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|
# Run the tests in Programs/_testembed.c (tests for the CPython embedding APIs)
from test import support
import unittest
from collections import namedtuple
import contextlib
import json
import os
import re
import shutil
import subprocess
import sys
import tempfile
import textwrap
MS_WINDOWS = (os.name == 'nt')
MACOS = (sys.platform == 'darwin')
PYMEM_ALLOCATOR_NOT_SET = 0
PYMEM_ALLOCATOR_DEBUG = 2
PYMEM_ALLOCATOR_MALLOC = 3
# _PyCoreConfig_InitCompatConfig()
API_COMPAT = 1
# _PyCoreConfig_InitPythonConfig()
API_PYTHON = 2
# _PyCoreConfig_InitIsolatedConfig()
API_ISOLATED = 3
def debug_build(program):
program = os.path.basename(program)
name = os.path.splitext(program)[0]
return name.endswith("_d")
def remove_python_envvars():
env = dict(os.environ)
# Remove PYTHON* environment variables to get deterministic environment
for key in list(env):
if key.startswith('PYTHON'):
del env[key]
return env
class EmbeddingTestsMixin:
def setUp(self):
here = os.path.abspath(__file__)
basepath = os.path.dirname(os.path.dirname(os.path.dirname(here)))
exename = "_testembed"
if MS_WINDOWS:
ext = ("_d" if debug_build(sys.executable) else "") + ".exe"
exename += ext
exepath = os.path.dirname(sys.executable)
else:
exepath = os.path.join(basepath, "Programs")
self.test_exe = exe = os.path.join(exepath, exename)
if not os.path.exists(exe):
self.skipTest("%r doesn't exist" % exe)
# This is needed otherwise we get a fatal error:
# "Py_Initialize: Unable to get the locale encoding
# LookupError: no codec search functions registered: can't find encoding"
self.oldcwd = os.getcwd()
os.chdir(basepath)
def tearDown(self):
os.chdir(self.oldcwd)
def run_embedded_interpreter(self, *args, env=None,
timeout=None, returncode=0, input=None,
cwd=None):
"""Runs a test in the embedded interpreter"""
cmd = [self.test_exe]
cmd.extend(args)
if env is not None and MS_WINDOWS:
# Windows requires at least the SYSTEMROOT environment variable to
# start Python.
env = env.copy()
env['SYSTEMROOT'] = os.environ['SYSTEMROOT']
p = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
env=env,
cwd=cwd)
try:
(out, err) = p.communicate(input=input, timeout=timeout)
except:
p.terminate()
p.wait()
raise
if p.returncode != returncode and support.verbose:
print(f"--- {cmd} failed ---")
print(f"stdout:\n{out}")
print(f"stderr:\n{err}")
print(f"------")
self.assertEqual(p.returncode, returncode,
"bad returncode %d, stderr is %r" %
(p.returncode, err))
return out, err
def run_repeated_init_and_subinterpreters(self):
out, err = self.run_embedded_interpreter("test_repeated_init_and_subinterpreters")
self.assertEqual(err, "")
# The output from _testembed looks like this:
# --- Pass 0 ---
# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
# interp 1 <0x1d4f690>, thread state <0x1d35350>: id(modules) = 139650431165784
# interp 2 <0x1d5a690>, thread state <0x1d99ed0>: id(modules) = 139650413140368
# interp 3 <0x1d4f690>, thread state <0x1dc3340>: id(modules) = 139650412862200
# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
# --- Pass 1 ---
# ...
interp_pat = (r"^interp (\d+) <(0x[\dA-F]+)>, "
r"thread state <(0x[\dA-F]+)>: "
r"id\(modules\) = ([\d]+)$")
Interp = namedtuple("Interp", "id interp tstate modules")
numloops = 0
current_run = []
for line in out.splitlines():
if line == "--- Pass {} ---".format(numloops):
self.assertEqual(len(current_run), 0)
if support.verbose > 1:
print(line)
numloops += 1
continue
self.assertLess(len(current_run), 5)
match = re.match(interp_pat, line)
if match is None:
self.assertRegex(line, interp_pat)
