Paul Sokolovsky de4b9329f9 py: Refactor slice helpers, preparing to support arbitrary slicing. 2014-05-25 21:21:57 +03:00
Damien George 3aaabd11a0 Merge branch 'keep-strings-uninterned' of github.com:pfalcon/micropython into pfalcon-keep-strings-uninterned
Conflicts:
	py/parse.c
2014-05-25 13:19:31 +01:00
Paul Sokolovsky ff4b6daa4f sequence: Throw exception for not implemented slice steps. 2014-05-25 03:02:57 +03:00
Paul Sokolovsky 2705f4c782 objlist: Implement growing slice assignment.
This means that complete slice operations are supported for lists (but not
for bytearray's and array.array's).
2014-05-25 02:36:12 +03:00
Paul Sokolovsky 69d081a7cf py: Handle case of slice start > stop in common sequence function. 2014-05-25 02:29:40 +03:00
Paul Sokolovsky afaaf535e6 objslice: Support arbitrary objects start, stop, and step.
Older int-only encoding is not expressive enough to support arbitrary slice
assignment operations.
2014-05-25 01:42:24 +03:00
Damien George 7a4ddd2428 Add SystemExit exception and use it in unix/ and stmhal/ ports.
Addresses issue #598.
2014-05-24 23:32:19 +01:00
Damien George ee3fd46f13 Rename configuration variables controling Python features.
Now of the form MICROPY_PY_*.  See issue #35.
2014-05-24 23:03:12 +01:00
Paul Sokolovsky d098c6bf85 objstr: Implement .endswith(). 2014-05-24 22:46:51 +03:00
Paul Sokolovsky 561789d718 unix modsocket: Make .makefile() method more compliant.
.makefile() should allow to specify which stream time to create - byte
or text.
2014-05-24 21:24:37 +03:00
Paul Sokolovsky 806ea1f6ca py: Initial attempts to actually allow implementing __new__ in Python.
Caveat is that __new__ should recurse to base class __new__, and ultimately,
object.__new__ is what handles instance allocation.
2014-05-22 00:32:00 +03:00
Paul Sokolovsky 0c937fa25a objobject: Fix arguments to __init__(). 2014-05-21 23:10:48 +03:00
Damien George 90886807a1 Merge branch 'master' of github.com:micropython/micropython 2014-05-21 20:35:02 +01:00
Damien George 58ebde4664 Tidy up some configuration options.
MP_ALLOC_* -> MICROPY_ALLOC_*
MICROPY_PATH_MAX -> MICROPY_ALLOC_PATH_MAX
MICROPY_ENABLE_REPL_HELPERS -> MICROPY_HELPER_REPL
MICROPY_ENABLE_LEXER_UNIX -> MICROPY_HELPER_LEXER_UNIX
MICROPY_EXTRA_* -> MICROPY_PORT_*

See issue #35.
2014-05-21 20:32:59 +01:00
Paul Sokolovsky a8408a8abe objtype: super: Fall back to "object" lookup as last resort.
Also, define object.__init__() (semantically empty, purely CPython compat
measure). Addresses #520.
2014-05-21 22:27:03 +03:00
Paul Sokolovsky 6a410789b8 objtype: super: Add stop condition for looking up in base types. 2014-05-21 22:27:03 +03:00
Damien George 0fd01683c6 Merge pull request #607 from Anton-2/osx-clang
Allow compilation of unix port under clang on OS X
2014-05-21 19:51:05 +01:00
Damien George 6ac5dced24 py: Rename MP_OBJ_NOT_SUPPORTED to MP_OBJ_NULL.
See issue #608 for justification.
2014-05-21 19:42:43 +01:00
Paul Sokolovsky 053765414c modstruct: struct_calcsize: Fix case of uninitialized var. 2014-05-20 16:34:05 +03:00
Paul Sokolovsky 9e29666bf9 py: Implement proper separation between io.FileIO and io.TextIOWrapper.
io.FileIO is binary I/O, ans actually optional. Default file type is
io.TextIOWrapper, which provides str results. CPython3 explicitly describes
io.TextIOWrapper as buffered I/O, but we don't have buffering support yet
anyway.
2014-05-19 21:56:07 +03:00
Paul Sokolovsky 52386cafa0 objexcept: Implement explicit __init__ method, useful for subclasses. 2014-05-19 21:56:07 +03:00
Paul Sokolovsky 13684fd60b objtype: Separate __new__ and __init__ methods.
Now schedule is: for native types, we call ->make_new() C-level method, which
should perform actions of __new__ and __init__ (note that this is not
compliant, but is efficient), but for user types, __new__ and __init__ are
called as expected.

