Merge https://github.com/micropython/micropython

py/builtin.c

@@ -36,6 +36,8 @@
 #include "runtime0.h"
 #include "runtime.h"
 #include "builtin.h"
+#include "stream.h"
+#include "pfenv.h"
 
 #if MICROPY_PY_BUILTINS_FLOAT
 #include <math.h>
@@ -424,13 +426,36 @@ STATIC mp_obj_t mp_builtin_print(uint n_args, const mp_obj_t *args, mp_map_t *kw
     if (end_elem != NULL && end_elem->value != mp_const_none) {
         end_data = mp_obj_str_get_data(end_elem->value, &end_len);
     }
+    #if MICROPY_PY_IO
+    mp_obj_t stream_obj = &mp_sys_stdout_obj;
+    mp_map_elem_t *file_elem = mp_map_lookup(kwargs, MP_OBJ_NEW_QSTR(MP_QSTR_file), MP_MAP_LOOKUP);
+    if (file_elem != NULL && file_elem->value != mp_const_none) {
+        stream_obj = file_elem->value;
+    }
+
+    pfenv_t pfenv;
+    pfenv.data = stream_obj;
+    pfenv.print_strn = (void (*)(void *, const char *, unsigned int))mp_stream_write;
+    #endif
     for (int i = 0; i < n_args; i++) {
         if (i > 0) {
+            #if MICROPY_PY_IO
+            mp_stream_write(stream_obj, sep_data, sep_len);
+            #else
             printf("%.*s", sep_len, sep_data);
+            #endif
         }
+        #if MICROPY_PY_IO
+        mp_obj_print_helper((void (*)(void *env, const char *fmt, ...))pfenv_printf, &pfenv, args[i], PRINT_STR);
+        #else
         mp_obj_print(args[i], PRINT_STR);
+        #endif
     }
+    #if MICROPY_PY_IO
+    mp_stream_write(stream_obj, end_data, end_len);
+    #else
     printf("%.*s", end_len, end_data);
+    #endif
     return mp_const_none;
 }
 

py/builtin.h

@@ -81,5 +81,10 @@ extern const mp_obj_module_t mp_module_struct;
 extern const mp_obj_module_t mp_module_sys;
 extern const mp_obj_module_t mp_module_gc;
 
+struct _dummy_t;
+extern struct _dummy_t mp_sys_stdin_obj;
+extern struct _dummy_t mp_sys_stdout_obj;
+extern struct _dummy_t mp_sys_stderr_obj;
+
 // extmod modules
 extern const mp_obj_module_t mp_module_uctypes;

py/modsys.c

@@ -44,9 +44,6 @@
 // only addresses.
 struct _dummy_t;
 extern struct _dummy_t mp_sys_exit_obj;
-extern struct _dummy_t mp_sys_stdin_obj;
-extern struct _dummy_t mp_sys_stdout_obj;
-extern struct _dummy_t mp_sys_stderr_obj;
 
 extern mp_obj_int_t mp_maxsize_obj;
 

py/pfenv.h

@@ -49,3 +49,6 @@ int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int
 #if MICROPY_PY_BUILTINS_FLOAT
 int pfenv_print_float(const pfenv_t *pfenv, mp_float_t f, char fmt, int flags, char fill, int width, int prec);
 #endif
+
+//int pfenv_vprintf(const pfenv_t *pfenv, const char *fmt, va_list args);
+int pfenv_printf(const pfenv_t *pfenv, const char *fmt, ...);