# Parse the line from the loop. The first line is the main
# interpreter and the 3 afterward are subinterpreters.
interp = Interp(*match.groups())
if support.verbose > 1:
print(interp)
self.assertTrue(interp.interp)
self.assertTrue(interp.tstate)
self.assertTrue(interp.modules)
current_run.append(interp)
# The last line in the loop should be the same as the first.
if len(current_run) == 5:
main = current_run[0]
self.assertEqual(interp, main)
yield current_run
current_run = []
class EmbeddingTests(EmbeddingTestsMixin, unittest.TestCase):
def test_subinterps_main(self):
for run in self.run_repeated_init_and_subinterpreters():
main = run[0]
self.assertEqual(main.id, '0')
def test_subinterps_different_ids(self):
for run in self.run_repeated_init_and_subinterpreters():
main, *subs, _ = run
mainid = int(main.id)
for i, sub in enumerate(subs):
self.assertEqual(sub.id, str(mainid + i + 1))
def test_subinterps_distinct_state(self):
for run in self.run_repeated_init_and_subinterpreters():
main, *subs, _ = run
if '0x0' in main:
# XXX Fix on Windows (and other platforms): something
# is going on with the pointers in Programs/_testembed.c.
# interp.interp is 0x0 and interp.modules is the same
# between interpreters.
raise unittest.SkipTest('platform prints pointers as 0x0')
for sub in subs:
# A new subinterpreter may have the same
# PyInterpreterState pointer as a previous one if
# the earlier one has already been destroyed. So
# we compare with the main interpreter. The same
# applies to tstate.
self.assertNotEqual(sub.interp, main.interp)
self.assertNotEqual(sub.tstate, main.tstate)
self.assertNotEqual(sub.modules, main.modules)
def test_forced_io_encoding(self):
# Checks forced configuration of embedded interpreter IO streams
env = dict(os.environ, PYTHONIOENCODING="utf-8:surrogateescape")
out, err = self.run_embedded_interpreter("test_forced_io_encoding", env=env)
if support.verbose > 1:
print()
print(out)
print(err)
expected_stream_encoding = "utf-8"
expected_errors = "surrogateescape"
expected_output = '\n'.join([
"--- Use defaults ---",
"Expected encoding: default",
"Expected errors: default",
"stdin: {in_encoding}:{errors}",
"stdout: {out_encoding}:{errors}",
"stderr: {out_encoding}:backslashreplace",
"--- Set errors only ---",
"Expected encoding: default",
"Expected errors: ignore",
"stdin: {in_encoding}:ignore",
"stdout: {out_encoding}:ignore",
"stderr: {out_encoding}:backslashreplace",
"--- Set encoding only ---",
"Expected encoding: iso8859-1",
"Expected errors: default",
"stdin: iso8859-1:{errors}",
"stdout: iso8859-1:{errors}",
"stderr: iso8859-1:backslashreplace",
"--- Set encoding and errors ---",
"Expected encoding: iso8859-1",
"Expected errors: replace",
"stdin: iso8859-1:replace",
"stdout: iso8859-1:replace",
"stderr: iso8859-1:backslashreplace"])
expected_output = expected_output.format(
in_encoding=expected_stream_encoding,
out_encoding=expected_stream_encoding,
errors=expected_errors)
# This is useful if we ever trip over odd platform behaviour
self.maxDiff = None
self.assertEqual(out.strip(), expected_output)
def test_pre_initialization_api(self):
"""
Checks some key parts of the C-API that need to work before the runtine
is initialized (via Py_Initialize()).
"""
env = dict(os.environ, PYTHONPATH=os.pathsep.join(sys.path))
out, err = self.run_embedded_interpreter("test_pre_initialization_api", env=env)
if MS_WINDOWS:
expected_path = self.test_exe
else:
expected_path = os.path.join(os.getcwd(), "spam")
expected_output = f"sys.executable: {expected_path}\n"
self.assertIn(expected_output, out)
self.assertEqual(err, '')
def test_pre_initialization_sys_options(self):
"""
Checks that sys.warnoptions and sys._xoptions can be set before the
runtime is initialized (otherwise they won't be effective).