Also, make sure we convert scalar attribute value to a bound-pair tight in
mp_obj_class_lookup() method, which avoids converting it again and again in
its callers.
2014-05-19 21:56:06 +03:00
Sven Wegener 7ba0fedf13 py: Fix mp_obj_t -> mp_const_obj_t for mp_obj_int_get_checked()
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
2014-05-17 11:21:12 +02:00
Paul Sokolovsky bf27140193 py: More mp_identity usage. 2014-05-17 11:20:10 +03:00
Paul Sokolovsky ab7bf28489 py: More const usage. 2014-05-17 11:20:10 +03:00
Paul Sokolovsky c18ef2a9dd objstr: startswith(): Accept optional "start" arg. 2014-05-15 21:33:18 +03:00
Paul Sokolovsky 70328e419a py: Implement more complete bytes comparison handling. 2014-05-15 20:58:40 +03:00
Paul Sokolovsky ad3baec12f sequence: Fix yet another case of improper sequence comparison.
This time, in mp_seq_cmp_bytes(). How many more cases are still lurking?
2014-05-15 19:09:06 +03:00
Paul Sokolovsky a47b64ae2d objstringio: Implement io.BytesIO.
Done in generalized manner, allowing any stream class to be specified as
working with bytes.
2014-05-15 07:28:19 +03:00
Paul Sokolovsky 2a27365854 objstr.c: Partial implementation of .rsplit().
sep=None is TODO.
2014-05-14 02:42:20 +03:00
Damien George 51fab28e94 py: Improve mpz_and function.
This should now have correct (and optimal) behaviour.
2014-05-13 22:58:00 +01:00
Paul Sokolovsky da9f0924ef py, unix: Add copyright for modules I worked closely on. 2014-05-13 18:41:25 +03:00
Damien George 561e425903 py: Fix bug in mpz_and function.
Addresses issue #610.
2014-05-12 23:27:29 +01:00
Damien George 915197a8f9 py: Remove emit_glue init and deinit. Needed only for debugging.
Debugging output for emit_glue now simplified so that the init and
deinit functions are no longer needed.
2014-05-12 23:11:14 +01:00
Damien George 97f9a2813e py: Add support for __debug__ constant.
__debug__ now resolves to True or False.  Its value needs to be set by
mp_set_debug().

TODO: call mp_set_debug in unix/ port.

TODO: optimise away "if False:" statements in compiler.
2014-05-12 23:07:34 +01:00
Damien George 96f137b24a py: Rename BYTE_CODE to BYTECODE (this was missed in previous rename). 2014-05-12 22:35:37 +01:00
Paul Sokolovsky df94b717b4 modstruct: Implement count specifier for strings (e.g. "100s").
Infra for counts of other types is there, need last mile to be implemented.
2014-05-12 23:45:50 +03:00
Antonin ENFRUN da1fffaa09 Fix some unused variables, and silence a clang warning about initialization override in vmentrytable.h 2014-05-12 09:06:18 +02:00
Antonin ENFRUN 6caae0bcb1 unix: Create __bss_start and _end symbols for Mach-O targets.
It's a hack, but can't find a cleaner way to do it.
2014-05-12 00:13:10 +02:00
Paul Sokolovsky 147c80bf7c modstruct: Use MP_OBJ_FUN_ARGS_MAX instead of -1. 2014-05-11 22:50:27 +03:00
Paul Sokolovsky 5ebd5f0f19 objstr: Slice indexing: support bytes properly. 2014-05-11 21:22:59 +03:00
Paul Sokolovsky bfb8819c0c objstr: Make .split() support bytes. 2014-05-11 21:17:28 +03:00
Paul Sokolovsky 5e5d69b35e objstr: Make .join() support bytes. 2014-05-11 21:13:01 +03:00
Paul Sokolovsky 7e7940c39d py: Fix __len__ special method result handling.
Having both MP_OBJ_NOT_SUPPORTED and MP_OBJ_NULL is arguably confusing.
2014-05-11 20:51:31 +03:00
Paul Sokolovsky c48d6f7add py: Don't expect that type->getiter() always returns iterator, check for NULL.
This is better than forcing each getiter() implementation to raise exception.
2014-05-11 20:51:31 +03:00
Paul Sokolovsky 0f570cfccf showbc: Decode MAP_ADD. 2014-05-11 20:51:31 +03:00
Paul Sokolovsky ff30666c69 py: Add basic implementation of hasattr() function. 2014-05-11 20:51:30 +03:00
Damien George ee7a880d6e py: Use mp_arg_check_num in more places.
Updated functions now do proper checking that n_kw==0, and are simpler
because they don't have to explicitly raise an exception.  Down side is
that the error messages no longer include the function name, but that's
acceptable.