py/pfenv_printf.c

+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "mpconfig.h"
+#include "misc.h"
+#include "qstr.h"
+#include "obj.h"
+#include "pfenv.h"
+
+#if MICROPY_PY_BUILTINS_FLOAT
+#include "formatfloat.h"
+#endif
+
+int pfenv_vprintf(const pfenv_t *pfenv, const char *fmt, va_list args) {
+    int chrs = 0;
+    for (;;) {
+        {
+            const char *f = fmt;
+            while (*f != '\0' && *f != '%') {
+                ++f; // XXX UTF8 advance char
+            }
+            if (f > fmt) {
+                pfenv->print_strn(pfenv->data, fmt, f - fmt);
+                chrs += f - fmt;
+                fmt = f;
+            }
+        }
+
+        if (*fmt == '\0') {
+            break;
+        }
+
+        // move past % character
+        ++fmt;
+
+        // parse flags, if they exist
+        int flags = 0;
+        char fill = ' ';
+        while (*fmt != '\0') {
+            if (*fmt == '-') flags |= PF_FLAG_LEFT_ADJUST;
+            else if (*fmt == '+') flags |= PF_FLAG_SHOW_SIGN;
+            else if (*fmt == ' ') flags |= PF_FLAG_SPACE_SIGN;
+            else if (*fmt == '!') flags |= PF_FLAG_NO_TRAILZ;
+            else if (*fmt == '0') {
+                flags |= PF_FLAG_PAD_AFTER_SIGN;
+                fill = '0';
+            } else break;
+            ++fmt;
+        }
+
+        // parse width, if it exists
+        int width = 0;
+        for (; '0' <= *fmt && *fmt <= '9'; ++fmt) {
+            width = width * 10 + *fmt - '0';
+        }
+
+        // parse precision, if it exists
+        int prec = -1;
+        if (*fmt == '.') {
+            ++fmt;
+            if (*fmt == '*') {
+                ++fmt;
+                prec = va_arg(args, int);
+            } else {
+                prec = 0;
+                for (; '0' <= *fmt && *fmt <= '9'; ++fmt) {
+                    prec = prec * 10 + *fmt - '0';
+                }
+            }
+            if (prec < 0) {
+                prec = 0;
+            }
+        }
+
+        // parse long specifiers (current not used)
+        //bool long_arg = false;
+        if (*fmt == 'l') {
+            ++fmt;
+            //long_arg = true;
+        }
+
+        if (*fmt == '\0') {
+            break;
+        }
+
+        switch (*fmt) {
+            case 'b':
+                if (va_arg(args, int)) {
+                    chrs += pfenv_print_strn(pfenv, "true", 4, flags, fill, width);
+                } else {
+                    chrs += pfenv_print_strn(pfenv, "false", 5, flags, fill, width);
+                }
+                break;
+            case 'c':
+            {
+                char str = va_arg(args, int);
+                chrs += pfenv_print_strn(pfenv, &str, 1, flags, fill, width);
+                break;
+            }
+            case 's':
+            {
+                const char *str = va_arg(args, const char*);
+                if (str) {
+                    if (prec < 0) {
+                        prec = strlen(str);
+                    }
+                    chrs += pfenv_print_strn(pfenv, str, prec, flags, fill, width);
+                } else {
+                    chrs += pfenv_print_strn(pfenv, "(null)", 6, flags, fill, width);
+                }
+                break;
+            }
+            case 'u':
+                chrs += pfenv_print_int(pfenv, va_arg(args, int), 0, 10, 'a', flags, fill, width);
+                break;
+            case 'd':
+                chrs += pfenv_print_int(pfenv, va_arg(args, int), 1, 10, 'a', flags, fill, width);
+                break;
+            case 'x':
+            case 'p': // ?
+                chrs += pfenv_print_int(pfenv, va_arg(args, int), 0, 16, 'a', flags, fill, width);
+                break;
+            case 'X':
+            case 'P': // ?
+                chrs += pfenv_print_int(pfenv, va_arg(args, int), 0, 16, 'A', flags, fill, width);
+                break;
+#if MICROPY_PY_BUILTINS_FLOAT
+            case 'e':
+            case 'E':
+            case 'f':
+            case 'F':
+            case 'g':
+            case 'G':
+            {
+#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT
+                mp_float_t f = va_arg(args, double);
+                chrs += pfenv_print_float(pfenv, f, *fmt, flags, fill, width, prec);
+#elif MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE
+                // Currently pfenv_print_float uses snprintf, but snprintf
+                // itself may be implemented in terms of pfenv_vprintf() for
+                // some ports. So, for extra caution, this case is handled
+                // with assert below. Note that currently ports which
+                // use MICROPY_FLOAT_IMPL_DOUBLE, don't call pfenv_vprintf()
+                // with float format specifier at all.
+                // TODO: resolve this completely
+                assert(0);
+//#error Calling pfenv_print_float with double not supported from within printf
+#else
+#error Unknown MICROPY FLOAT IMPL
+#endif
+                break;
+            }
+#endif
+            default:
+                pfenv->print_strn(pfenv->data, fmt, 1);
+                chrs += 1;
+                break;
+        }
+        ++fmt;
+    }
+    return chrs;
+}
+
+int pfenv_printf(const pfenv_t *pfenv, const char *fmt, ...) {
+    va_list ap;
+    va_start(ap, fmt);
+    int ret = pfenv_vprintf(pfenv, fmt, ap);
+    va_end(ap);
+    return ret;
+}

py/py.mk

@@ -102,6 +102,7 @@ PY_O_BASENAME = \
 	repl.o \
 	smallint.o \
 	pfenv.o \
+	pfenv_printf.o \
 	../extmod/moductypes.o
 