"""
env = remove_python_envvars()
env['PYTHONPATH'] = os.pathsep.join(sys.path)
out, err = self.run_embedded_interpreter(
"test_pre_initialization_sys_options", env=env)
expected_output = (
"sys.warnoptions: ['once', 'module', 'default']\n"
"sys._xoptions: {'not_an_option': '1', 'also_not_an_option': '2'}\n"
"warnings.filters[:3]: ['default', 'module', 'once']\n"
)
self.assertIn(expected_output, out)
self.assertEqual(err, '')
def test_bpo20891(self):
"""
bpo-20891: Calling PyGILState_Ensure in a non-Python thread before
calling PyEval_InitThreads() must not crash. PyGILState_Ensure() must
call PyEval_InitThreads() for us in this case.
"""
out, err = self.run_embedded_interpreter("test_bpo20891")
self.assertEqual(out, '')
self.assertEqual(err, '')
def test_initialize_twice(self):
"""
bpo-33932: Calling Py_Initialize() twice should do nothing (and not
crash!).
"""
out, err = self.run_embedded_interpreter("test_initialize_twice")
self.assertEqual(out, '')
self.assertEqual(err, '')
def test_initialize_pymain(self):
"""
bpo-34008: Calling Py_Main() after Py_Initialize() must not fail.
"""
out, err = self.run_embedded_interpreter("test_initialize_pymain")
self.assertEqual(out.rstrip(), "Py_Main() after Py_Initialize: sys.argv=['-c', 'arg2']")
self.assertEqual(err, '')
def test_run_main(self):
out, err = self.run_embedded_interpreter("test_run_main")
self.assertEqual(out.rstrip(), "Py_RunMain(): sys.argv=['-c', 'arg2']")
self.assertEqual(err, '')
class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
maxDiff = 4096
UTF8_MODE_ERRORS = ('surrogatepass' if MS_WINDOWS else 'surrogateescape')
# Marker to read the default configuration: get_default_config()
GET_DEFAULT_CONFIG = object()
# Marker to ignore a configuration parameter
IGNORE_CONFIG = object()
PRE_CONFIG_COMPAT = {
'_config_init': API_COMPAT,
'allocator': PYMEM_ALLOCATOR_NOT_SET,
'parse_argv': 0,
'configure_locale': 1,
'coerce_c_locale': 0,
'coerce_c_locale_warn': 0,
'utf8_mode': 0,
}
if MS_WINDOWS:
PRE_CONFIG_COMPAT.update({
'legacy_windows_fs_encoding': 0,
})
PRE_CONFIG_PYTHON = dict(PRE_CONFIG_COMPAT,
_config_init=API_PYTHON,
parse_argv=1,
coerce_c_locale=GET_DEFAULT_CONFIG,
utf8_mode=GET_DEFAULT_CONFIG,
)
PRE_CONFIG_ISOLATED = dict(PRE_CONFIG_COMPAT,
_config_init=API_ISOLATED,
configure_locale=0,
isolated=1,
use_environment=0,
utf8_mode=0,
dev_mode=0,
coerce_c_locale=0,
)
COPY_PRE_CONFIG = [
'dev_mode',
'isolated',
'use_environment',
]
CONFIG_COMPAT = {
'_config_init': API_COMPAT,
'isolated': 0,
'use_environment': 1,
'dev_mode': 0,
'install_signal_handlers': 1,
'use_hash_seed': 0,
'hash_seed': 0,
'faulthandler': 0,
'tracemalloc': 0,
'import_time': 0,
'show_ref_count': 0,
'dump_refs': 0,
'malloc_stats': 0,
'filesystem_encoding': GET_DEFAULT_CONFIG,
'filesystem_errors': GET_DEFAULT_CONFIG,
'pycache_prefix': None,
'program_name': GET_DEFAULT_CONFIG,
'parse_argv': 0,
'argv': [""],
'xoptions': [],
'warnoptions': [],
'pythonpath_env': None,
'home': None,
'executable': GET_DEFAULT_CONFIG,
'base_executable': GET_DEFAULT_CONFIG,
'prefix': GET_DEFAULT_CONFIG,
'base_prefix': GET_DEFAULT_CONFIG,
'exec_prefix': GET_DEFAULT_CONFIG,
'base_exec_prefix': GET_DEFAULT_CONFIG,
'module_search_paths': GET_DEFAULT_CONFIG,
'site_import': 1,
'bytes_warning': 0,
'inspect': 0,
'interactive': 0,
'optimization_level': 0,