Saves order 300 text bytes on x64 and ARM.
2014-05-11 18:37:21 +01:00
Damien George 1d34e32431 py: frozenset() creates an empty frozenset. 2014-05-11 18:28:48 +01:00
Damien George 2323ef9182 py: Rename globally-accessible tuple functions, prefix with mp_obj_.
Likely there are other functions that should be renamed, but this is a
start.
2014-05-11 18:00:45 +01:00
Damien George c59af52e84 py: Rename some unichar functions for consistency. 2014-05-11 17:53:11 +01:00
Damien George 89755ae67f py: Rename MICROPY_SYS_EXIT to MICROPY_MOD_SYS_EXIT.
For consistency with MICROPY_MOD_SYS_STDFILES, etc.
2014-05-11 17:35:43 +01:00
Paul Sokolovsky eea0118654 py: Give up and make mp_obj_str_get_data() deal with bytes too.
This is not fully correct re: error handling, because we should check that
that types are used consistently (only str's or only bytes), but magically
makes lot of functions support bytes.
2014-05-11 13:51:24 +03:00
Paul Sokolovsky b2d4fc06fc objstr: Make *strip() accept bytes. 2014-05-11 13:17:29 +03:00
Paul Sokolovsky ea9708092e objtuple: Go out of the way to support comparison of subclasses.
Two things are handled here: allow to compare native subtypes of tuple,
e.g. namedtuple (TODO: should compare type too, currently compared
duck-typedly by content). Secondly, allow user sunclasses of tuples
(and its subtypes) be compared either. "Magic" I did previously in
objtype.c covers only one argument (lhs is many), so we're in trouble
when lhs is native type - there's no other option besides handling
rhs in special manner. Fortunately, this patch outlines approach with
fast path for native types.
2014-05-11 03:33:19 +03:00
Paul Sokolovsky 9511f60f01 py: Don't try to "bind" types store as attributes of objects.
This was hit when trying to make urlparse.py from stdlib run. Took
quite some time to debug.

