diff options
Diffstat (limited to 'Python/import.c')
| -rw-r--r-- | Python/import.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/Python/import.c b/Python/import.c index f33f9a1..a65614c 100644 --- a/Python/import.c +++ b/Python/import.c @@ -86,6 +86,11 @@ extern long PyOS_GetLastModificationTime(); /* In getmtime.c */ /* New way to come up with the magic number: (YEAR-1995), MONTH, DAY */ #define MAGIC (50428 | ((long)'\r'<<16) | ((long)'\n'<<24)) +/* Magic word as global; note that _PyImport_Init() can change the + value of this global to accomodate for alterations of how the + compiler works which are enabled by command line switches. */ +static long pyc_magic = MAGIC; + /* See _PyImport_FixupExtension() below */ static PyObject *extensions = NULL; @@ -135,6 +140,13 @@ _PyImport_Init() filetab->suffix = ".pyo"; } } + + if (Py_UnicodeFlag) { + /* Fix the pyc_magic so that byte compiled code created + using the all-Unicode method doesn't interfere with + code created in normal operation mode. */ + pyc_magic = MAGIC + 1; + } } void @@ -366,7 +378,7 @@ PyImport_Cleanup() long PyImport_GetMagicNumber() { - return MAGIC; + return pyc_magic; } @@ -572,7 +584,7 @@ check_compiled_module(pathname, mtime, cpathname) if (fp == NULL) return NULL; magic = PyMarshal_ReadLongFromFile(fp); - if (magic != MAGIC) { + if (magic != pyc_magic) { if (Py_VerboseFlag) PySys_WriteStderr("# %s has bad magic\n", cpathname); fclose(fp); @@ -627,7 +639,7 @@ load_compiled_module(name, cpathname, fp) PyObject *m; magic = PyMarshal_ReadLongFromFile(fp); - if (magic != MAGIC) { + if (magic != pyc_magic) { PyErr_Format(PyExc_ImportError, "Bad magic number in %.200s", cpathname); return NULL; @@ -685,7 +697,7 @@ write_compiled_module(co, cpathname, mtime) "# can't create %s\n", cpathname); return; } - PyMarshal_WriteLongToFile(MAGIC, fp); + PyMarshal_WriteLongToFile(pyc_magic, fp); /* First write a 0 for mtime */ PyMarshal_WriteLongToFile(0L, fp); PyMarshal_WriteObjectToFile((PyObject *)co, fp); @@ -1953,10 +1965,10 @@ imp_get_magic(self, args) if (!PyArg_ParseTuple(args, ":get_magic")) return NULL; - buf[0] = (char) ((MAGIC >> 0) & 0xff); - buf[1] = (char) ((MAGIC >> 8) & 0xff); - buf[2] = (char) ((MAGIC >> 16) & 0xff); - buf[3] = (char) ((MAGIC >> 24) & 0xff); + buf[0] = (char) ((pyc_magic >> 0) & 0xff); + buf[1] = (char) ((pyc_magic >> 8) & 0xff); + buf[2] = (char) ((pyc_magic >> 16) & 0xff); + buf[3] = (char) ((pyc_magic >> 24) & 0xff); return PyString_FromStringAndSize(buf, 4); } |