'parser_debug': 0,
'write_bytecode': 1,
'verbose': 0,
'quiet': 0,
'user_site_directory': 1,
'configure_c_stdio': 0,
'buffered_stdio': 1,
'stdio_encoding': GET_DEFAULT_CONFIG,
'stdio_errors': GET_DEFAULT_CONFIG,
'skip_source_first_line': 0,
'run_command': None,
'run_module': None,
'run_filename': None,
'_install_importlib': 1,
'check_hash_pycs_mode': 'default',
'pathconfig_warnings': 1,
'_init_main': 1,
}
if MS_WINDOWS:
CONFIG_COMPAT.update({
'legacy_windows_stdio': 0,
})
CONFIG_PYTHON = dict(CONFIG_COMPAT,
_config_init=API_PYTHON,
configure_c_stdio=1,
parse_argv=1,
)
CONFIG_ISOLATED = dict(CONFIG_COMPAT,
_config_init=API_ISOLATED,
isolated=1,
use_environment=0,
user_site_directory=0,
dev_mode=0,
install_signal_handlers=0,
use_hash_seed=0,
faulthandler=0,
tracemalloc=0,
pathconfig_warnings=0,
)
if MS_WINDOWS:
CONFIG_ISOLATED['legacy_windows_stdio'] = 0
# global config
DEFAULT_GLOBAL_CONFIG = {
'Py_HasFileSystemDefaultEncoding': 0,
'Py_HashRandomizationFlag': 1,
'_Py_HasFileSystemDefaultEncodeErrors': 0,
}
COPY_GLOBAL_PRE_CONFIG = [
('Py_UTF8Mode', 'utf8_mode'),
]
COPY_GLOBAL_CONFIG = [
# Copy core config to global config for expected values
# True means that the core config value is inverted (0 => 1 and 1 => 0)
('Py_BytesWarningFlag', 'bytes_warning'),
('Py_DebugFlag', 'parser_debug'),
('Py_DontWriteBytecodeFlag', 'write_bytecode', True),
('Py_FileSystemDefaultEncodeErrors', 'filesystem_errors'),
('Py_FileSystemDefaultEncoding', 'filesystem_encoding'),
('Py_FrozenFlag', 'pathconfig_warnings', True),
('Py_IgnoreEnvironmentFlag', 'use_environment', True),
('Py_InspectFlag', 'inspect'),
('Py_InteractiveFlag', 'interactive'),
('Py_IsolatedFlag', 'isolated'),
('Py_NoSiteFlag', 'site_import', True),
('Py_NoUserSiteDirectory', 'user_site_directory', True),
('Py_OptimizeFlag', 'optimization_level'),
('Py_QuietFlag', 'quiet'),
('Py_UnbufferedStdioFlag', 'buffered_stdio', True),
('Py_VerboseFlag', 'verbose'),
]
if MS_WINDOWS:
COPY_GLOBAL_PRE_CONFIG.extend((
('Py_LegacyWindowsFSEncodingFlag', 'legacy_windows_fs_encoding'),
))
COPY_GLOBAL_CONFIG.extend((
('Py_LegacyWindowsStdioFlag', 'legacy_windows_stdio'),
))
EXPECTED_CONFIG = None
@classmethod
def tearDownClass(cls):
# clear cache
cls.EXPECTED_CONFIG = None
def main_xoptions(self, xoptions_list):
xoptions = {}
for opt in xoptions_list:
if '=' in opt:
key, value = opt.split('=', 1)
xoptions[key] = value
else:
xoptions[opt] = True
return xoptions
def _get_expected_config_impl(self):
env = remove_python_envvars()
code = textwrap.dedent('''
import json
import sys
import _testinternalcapi
configs = _testinternalcapi.get_configs()
data = json.dumps(configs)
data = data.encode('utf-8')
sys.stdout.buffer.write(data)
sys.stdout.buffer.flush()
''')
# Use -S to not import the site module: get the proper configuration
# when test_embed is run from a venv (bpo-35313)
args = [sys.executable, '-S', '-c', code]
proc = subprocess.run(args, env=env,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
if proc.returncode:
raise Exception(f"failed to get the default config: "
f"stdout={proc.stdout!r} stderr={proc.stderr!r}")
stdout = proc.stdout.decode('utf-8')
# ignore stderr
try:
return json.loads(stdout)
except json.JSONDecodeError:
self.fail(f"fail to decode stdout: {stdout!r}")
def _get_expected_config(self):
cls = InitConfigTests