TODO: Reconsile bound method creation process better, maybe callable is
to generic type to bind at all?
2014-05-11 03:33:19 +03:00
Paul Sokolovsky 69f3eb2c96 objstr: Make .[r]partition() work with bytes. 2014-05-11 03:33:19 +03:00
Paul Sokolovsky 285683d203 objboundmeth: If detailed reporting enabled, print object content.
Similar to closure and cell.
2014-05-11 02:27:42 +03:00
Paul Sokolovsky 7aca1cae34 py: Start making good use of mp_const_obj_t. 2014-05-11 02:26:42 +03:00
Paul Sokolovsky 3f8d34ca83 objlist: Support list slice deletion. 2014-05-10 23:03:30 +03:00
Paul Sokolovsky 94d8246272 objlist: Implement non-growing slice assignment.
Slice value to assign can be only a list so far too.
2014-05-10 22:24:31 +03:00
Paul Sokolovsky d915a52eb6 py: Fix prefix on few sequence helpers, was incorrectly "mp_". 2014-05-10 21:36:33 +03:00
Paul Sokolovsky aa4d19a05c objtype: Comments for duplicating code in runtime.c. 2014-05-10 21:26:08 +03:00
Paul Sokolovsky 1a7403bb74 objtype: Implement ->getiter() method for instances.
Includes support for native bases.
2014-05-10 21:26:08 +03:00
Paul Sokolovsky 0bc15941c2 py: Make mp_obj_print() handle null object w/o segfault if debug build.
Happens regularly when used for debugging.
2014-05-10 21:26:07 +03:00
Paul Sokolovsky 7067d69bcc objnamedtuple: Support iteration. 2014-05-10 21:26:07 +03:00
Damien George 0fb80c303a py: Compress a little the bytecode emitter structure. 2014-05-10 18:16:21 +01:00
Damien George 9597771fe4 py, emitters: Fix dummy_data size for bytecode and thumb.
Thumb uses a bit less RAM, bytecode uses a tiny bit more, to avoid
overflow of the dummy buffer in certain cases.

Addresses issue #599.
2014-05-10 18:07:08 +01:00
Damien George 7db57bf6b2 Merge branch 'master' of github.com:micropython/micropython 2014-05-10 17:50:05 +01:00
Paul Sokolovsky 6913521911 objstr: Implement .lower() and .upper(). 2014-05-10 19:49:07 +03:00
Damien George e1199ecf10 py, lexer: Add allocation policy config; return NULL if can't allocate. 2014-05-10 17:48:01 +01:00
Damien George 1b82e9af5c py: Improve handling of memory error in parser.
Parser shouldn't raise exceptions, so needs to check when memory
allocation fails.  This patch does that for the initial set up of the
parser state.

Also, we now put the parser object on the stack.  It's small enough to
go there instead of on the heap.

This partially addresses issue #558.
2014-05-10 17:36:41 +01:00
Paul Sokolovsky ad6178bb08 builtinimport: Fix broken namespace imports due to dup vstr_cut_tail_bytes(). 2014-05-10 19:00:03 +03:00
Paul Sokolovsky f9589d2f23 builtinimport: Fix comment orphaned by one of previous commits. 2014-05-10 18:46:02 +03:00
Paul Sokolovsky deaeaac469 modsys: Enable sys.exit() per port after all. 2014-05-10 17:26:47 +03:00
Paul Sokolovsky d99e9083cb modsys, unix: Add sys.exit(), should be implemented by a port. 2014-05-10 16:56:21 +03:00
Paul Sokolovsky d80e2476c7 py: Disable frozenset by default, enable on unix.
Takes 416 text bytes on x86.
2014-05-10 16:56:20 +03:00
Paul Sokolovsky b181b581aa objset: Give up and implement frozenset.
Tired of patching CPython stdlib for it.
2014-05-10 16:56:20 +03:00
Paul Sokolovsky d86020ac4f objtype: Don't treat inheritance from "object" as from native type.
"object" type in MicroPython currently doesn't implement any methods, and
hopefully, we'll try to stay like that for as long as possible. Even if we
have to add something eventually, look up from there might be handled in
adhoc manner, as last resort (that's not compliant with Python3 MRO, but
we're already non-compliant). Hence: 1) no need to spend type trying to
lookup anything in object; 2) no need to allocate subobject when explicitly
inheriting from object; 3) and having multiple bases inheriting from object
is not a case of incompatible multiple inheritance.
2014-05-10 16:56:20 +03:00
Damien George d0a5bf34f7 py: Tidy up returning NULL which should be MP_OBJ_NOT_SUPPORTED. 2014-05-10 13:55:11 +01:00
Damien George ccc85ea0da py: Combine native emitters to 1 glue function; distinguish viper.
This patch simplifies the glue between native emitter and runtime,
and handles viper code like inline assember: return values are
converted to Python objects.

