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cpython/Include/coreconfig.h

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#ifndef Py_PYCORECONFIG_H
#define Py_PYCORECONFIG_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_LIMITED_API
typedef struct {
const char *prefix;
const char *msg;
int user_err;
} _PyInitError;
/* Almost all errors causing Python initialization to fail */
#ifdef _MSC_VER
/* Visual Studio 2015 doesn't implement C99 __func__ in C */
# define _Py_INIT_GET_FUNC() __FUNCTION__
#else
# define _Py_INIT_GET_FUNC() __func__
#endif
#define _Py_INIT_OK() \
(_PyInitError){.prefix = NULL, .msg = NULL, .user_err = 0}
#define _Py_INIT_ERR(MSG) \
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 0}
/* Error that can be fixed by the user like invalid input parameter.
Don't abort() the process on such error. */
#define _Py_INIT_USER_ERR(MSG) \
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 1}
#define _Py_INIT_NO_MEMORY() _Py_INIT_USER_ERR("memory allocation failed")
#define _Py_INIT_FAILED(err) \
(err.msg != NULL)
#endif /* !defined(Py_LIMITED_API) */
typedef struct {
/* Install signal handlers? Yes by default. */
int install_signal_handlers;
/* If greater than 0: use environment variables.
Set to 0 by -E command line option. If set to -1 (default), it is
set to !Py_IgnoreEnvironmentFlag. */
int use_environment;
int use_hash_seed; /* PYTHONHASHSEED=x */
unsigned long hash_seed;
const char *allocator; /* Memory allocator: PYTHONMALLOC */
int dev_mode; /* PYTHONDEVMODE, -X dev */
/* Enable faulthandler?
Set to 1 by -X faulthandler and PYTHONFAULTHANDLER. -1 means unset. */
int faulthandler;
/* Enable tracemalloc?
Set by -X tracemalloc=N and PYTHONTRACEMALLOC. -1 means unset */
int tracemalloc;
int import_time; /* PYTHONPROFILEIMPORTTIME, -X importtime */
int show_ref_count; /* -X showrefcount */
int show_alloc_count; /* -X showalloccount */
int dump_refs; /* PYTHONDUMPREFS */
int malloc_stats; /* PYTHONMALLOCSTATS */
int coerce_c_locale; /* PYTHONCOERCECLOCALE, -1 means unknown */
int coerce_c_locale_warn; /* PYTHONCOERCECLOCALE=warn */
/* Python filesystem encoding and error handler:
sys.getfilesystemencoding() and sys.getfilesystemencodeerrors().
Default encoding and error handler:
* if Py_SetStandardStreamEncoding() has been called: they have the
highest priority;
* PYTHONIOENCODING environment variable;
* The UTF-8 Mode uses UTF-8/surrogateescape;
* If Python forces the usage of the ASCII encoding (ex: C locale
or POSIX locale on FreeBSD or HP-UX), use ASCII/surrogateescape;
* locale encoding: ANSI code page on Windows, UTF-8 on Android,
LC_CTYPE locale encoding on other platforms;
* On Windows, "surrogateescape" error handler;
* "surrogateescape" error handler if the LC_CTYPE locale is "C" or "POSIX";
* "surrogateescape" error handler if the LC_CTYPE locale has been coerced
(PEP 538);
* "strict" error handler.
Supported error handlers: "strict", "surrogateescape" and
"surrogatepass". The surrogatepass error handler is only supported
if Py_DecodeLocale() and Py_EncodeLocale() use directly the UTF-8 codec;
it's only used on Windows.
initfsencoding() updates the encoding to the Python codec name.
For example, "ANSI_X3.4-1968" is replaced with "ascii".
On Windows, sys._enablelegacywindowsfsencoding() sets the
encoding/errors to mbcs/replace at runtime.
See Py_FileSystemDefaultEncoding and Py_FileSystemDefaultEncodeErrors.
*/
char *filesystem_encoding;
char *filesystem_errors;
/* Enable UTF-8 mode?
Set by -X utf8 command line option and PYTHONUTF8 environment variable.