if cls.EXPECTED_CONFIG is None:
cls.EXPECTED_CONFIG = self._get_expected_config_impl()
# get a copy
configs = {}
for config_key, config_value in cls.EXPECTED_CONFIG.items():
config = {}
for key, value in config_value.items():
if isinstance(value, list):
value = value.copy()
config[key] = value
configs[config_key] = config
return configs
def get_expected_config(self, expected_preconfig, expected, env, api,
modify_path_cb=None):
cls = self.__class__
configs = self._get_expected_config()
pre_config = configs['pre_config']
for key, value in expected_preconfig.items():
if value is self.GET_DEFAULT_CONFIG:
expected_preconfig[key] = pre_config[key]
if not expected_preconfig['configure_locale'] or api == API_COMPAT:
# there is no easy way to get the locale encoding before
# setlocale(LC_CTYPE, "") is called: don't test encodings
for key in ('filesystem_encoding', 'filesystem_errors',
'stdio_encoding', 'stdio_errors'):
expected[key] = self.IGNORE_CONFIG
if not expected_preconfig['configure_locale']:
# UTF-8 Mode depends on the locale. There is no easy way
# to guess if UTF-8 Mode will be enabled or not if the locale
# is not configured.
expected_preconfig['utf8_mode'] = self.IGNORE_CONFIG
if expected_preconfig['utf8_mode'] == 1:
if expected['filesystem_encoding'] is self.GET_DEFAULT_CONFIG:
expected['filesystem_encoding'] = 'utf-8'
if expected['filesystem_errors'] is self.GET_DEFAULT_CONFIG:
expected['filesystem_errors'] = self.UTF8_MODE_ERRORS
if expected['stdio_encoding'] is self.GET_DEFAULT_CONFIG:
expected['stdio_encoding'] = 'utf-8'
if expected['stdio_errors'] is self.GET_DEFAULT_CONFIG:
expected['stdio_errors'] = 'surrogateescape'
if sys.platform == 'win32':
default_executable = self.test_exe
elif expected['program_name'] is not self.GET_DEFAULT_CONFIG:
default_executable = os.path.abspath(expected['program_name'])
else:
default_executable = os.path.join(os.getcwd(), '_testembed')
if expected['executable'] is self.GET_DEFAULT_CONFIG:
expected['executable'] = default_executable
if expected['base_executable'] is self.GET_DEFAULT_CONFIG:
expected['base_executable'] = default_executable
if expected['program_name'] is self.GET_DEFAULT_CONFIG:
expected['program_name'] = './_testembed'
config = configs['config']
for key, value in expected.items():
if value is self.GET_DEFAULT_CONFIG:
expected[key] = config[key]
pythonpath_env = expected['pythonpath_env']
if pythonpath_env is not None:
paths = pythonpath_env.split(os.path.pathsep)
expected['module_search_paths'] = [*paths, *expected['module_search_paths']]
if modify_path_cb is not None:
expected['module_search_paths'] = expected['module_search_paths'].copy()
modify_path_cb(expected['module_search_paths'])
for key in self.COPY_PRE_CONFIG:
if key not in expected_preconfig:
expected_preconfig[key] = expected[key]
def check_pre_config(self, configs, expected):
pre_config = dict(configs['pre_config'])
for key, value in list(expected.items()):
if value is self.IGNORE_CONFIG:
del pre_config[key]
del expected[key]
self.assertEqual(pre_config, expected)
def check_config(self, configs, expected):
config = dict(configs['config'])
for key, value in list(expected.items()):
if value is self.IGNORE_CONFIG:
del config[key]
del expected[key]
self.assertEqual(config, expected)
def check_global_config(self, configs):
pre_config = configs['pre_config']