Fixes issue #531.
2014-05-10 13:40:46 +01:00
Damien George 3417bc2f25 py: Rename byte_code to bytecode everywhere.
bytecode is the more widely used.  See issue #590.
2014-05-10 10:36:38 +01:00
Paul Sokolovsky 6e8085b425 py: Fix base "detection" for int('0<hexdigit>', 16). 2014-05-10 04:45:15 +03:00
Paul Sokolovsky 7b0f9a7d9b bytes: Implement comparison and other binary operations.
Should support everything supported by strings.
2014-05-10 04:45:02 +03:00
Paul Sokolovsky 070c78af5d runtime0.h: Group binary ops by fives.
So one has some chance to convert numeric op code into symbol.
2014-05-10 04:44:55 +03:00
stijn 5ed284a15e windows: Add modtime implementation 2014-05-09 13:58:15 +02:00
Damien George 8c1c7488b2 Add gc.enable, gc.disable; remove pyb.gc. 2014-05-08 23:04:49 +01:00
Paul Sokolovsky 62b5f42d81 Merge pull request #568 from stinos/windows-msvc-port
Windows MS Visual C port
2014-05-09 00:03:42 +03:00
Paul Sokolovsky 9e76b1181b Draft approach towards resolving https://github.com/micropython/micropython/issues/560#issuecomment-42213955 2014-05-08 22:43:46 +03:00
Damien George ffae48d750 py, compiler: Add basic support for A=const(123).
You can now do:

    X = const(123)
    Y = const(456 + X)

and the compiler will replace X and Y with their values.

See discussion in issue #266 and issue #573.
2014-05-08 15:58:39 +00:00
stijn 01d6be4d51 Windows MSVC port
Extend the windows port so it compiles with the toolchain from Visual Studio 2013
2014-05-08 10:06:43 +02:00
Damien George d509ac25f9 py: Fix stack access in thumb native emitter. 2014-05-07 23:27:45 +01:00
Damien George c3602e159c py: Fix emitcpy, to work with latest changes to PASS variables. 2014-05-07 18:57:32 +01:00
Damien George a32c1e41cc py: Improve native emitter; now supports more opcodes. 2014-05-07 18:30:52 +01:00
Damien George 36db6bcf54 py, compiler: Improve passes; add an extra pass for native emitter. 2014-05-07 17:24:22 +01:00
Damien George ca25c15d56 py, compiler: Start adding support for compile-time constants.
Just a start, no working code yet.  As per issue #573.
2014-05-07 15:42:03 +01:00
Paul Sokolovsky 0ef015b253 stream: Make non-blcoking stream support configurable.
Enable only on unix. To avoid unpleasant surprises with error codes.
2014-05-07 02:25:45 +03:00
Paul Sokolovsky b9be45e421 stream: Use standard name of DEFAULT_BUFFER_SIZE. 2014-05-07 02:17:14 +03:00
Paul Sokolovsky 6e73143de8 stream: Add compliant handling of non-blocking readall(). 2014-05-07 02:17:14 +03:00
Paul Sokolovsky a592104acd stream: Add compliant handling of non-blocking read()/write().
In case of empty non-blocking read()/write(), both return None. read()
cannot return 0, as that means EOF, so returns another value, and then
write() just follows. This is still pretty unexpected, and typical
"if not len:" check would treat this as EOF. Well, non-blocking files
require special handling!

This also kind of makes it depending on POSIX, but well, anything else
should emulate POSIX anyway ;-).
2014-05-07 02:17:14 +03:00
Damien George 93afa230a4 py, parser: Add commented-out code to discard doc strings.
Doesn't help with RAM reduction because doc strings are interned as soon
as they are encountered, which is too soon to do any optimisations on
them.
2014-05-06 21:44:11 +01:00
Damien George c53b408f28 Merge branch 'master' of https://github.com/micropython/micropython
Conflicts:
	py/argcheck.c
	py/objenumerate.c
	py/runtime.h
2014-05-06 16:52:35 +00:00
Damien George 491cbd6a7c py: Add keyword arg support to enumerate constructor.
Need to have a policy as to how far we go adding keyword support to
built ins.  It's nice to have, and gets better CPython compatibility,
but hurts the micro nature of uPy.