If set to -1 (default), inherit Py_UTF8Mode value. */
int utf8_mode;
wchar_t *pycache_prefix; /* PYTHONPYCACHEPREFIX, -X pycache_prefix=PATH */
wchar_t *program_name; /* Program name, see also Py_GetProgramName() */
int argc; /* Number of command line arguments,
-1 means unset */
wchar_t **argv; /* Command line arguments */
wchar_t *program; /* argv[0] or "" */
int nxoption; /* Number of -X options */
wchar_t **xoptions; /* -X options */
int nwarnoption; /* Number of warnings options */
wchar_t **warnoptions; /* Warnings options */
/* Path configuration inputs */
wchar_t *module_search_path_env; /* PYTHONPATH environment variable */
wchar_t *home; /* PYTHONHOME environment variable,
see also Py_SetPythonHome(). */
/* Path configuration outputs */
int nmodule_search_path; /* Number of sys.path paths,
-1 means unset */
wchar_t **module_search_paths; /* sys.path paths */
wchar_t *executable; /* sys.executable */
wchar_t *prefix; /* sys.prefix */
wchar_t *base_prefix; /* sys.base_prefix */
wchar_t *exec_prefix; /* sys.exec_prefix */
wchar_t *base_exec_prefix; /* sys.base_exec_prefix */
#ifdef MS_WINDOWS
wchar_t *dll_path; /* Windows DLL path */
#endif
/* If greater than 0, enable isolated mode: sys.path contains
neither the script's directory nor the user's site-packages directory.
Set to 1 by the -I command line option. If set to -1 (default), inherit
Py_IsolatedFlag value. */
int isolated;
/* If equal to zero, disable the import of the module site and the
site-dependent manipulations of sys.path that it entails. Also disable
these manipulations if site is explicitly imported later (call
site.main() if you want them to be triggered).
Set to 0 by the -S command line option. If set to -1 (default), it is
set to !Py_NoSiteFlag. */
int site_import;
/* Bytes warnings:
* If equal to 1, issue a warning when comparing bytes or bytearray with
str or bytes with int.
* If equal or greater to 2, issue an error.
Incremented by the -b command line option. If set to -1 (default), inherit
Py_BytesWarningFlag value. */
int bytes_warning;
/* If greater than 0, enable inspect: when a script is passed as first
argument or the -c option is used, enter interactive mode after
executing the script or the command, even when sys.stdin does not appear
to be a terminal.
Incremented by the -i command line option. Set to 1 if the PYTHONINSPECT
environment variable is non-empty. If set to -1 (default), inherit
Py_InspectFlag value. */
int inspect;
/* If greater than 0: enable the interactive mode (REPL).
Incremented by the -i command line option. If set to -1 (default),
inherit Py_InteractiveFlag value. */
int interactive;
/* Optimization level.
Incremented by the -O command line option. Set by the PYTHONOPTIMIZE
environment variable. If set to -1 (default), inherit Py_OptimizeFlag
value. */
int optimization_level;
/* If greater than 0, enable the debug mode: turn on parser debugging
output (for expert only, depending on compilation options).
Incremented by the -d command line option. Set by the PYTHONDEBUG
environment variable. If set to -1 (default), inherit Py_DebugFlag
value. */
int parser_debug;
/* If equal to 0, Python won't try to write ``.pyc`` files on the
import of source modules.
Set to 0 by the -B command line option and the PYTHONDONTWRITEBYTECODE
environment variable. If set to -1 (default), it is set to
!Py_DontWriteBytecodeFlag. */
int write_bytecode;
/* If greater than 0, enable the verbose mode: print a message each time a
module is initialized, showing the place (filename or built-in module)
from which it is loaded.
If greater or equal to 2, print a message for each file that is checked
for when searching for a module. Also provides information on module
cleanup at exit.
Incremented by the -v option. Set by the PYTHONVERBOSE environment
variable. If set to -1 (default), inherit Py_VerboseFlag value. */
int verbose;
/* If greater than 0, enable the quiet mode: Don't display the copyright
and version messages even in interactive mode.
Incremented by the -q option. If set to -1 (default), inherit
Py_QuietFlag value. */
int quiet;
/* If greater than 0, don't add the user site-packages directory to
sys.path.
Set to 0 by the -s and -I command line options , and the PYTHONNOUSERSITE
environment variable. If set to -1 (default), it is set to
!Py_NoUserSiteDirectory. */
int user_site_directory;
/* If equal to 0, enable unbuffered mode: force the stdout and stderr
streams to be unbuffered.
Set to 0 by the -u option. Set by the PYTHONUNBUFFERED environment
variable.
If set to -1 (default), it is set to !Py_UnbufferedStdioFlag. */
int buffered_stdio;
/* Encoding of sys.stdin, sys.stdout and sys.stderr.
Value set from PYTHONIOENCODING environment variable and
Py_SetStandardStreamEncoding() function.
See also 'stdio_errors' attribute. */
char *stdio_encoding;
/* Error handler of sys.stdin and sys.stdout.