config = configs['config']
expected = dict(self.DEFAULT_GLOBAL_CONFIG)
for item in self.COPY_GLOBAL_CONFIG:
if len(item) == 3:
global_key, core_key, opposite = item
expected[global_key] = 0 if config[core_key] else 1
else:
global_key, core_key = item
expected[global_key] = config[core_key]
for item in self.COPY_GLOBAL_PRE_CONFIG:
if len(item) == 3:
global_key, core_key, opposite = item
expected[global_key] = 0 if pre_config[core_key] else 1
else:
global_key, core_key = item
expected[global_key] = pre_config[core_key]
self.assertEqual(configs['global_config'], expected)
def check_all_configs(self, testname, expected_config=None,
expected_preconfig=None, modify_path_cb=None,
stderr=None, *, api, preconfig_api=None,
env=None, ignore_stderr=False, cwd=None):
new_env = remove_python_envvars()
if env is not None:
new_env.update(env)
env = new_env
if preconfig_api is None:
preconfig_api = api
if preconfig_api == API_ISOLATED:
default_preconfig = self.PRE_CONFIG_ISOLATED
elif preconfig_api == API_PYTHON:
default_preconfig = self.PRE_CONFIG_PYTHON
else:
default_preconfig = self.PRE_CONFIG_COMPAT
if expected_preconfig is None:
expected_preconfig = {}
expected_preconfig = dict(default_preconfig, **expected_preconfig)
if expected_config is None:
expected_config = {}
if api == API_PYTHON:
default_config = self.CONFIG_PYTHON
elif api == API_ISOLATED:
default_config = self.CONFIG_ISOLATED
else:
default_config = self.CONFIG_COMPAT
expected_config = dict(default_config, **expected_config)
self.get_expected_config(expected_preconfig,
expected_config, env,
api, modify_path_cb)
out, err = self.run_embedded_interpreter(testname,
env=env, cwd=cwd)
if stderr is None and not expected_config['verbose']:
stderr = ""
if stderr is not None and not ignore_stderr:
self.assertEqual(err.rstrip(), stderr)
try:
configs = json.loads(out)
except json.JSONDecodeError:
self.fail(f"fail to decode stdout: {out!r}")
self.check_pre_config(configs, expected_preconfig)
self.check_config(configs, expected_config)
self.check_global_config(configs)
def test_init_default_config(self):
self.check_all_configs("test_init_initialize_config", api=API_COMPAT)
def test_preinit_compat_config(self):
self.check_all_configs("test_preinit_compat_config", api=API_COMPAT)
def test_init_compat_config(self):
self.check_all_configs("test_init_compat_config", api=API_COMPAT)
def test_init_global_config(self):
preconfig = {
'utf8_mode': 1,
}
config = {
'program_name': './globalvar',
'site_import': 0,
'bytes_warning': 1,
'warnoptions': ['default::BytesWarning'],
'inspect': 1,
'interactive': 1,
'optimization_level': 2,
'write_bytecode': 0,
'verbose': 1,
'quiet': 1,
'buffered_stdio': 0,
'user_site_directory': 0,
'pathconfig_warnings': 0,
}
self.check_all_configs("test_init_global_config", config, preconfig,
api=API_COMPAT)
def test_init_from_config(self):
preconfig = {
'allocator': PYMEM_ALLOCATOR_MALLOC,
'utf8_mode': 1,
}
config = {
'install_signal_handlers': 0,
'use_hash_seed': 1,
'hash_seed': 123,
'tracemalloc': 2,
'import_time': 1,
'show_ref_count': 1,
'malloc_stats': 1,
'stdio_encoding': 'iso8859-1',
'stdio_errors': 'replace',
'pycache_prefix': 'conf_pycache_prefix',
'program_name': './conf_program_name',
'argv': ['-c', 'arg2', ],
'parse_argv': 1,
'xoptions': [
'config_xoption1=3',
'config_xoption2=',
'config_xoption3',