Addresses issue #577.
2014-05-06 16:38:54 +00:00
Paul Sokolovsky b473d0ae86 py: bytes(), str(): Add NotImplementedError for kwargs.
Addresses #567.
2014-05-06 19:31:58 +03:00
Paul Sokolovsky 47d3bd3b31 py: enumerate(): Add NotImplementedError for kwargs.
Addresses #577.
2014-05-06 19:31:49 +03:00
Paul Sokolovsky f9e54e0ea5 modgc: Add new module for GC-related functionality. 2014-05-06 02:28:49 +03:00
stijn 912ca7701d py: Comment exc_state member from mp_obj_gen_instance_t as it gives trouble
...to some compilers who can't process 2 zero-sized arrays in structs. It's
never referenced directly anyway.

See disussion on #568 as well.
2014-05-05 22:56:27 +03:00
Paul Sokolovsky 179977a0da py-version.sh: Use --always option of git describe. 2014-05-05 21:28:12 +03:00
Damien George 66e18f04d8 py: Turn down amount of RAM parser and compiler use.
There are 2 locations in parser, and 1 in compiler, where memory
allocation is not precise.  In the parser it's the rule stack and result
stack, in the compiler it's the array for the identifiers in the current
scope.  All other mallocs are exact (ie they don't allocate more than is
needed).

This patch adds tuning options (MP_ALLOC_*) to mpconfig.h for these 3
inexact allocations.

The inexact allocations in the parser should actually be close to
logarithmic: you need an exponentially larger script (absent pathological
cases) to use up more room on the rule and result stacks.  As such, the
default allocation policy for these is now to start with a modest sized
stack, but grow only in small increments.

For the identifier arrays in the compiler, these now start out quite
small (4 entries, since most functions don't have that many ids), and
grow incrementally by 6 (since if you have more ids than 4, you probably
have quite a few more, but it wouldn't be exponentially more).

Partially addresses issue #560.
2014-05-05 13:19:03 +01:00
Paul Sokolovsky 22a0d67c0f py-version.sh: Make it work in case no git tag is present. 2014-05-05 01:01:01 +03:00
Paul Sokolovsky 6b344d7816 py, unix: Add -v option, print bytecode dump if used.
This will work if MICROPY_DEBUG_PRINTERS is defined, which is only for
unix/windows ports. This makes it convenient to user uPy normally, but
easily get bytecode dump on the spot if needed, without constant recompiles
back and forth.