 # prepend the build destination prefix to the py object files

py/qstrdefs.h

@@ -413,6 +413,7 @@ Q(TextIOWrapper)
 Q(StringIO)
 Q(BytesIO)
 Q(getvalue)
+Q(file)
 #endif
 
 #if MICROPY_PY_GC

py/stream.c

@@ -67,6 +67,9 @@ STATIC mp_obj_t stream_read(uint n_args, const mp_obj_t *args) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "Operation not supported"));
     }
 
+    // What to do if sz < -1?  Python docs don't specify this case.
+    // CPython does a readall, but here we silently let negatives through,
+    // and they will cause a MemoryError.
     mp_int_t sz;
     if (n_args == 1 || ((sz = mp_obj_get_int(args[1])) == -1)) {
         return stream_readall(args[0]);
@@ -74,7 +77,90 @@ STATIC mp_obj_t stream_read(uint n_args, const mp_obj_t *args) {
 
     #if MICROPY_PY_BUILTINS_STR_UNICODE
     if (!o->type->stream_p->is_bytes) {
-        mp_not_implemented("Reading from unicode text streams by character count");
+        // We need to read sz number of unicode characters.  Because we don't have any
+        // buffering, and because the stream API can only read bytes, we must read here
+        // in units of bytes and must never over read.  If we want sz chars, then reading
+        // sz bytes will never over-read, so we follow this approach, in a loop to keep
+        // reading until we have exactly enough chars.  This will be 1 read for text
+        // with ASCII-only chars, and about 2 reads for text with a couple of non-ASCII
+        // chars.  For text with lots of non-ASCII chars, it'll be pretty inefficient
+        // in time and memory.
+
+        vstr_t vstr;
+        vstr_init(&vstr, sz);
+        mp_uint_t more_bytes = sz;
+        mp_uint_t last_buf_offset = 0;
+        while (more_bytes > 0) {
+            char *p = vstr_add_len(&vstr, more_bytes);
+            if (p == NULL) {
+                nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_MemoryError, "out of memory"));
+            }
+            int error;
+            mp_int_t out_sz = o->type->stream_p->read(o, p, more_bytes, &error);
+            if (out_sz == -1) {
+                vstr_cut_tail_bytes(&vstr, more_bytes);
+                if (is_nonblocking_error(error)) {
+                    // With non-blocking streams, we read as much as we can.
+                    // If we read nothing, return None, just like read().
+                    // Otherwise, return data read so far.
+                    // TODO what if we have read only half a non-ASCII char?
+                    if (vstr.len == 0) {
+                        vstr_clear(&vstr);
+                        return mp_const_none;
+                    }
+                    break;
+                }
+                nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "[Errno %d]", error));
+            }
+
+            if (out_sz == 0) {
+                // Finish reading.
+                // TODO what if we have read only half a non-ASCII char?
+                vstr_cut_tail_bytes(&vstr, more_bytes);
+                break;
+            }
+
+            // count chars from bytes just read
+            for (mp_uint_t off = last_buf_offset;;) {
+                byte b = vstr.buf[off];
+                int n;
+                if (!UTF8_IS_NONASCII(b)) {
+                    // 1-byte ASCII char
+                    n = 1;
+                } else if ((b & 0xe0) == 0xc0) {
+                    // 2-byte char
+                    n = 2;
+                } else if ((b & 0xf0) == 0xe0) {
+                    // 3-byte char
+                    n = 3;
+                } else if ((b & 0xf8) == 0xf0) {
+                    // 4-byte char
+                    n = 4;
+                } else {
+                    // TODO
+                    n = 5;
+                }
+                if (off + n <= vstr.len) {
+                    // got a whole char in n bytes
+                    off += n;
+                    sz -= 1;
+                    last_buf_offset = off;
+                    if (off >= vstr.len) {
+                        more_bytes = sz;
+                        break;
+                    }
+                } else {
+                    // didn't get a whole char, so work out how many extra bytes are needed for
+                    // this partial char, plus bytes for additional chars that we want
+                    more_bytes = (off + n - vstr.len) + (sz - 1);
+                    break;
+                }
+            }
+        }
+
+        mp_obj_t ret = mp_obj_new_str_of_type(&mp_type_str, (byte*)vstr.buf, vstr.len);
+        vstr_clear(&vstr);
+        return ret;
     }
     #endif
 

stmhal/file.c

@@ -41,7 +41,7 @@ extern const mp_obj_type_t mp_type_fileio;
 extern const mp_obj_type_t mp_type_textio;
 