Value set from PYTHONIOENCODING environment variable and
Py_SetStandardStreamEncoding() function.
See also 'stdio_encoding' attribute. */
char *stdio_errors;
#ifdef MS_WINDOWS
/* If greater than 1, use the "mbcs" encoding instead of the UTF-8
encoding for the filesystem encoding.
Set to 1 if the PYTHONLEGACYWINDOWSFSENCODING environment variable is
set to a non-empty string. If set to -1 (default), inherit
Py_LegacyWindowsFSEncodingFlag value.
See PEP 529 for more details. */
int legacy_windows_fs_encoding;
/* If greater than zero, use io.FileIO instead of WindowsConsoleIO for sys
standard streams.
Set to 1 if the PYTHONLEGACYWINDOWSSTDIO environment variable is set to
a non-empty string. If set to -1 (default), inherit
Py_LegacyWindowsStdioFlag value.
See PEP 528 for more details. */
int legacy_windows_stdio;
#endif
/* --- Private fields -------- */
/* Install importlib? If set to 0, importlib is not initialized at all.
Needed by freeze_importlib. */
int _install_importlib;
/* Value of the --check-hash-based-pycs configure option. Valid values:
- "default" means the 'check_source' flag in hash-based pycs
determines invalidation
- "always" causes the interpreter to hash the source file for
invalidation regardless of value of 'check_source' bit
- "never" causes the interpreter to always assume hash-based pycs are
valid
Set by the --check-hash-based-pycs command line option.
The default value is "default".
See PEP 552 "Deterministic pycs" for more details. */
const char *_check_hash_pycs_mode;
/* If greater than 0, suppress _PyPathConfig_Calculate() warnings.
If set to -1 (default), inherit Py_FrozenFlag value. */
int _frozen;
} _PyCoreConfig;
#ifdef MS_WINDOWS
# define _PyCoreConfig_WINDOWS_INIT \
.legacy_windows_fs_encoding = -1, \
.legacy_windows_stdio = -1,
#else
# define _PyCoreConfig_WINDOWS_INIT
#endif
#define _PyCoreConfig_INIT \
(_PyCoreConfig){ \
.install_signal_handlers = 1, \
.use_environment = -1, \
.use_hash_seed = -1, \
.faulthandler = -1, \
.tracemalloc = -1, \
.coerce_c_locale = -1, \
.utf8_mode = -1, \
.argc = -1, \
.nmodule_search_path = -1, \
.isolated = -1, \
.site_import = -1, \
.bytes_warning = -1, \
.inspect = -1, \
.interactive = -1, \
.optimization_level = -1, \
.parser_debug= -1, \
.write_bytecode = -1, \
.verbose = -1, \
.quiet = -1, \
.user_site_directory = -1, \
.buffered_stdio = -1, \
_PyCoreConfig_WINDOWS_INIT \
._install_importlib = 1, \
._check_hash_pycs_mode = "default", \
._frozen = -1}
/* Note: _PyCoreConfig_INIT sets other fields to 0/NULL */
#ifndef Py_LIMITED_API
PyAPI_FUNC(_PyInitError) _PyCoreConfig_Read(_PyCoreConfig *config);
PyAPI_FUNC(void) _PyCoreConfig_Clear(_PyCoreConfig *);
PyAPI_FUNC(int) _PyCoreConfig_Copy(
_PyCoreConfig *config,
const _PyCoreConfig *config2);
PyAPI_FUNC(_PyInitError) _PyCoreConfig_InitPathConfig(_PyCoreConfig *config);
PyAPI_FUNC(_PyInitError) _PyCoreConfig_SetPathConfig(
const _PyCoreConfig *config);
PyAPI_FUNC(void) _PyCoreConfig_GetGlobalConfig(_PyCoreConfig *config);
PyAPI_FUNC(void) _PyCoreConfig_SetGlobalConfig(const _PyCoreConfig *config);
PyAPI_FUNC(const char*) _PyCoreConfig_GetEnv(
const _PyCoreConfig *config,
const char *name);
PyAPI_FUNC(int) _PyCoreConfig_GetEnvDup(
const _PyCoreConfig *config,
wchar_t **dest,
wchar_t *wname,
char *name);
/* Used by _testcapi.get_global_config() and _testcapi.get_core_config() */
PyAPI_FUNC(PyObject *) _Py_GetGlobalVariablesAsDict(void);
PyAPI_FUNC(PyObject *) _PyCoreConfig_AsDict(const _PyCoreConfig *config);
#endif
#ifdef __cplusplus
}
#endif
#endif /* !Py_PYCORECONFIG_H */
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