TODO: Add more useful debug output, adjust verbosity level on which
specifically bytecode dump happens.
2014-05-05 00:57:00 +03:00
Paul Sokolovsky 4187068cad showbc: Quote block name, so it was easily visible. 2014-05-04 22:42:11 +03:00
Damien George 04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George ff380c2558 Merge pull request #535 from pfalcon/blurb
Proposed license/copyright file header.
2014-05-03 22:56:50 +01:00
Damien George cff638a43a Merge branch 'mingw-float-printf' of github.com:stinos/micropython into stinos-mingw-float-printf 2014-05-03 22:41:40 +01:00
Damien George d5f5b2f766 py, stream: Implement readlines for a stream. 2014-05-03 22:01:32 +01:00
Damien George 349e4c4a2f py: Add --dirty flag to git describe. 2014-05-03 21:15:32 +01:00
stijn 72521a1c17 mingw: Fix number of exponent digits in floating point formatting
By default mingw outputs 3 digits instead of the standard 2 so all float
tests using printf fail. Using setenv at the start of the program fixes this.
To accomodate calling platform specific initialization a
MICROPY_MAIN_INIT_FUNC macro is used which is called in mp_init()
2014-05-03 20:15:15 +02:00
Damien George 977a0ce287 py: Print tag/version/git describe in uPy banner. 2014-05-03 19:02:14 +01:00
Damien George 93e51b594a stmhal: Enable cmath module. 2014-05-03 18:40:50 +01:00
Damien George 9c5fc83e6a py, objtype.c: Rename class_ to instance_ following change of typedef.
This follows up 0a7e01ae3c.
2014-05-03 17:19:35 +01:00
Damien George c12242e9df Merge pull request #546 from stinos/relax-makeqstrdata
More relaxed parsing of preprocessed qstr header
2014-05-03 13:27:04 +01:00
Paul Sokolovsky 7a14022604 Merge pull request #552 from stinos/mingw-alloca
py: Use <alloca.h> for alloca()
2014-05-03 14:39:47 +03:00
Paul Sokolovsky 418aca976c objclosure, objcell: Print detailed representation if was requested.
Well, it is bound to "detailed error reporting", but that's closest what we
have now without creating new entities.
2014-05-03 14:16:11 +03:00
stijn 1dc7f0427b More relaxed parsing of preprocessed qstr header
The original parsing would error out on any C declarations that are not typedefs
or extern variables. This limits what can go in mpconfig.h and mpconfigport.h,
as they are included in qstr.h. For instance even a function declaration would be
rejected and including system headers is a complete no-go.
That seems too limiting for a global config header, so makeqstrdata now
ignores everything that does not match a qstr definition.
2014-05-03 10:26:31 +02:00
stijn 98e2ee0ec1 py: Use <alloca.h> for alloca()
alloca() is declared in alloca.h which als happens to be included by stdlib.h.
On mingw however it resides in malloc.h only.
So if we include alloca.h directly, and add an alloca.h for mingw in it's port
directory we can get rid of the mingw-specific define to include malloc.h
and the other ports are happy as well.
2014-05-03 10:14:53 +02:00
Paul Sokolovsky f54bcbf099 py, unix: Make "mpconfig.h" be first included, as other headers depend on it.
Specifically, nlr.h does.
2014-05-02 17:48:40 +03:00
Paul Sokolovsky e0954d426f objtype: Work around stupid strict aliasing check. 2014-05-02 17:48:40 +03:00
Paul Sokolovsky 91e556af23 objexcept: Support tracebacks for user Exception subclasses. 2014-05-02 02:31:30 +03:00
Paul Sokolovsky 0a7e01ae3c objtype: Rename mp_obj_class_t -> mp_obj_instance_t and move to local header.
TODO: Rename methods.
2014-05-02 02:14:38 +03:00
Paul Sokolovsky d8351ca8a0 objtype: .print() Exception instances in adhoc way.
This is ugly, just as expected.
2014-05-02 02:00:47 +03:00
Paul Sokolovsky 28dfbc2ba2 Merge pull request #544 from lurch/fix-minmax
Fix the builtin min() and max() functions (and add tests).
2014-05-01 23:42:18 +03:00
Paul Sokolovsky 7917b731f6 objfun: More debug logging. 2014-05-01 23:22:11 +03:00
Paul Sokolovsky 5ba58f4a1a objgenerator: Fix check for too few args passed to gen function. 2014-05-01 23:22:11 +03:00
Paul Sokolovsky c3103b55c1 objgenerator: .print(): Output real underlying function name. 2014-05-01 23:22:11 +03:00
Andrew Scheller 37067666ee Fix the builtin min() and max() functions (and add tests).
Fixes #539
2014-05-01 21:21:43 +01:00
Paul Sokolovsky d32bab27bb py: Add copyright/license header to each file. 2014-05-01 02:54:16 +03:00
Paul Sokolovsky 1f85d6255d py: Add tentative scheme for error messages configuration. 2014-05-01 01:50:35 +03:00
Paul Sokolovsky 68551a8428 objfun: Add function name accessor and .print slot method. 2014-05-01 01:50:35 +03:00
Damien George 37977b7b27 Merge pull request #528 from pfalcon/native-subclass1
Initial support for subclassing native types
2014-04-30 21:02:50 +01:00
Paul Sokolovsky 22d0598818 objfun: Factor out function to report positional args mismatch. 2014-04-30 05:37:28 +03:00
Paul Sokolovsky e908591baa py: Abstract no-return attribute for functions a bit. 2014-04-30 05:35:18 +03:00
Paul Sokolovsky b1ce37d32e py: If setjmp NLR implementation is forced, omit native versions. 2014-04-30 04:19:20 +03:00
Paul Sokolovsky 851c856585 nlr.h: As we treat all warnings as errors, can't use #warning.
And this is not good.
2014-04-30 04:14:31 +03:00
Paul Sokolovsky 7f0419c0e5 objtype: Support calling normal methods inherited from native base class.
Biggest part of this support is refactoring mp_obj_class_lookup() to return
standard "bound member" pair (mp_obj_t[2]). Actual support of inherited
native methods is 3 lines then. Some inherited features may be not supported
yet (e.g. native class methods, native properties, etc., etc.). There may
be opportunities for further optimization too.
2014-04-30 02:14:30 +03:00
Paul Sokolovsky 443857de98 objtype: Add support for looking up non-method attrs in native base class. 2014-04-29 20:31:13 +03:00
Paul Sokolovsky 6ead0d2fbc objtype: Implement basic framework for subclassing native types.
This implements checking of base types, allocation and basic initialization,
and optimized support for special method lookups. Other features are not yet
supported.
2014-04-29 20:31:13 +03:00
Damien George 186e463a9e py: Fix bug in map lookup of interned string vs non-interned.
Had choice of either interning or forcing full equality comparison, and
chose latter.  See comments in mp_map_lookup.