 // this table converts from FRESULT to POSIX errno
-STATIC const byte fresult_to_errno_table[] = {
+const byte fresult_to_errno_table[20] = {
     [FR_OK] = 0,
     [FR_DISK_ERR] = EIO,
     [FR_INT_ERR] = EIO,
@@ -95,6 +95,13 @@ STATIC mp_int_t file_obj_write(mp_obj_t self_in, const void *buf, mp_uint_t size
     return sz_out;
 }
 
+STATIC mp_obj_t file_obj_flush(mp_obj_t self_in) {
+    pyb_file_obj_t *self = self_in;
+    f_sync(&self->fp);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(file_obj_flush_obj, file_obj_flush);
+
 mp_obj_t file_obj_close(mp_obj_t self_in) {
     pyb_file_obj_t *self = self_in;
     f_close(&self->fp);
@@ -218,6 +225,7 @@ STATIC const mp_map_elem_t rawfile_locals_dict_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_readline), (mp_obj_t)&mp_stream_unbuffered_readline_obj},
     { MP_OBJ_NEW_QSTR(MP_QSTR_readlines), (mp_obj_t)&mp_stream_unbuffered_readlines_obj},
     { MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&mp_stream_write_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_flush), (mp_obj_t)&file_obj_flush_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&file_obj_close_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_seek), (mp_obj_t)&file_obj_seek_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_tell), (mp_obj_t)&file_obj_tell_obj },

stmhal/file.h

@@ -24,4 +24,6 @@
  * THE SOFTWARE.
  */
 
+const byte fresult_to_errno_table[20];
+
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_open_obj);

stmhal/main.c

@@ -43,7 +43,6 @@
 #include "stackctrl.h"
 #include "gc.h"
 #include "gccollect.h"
-#include "pybstdio.h"
 #include "readline.h"
 #include "pyexec.h"
 #include "i2c.h"
@@ -64,6 +63,7 @@
 #include "servo.h"
 #include "dac.h"
 #include "pybwlan.h"
+#include "pybstdio.h"
 
 void SystemClock_Config(void);
 
@@ -311,12 +311,10 @@ soft_reset:
             MP_OBJ_NEW_SMALL_INT(PYB_UART_6),
             MP_OBJ_NEW_SMALL_INT(115200),
         };
-        pyb_uart_global_debug = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type,
-                                                       MP_ARRAY_SIZE(args),
-                                                       0, args);
+        pyb_stdio_uart = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args);
     }
 #else
-    pyb_uart_global_debug = NULL;
+    pyb_stdio_uart = NULL;
 #endif
 
     // Micro Python init

stmhal/modos.c

@@ -32,10 +32,12 @@
 #include "misc.h"
 #include "qstr.h"
 #include "obj.h"
+#include "objtuple.h"
 #include "systick.h"
 #include "rng.h"
 #include "storage.h"
 #include "ff.h"
+#include "file.h"
 #include "portmodules.h"
 
 #if _USE_LFN
@@ -107,8 +109,7 @@ STATIC mp_obj_t os_listdir(uint n_args, const mp_obj_t *args) {
 
     return dir_list;
 }
-
-MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(os_listdir_obj, 0, 1, os_listdir);
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(os_listdir_obj, 0, 1, os_listdir);
 
 STATIC mp_obj_t os_mkdir(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
@@ -123,8 +124,7 @@ STATIC mp_obj_t os_mkdir(mp_obj_t path_o) {
             nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error creating directory '%s'", path));
     }
 }
-
-MP_DEFINE_CONST_FUN_OBJ_1(os_mkdir_obj, os_mkdir);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_mkdir_obj, os_mkdir);
 
 STATIC mp_obj_t os_remove(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
@@ -137,8 +137,7 @@ STATIC mp_obj_t os_remove(mp_obj_t path_o) {
             nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error removing file '%s'", path));
     }
 }
-
-MP_DEFINE_CONST_FUN_OBJ_1(os_remove_obj, os_remove);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_remove_obj, os_remove);
 
 STATIC mp_obj_t os_rmdir(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
@@ -151,15 +150,57 @@ STATIC mp_obj_t os_rmdir(mp_obj_t path_o) {
             nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "Error removing directory '%s'", path));
     }
 }
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_rmdir_obj, os_rmdir);
+
+STATIC mp_obj_t os_stat(mp_obj_t path_in) {
+    const char *path = mp_obj_str_get_str(path_in);
+
+    FILINFO fno;
+#if _USE_LFN
+    fno.lfname = NULL;
+    fno.lfsize = 0;
+#endif
 