Addresses issue #523.
2014-04-28 12:11:57 +01:00
Damien George 185f9c1c46 py: Fix lexerunix, where not all data may be read from a file.
Addresses issue #526.
2014-04-28 11:43:28 +01:00
Damien George 0c8fcb9c49 py: Remove silly comment about interning keywords.
Of course, keywords are turned into lexer tokens in the lexer, so will
never need to be interned (unless you do something like x="def").

As it is now, the following on pyboard makes no new qstrs:

    import pyb
    pyb.info()
2014-04-28 09:56:31 +01:00
Paul Sokolovsky a224067846 py: Clear allocated, but unused memory in containers.
Also, clear up freed slots in containers.

As a follow up to 32bef315be.
2014-04-28 00:33:21 +03:00
Paul Sokolovsky 7ce6a8fe46 objlist: We no longer need to assert on mem alloc results.
They either succeed or raise exception.
2014-04-28 00:33:21 +03:00
Paul Sokolovsky 48bf6b3bd0 objlist: Use static small int constructor. 2014-04-28 00:33:21 +03:00
Damien George 708c073250 py: Add '*' qstr for 'import *'; use blank qstr for comprehension arg. 2014-04-27 19:23:46 +01:00
Damien George 968bf34c4c py: Remove unnecessary LOAD_CONST_ID bytecode.
It's the same as LOAD_CONST_STR.
2014-04-27 19:12:05 +01:00
Damien George db12891918 py: Eliminate 'op' variable in VM dispatch loop.
Remembering the last op is rarely needed, and when it is, can simply use
*save_ip.
2014-04-27 18:19:06 +01:00
Damien George 9d181f62dc py: Save some ROM by shortening compiler error messages.
Messages are still explanatory, while taking a little less ROM.
2014-04-27 16:55:27 +01:00
Damien George 2c0842b3c5 py: Change the way function arguments are compiled.
New way uses slightly less ROM and RAM, should be slightly faster, and,
most importantly, allows to catch the error "non-keyword arg following
keyword arg".

Addresses issue #466.
2014-04-27 16:46:51 +01:00
Damien George 2827d62e8b py: Implement keyword-only args.
Implements 'def f(*, a)' and 'def f(*a, b)', but not default
keyword-only args, eg 'def f(*, a=1)'.

Partially addresses issue #524.
2014-04-27 15:50:52 +01:00
Damien George 36cbd0db7e Merge branch 'master' of github.com:micropython/micropython 2014-04-26 22:24:45 +01:00
Damien George 32bef315be py, gc: Only zero out the extra bytes at the end of the heap chunk.
This is a small optimisation to zero out only the additional bytes that
the caller did not ask for.
2014-04-26 22:23:42 +01:00
Paul Sokolovsky 27f5bdd6d4 py: "read" & "write" are so common that make them core.
Few other strings move to core, but make depend on "io" module.
2014-04-26 21:15:56 +03:00
Paul Sokolovsky 100cd36a0e objstringio: Compile only if MICROPY_ENABLE_MOD_IO defined. 2014-04-26 20:59:39 +03:00
Paul Sokolovsky cb9dc086a3 modio: Implement io.StringIO class. 2014-04-26 20:26:14 +03:00