-MP_DEFINE_CONST_FUN_OBJ_1(os_rmdir_obj, os_rmdir);
+    FRESULT res = f_stat(path, &fno);
+    if (res != FR_OK) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(fresult_to_errno_table[res])));
+    }
+
+    mp_obj_tuple_t *t = mp_obj_new_tuple(10, NULL);
+    mp_int_t mode = 0;
+    if (fno.fattrib & AM_DIR) {
+        mode |= 0x4000; // stat.S_IFDIR
+    } else {
+        mode |= 0x8000; // stat.S_IFREG
+    }
+    mp_int_t seconds = mod_time_seconds_since_2000(
+        1980 + ((fno.fdate >> 9) & 0x7f),
+        (fno.fdate >> 5) & 0x0f,
+        fno.fdate & 0x1f,
+        (fno.ftime >> 11) & 0x1f,
+        (fno.ftime >> 5) & 0x3f,
+        2 * (fno.ftime & 0x1f)
+    );
+    t->items[0] = MP_OBJ_NEW_SMALL_INT(mode); // st_mode
+    t->items[1] = MP_OBJ_NEW_SMALL_INT(0); // st_ino
+    t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // st_dev
+    t->items[3] = MP_OBJ_NEW_SMALL_INT(0); // st_nlink
+    t->items[4] = MP_OBJ_NEW_SMALL_INT(0); // st_uid
+    t->items[5] = MP_OBJ_NEW_SMALL_INT(0); // st_gid
+    t->items[6] = MP_OBJ_NEW_SMALL_INT(fno.fsize); // st_size
+    t->items[7] = MP_OBJ_NEW_SMALL_INT(seconds); // st_atime
+    t->items[8] = MP_OBJ_NEW_SMALL_INT(seconds); // st_mtime
+    t->items[9] = MP_OBJ_NEW_SMALL_INT(seconds); // st_ctime
+
+    return t;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_stat_obj, os_stat);
 
 STATIC mp_obj_t os_sync(void) {
     storage_flush();
     return mp_const_none;
 }
-
-MP_DEFINE_CONST_FUN_OBJ_0(os_sync_obj, os_sync);
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(os_sync_obj, os_sync);
 
 STATIC mp_obj_t os_urandom(mp_obj_t num) {
     mp_int_t n = mp_obj_get_int(num);
@@ -170,8 +211,7 @@ STATIC mp_obj_t os_urandom(mp_obj_t num) {
     }
     return mp_obj_str_builder_end(o);
 }
-
-MP_DEFINE_CONST_FUN_OBJ_1(os_urandom_obj, os_urandom);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_urandom_obj, os_urandom);
 
 STATIC const mp_map_elem_t os_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_os) },
@@ -180,6 +220,7 @@ STATIC const mp_map_elem_t os_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_mkdir), (mp_obj_t)&os_mkdir_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_remove), (mp_obj_t)&os_remove_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_rmdir), (mp_obj_t)&os_rmdir_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_stat), (mp_obj_t)&os_stat_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_unlink), (mp_obj_t)&os_remove_obj }, // unlink aliases to remove
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_sync), (mp_obj_t)&os_sync_obj },

stmhal/modpyb.c

@@ -37,7 +37,6 @@
 #include "gc.h"
 #include "gccollect.h"
 #include "systick.h"
-#include "pybstdio.h"
 #include "pyexec.h"
 #include "led.h"
 #include "pin.h"
@@ -57,6 +56,7 @@
 #include "dac.h"
 #include "lcd.h"
 #include "usb.h"
+#include "pybstdio.h"
 #include "ff.h"
 #include "portmodules.h"
 
@@ -307,16 +307,16 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_have_cdc_obj, pyb_have_cdc);
 /// Get or set the UART object that the REPL is repeated on.
 STATIC mp_obj_t pyb_repl_uart(uint n_args, const mp_obj_t *args) {
     if (n_args == 0) {
-        if (pyb_uart_global_debug == NULL) {
+        if (pyb_stdio_uart == NULL) {
             return mp_const_none;
         } else {
-            return pyb_uart_global_debug;
+            return pyb_stdio_uart;
         }
     } else {
         if (args[0] == mp_const_none) {
-            pyb_uart_global_debug = NULL;
+            pyb_stdio_uart = NULL;
         } else if (mp_obj_get_type(args[0]) == &pyb_uart_type) {
-            pyb_uart_global_debug = args[0];
+            pyb_stdio_uart = args[0];
         } else {
             nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "need a UART object"));
         }

stmhal/modtime.c

@@ -34,22 +34,36 @@
 #include "portmodules.h"