'cmdline_xoption',
],
'warnoptions': [
'cmdline_warnoption',
'default::BytesWarning',
'config_warnoption',
],
'run_command': 'pass\n',
'site_import': 0,
'bytes_warning': 1,
'inspect': 1,
'interactive': 1,
'optimization_level': 2,
'write_bytecode': 0,
'verbose': 1,
'quiet': 1,
'configure_c_stdio': 1,
'buffered_stdio': 0,
'user_site_directory': 0,
'faulthandler': 1,
'check_hash_pycs_mode': 'always',
'pathconfig_warnings': 0,
}
self.check_all_configs("test_init_from_config", config, preconfig,
api=API_COMPAT)
def test_init_compat_env(self):
preconfig = {
'allocator': PYMEM_ALLOCATOR_MALLOC,
}
config = {
'use_hash_seed': 1,
'hash_seed': 42,
'tracemalloc': 2,
'import_time': 1,
'malloc_stats': 1,
'inspect': 1,
'optimization_level': 2,
'pythonpath_env': '/my/path',
'pycache_prefix': 'env_pycache_prefix',
'write_bytecode': 0,
'verbose': 1,
'buffered_stdio': 0,
'stdio_encoding': 'iso8859-1',
'stdio_errors': 'replace',
'user_site_directory': 0,
'faulthandler': 1,
'warnoptions': ['EnvVar'],
}
self.check_all_configs("test_init_compat_env", config, preconfig,
api=API_COMPAT)
def test_init_python_env(self):
preconfig = {
'allocator': PYMEM_ALLOCATOR_MALLOC,
'utf8_mode': 1,
}
config = {
'use_hash_seed': 1,
'hash_seed': 42,
'tracemalloc': 2,
'import_time': 1,
'malloc_stats': 1,
'inspect': 1,
'optimization_level': 2,
'pythonpath_env': '/my/path',
'pycache_prefix': 'env_pycache_prefix',
'write_bytecode': 0,
'verbose': 1,
'buffered_stdio': 0,
'stdio_encoding': 'iso8859-1',
'stdio_errors': 'replace',
'user_site_directory': 0,
'faulthandler': 1,
'warnoptions': ['EnvVar'],
}
self.check_all_configs("test_init_python_env", config, preconfig,
api=API_PYTHON)
def test_init_env_dev_mode(self):
preconfig = dict(allocator=PYMEM_ALLOCATOR_DEBUG)
config = dict(dev_mode=1,
faulthandler=1,
warnoptions=['default'])
self.check_all_configs("test_init_env_dev_mode", config, preconfig,
api=API_COMPAT)
def test_init_env_dev_mode_alloc(self):
preconfig = dict(allocator=PYMEM_ALLOCATOR_MALLOC)
config = dict(dev_mode=1,
faulthandler=1,
warnoptions=['default'])
self.check_all_configs("test_init_env_dev_mode_alloc", config, preconfig,
api=API_COMPAT)
def test_init_dev_mode(self):
preconfig = {
'allocator': PYMEM_ALLOCATOR_DEBUG,
}
config = {
'faulthandler': 1,
'dev_mode': 1,
'warnoptions': ['default'],
}
self.check_all_configs("test_init_dev_mode", config, preconfig,
api=API_PYTHON)
def test_preinit_parse_argv(self):
# Pre-initialize implicitly using argv: make sure that -X dev
# is used to configure the allocation in preinitialization
preconfig = {
'allocator': PYMEM_ALLOCATOR_DEBUG,
}
config = {
'argv': ['script.py'],
'run_filename': os.path.abspath('script.py'),
'dev_mode': 1,
'faulthandler': 1,
'warnoptions': ['default'],
'xoptions': ['dev'],
}
self.check_all_configs("test_preinit_parse_argv", config, preconfig,
api=API_PYTHON)
def test_preinit_dont_parse_argv(self):
# -X dev must be ignored by isolated preconfiguration
preconfig = {
'isolated': 0,
}
config = {
'argv': ["python3", "-E", "-I",
"-X", "dev", "-X", "utf8", "script.py"],
'isolated': 0,
}
self.check_all_configs("test_preinit_dont_parse_argv", config, preconfig,
api=API_ISOLATED)
def test_init_isolated_flag(self):
config = {
'isolated': 1,
'use_environment': 0,
'user_site_directory': 0,
}
self.check_all_configs("test_init_isolated_flag", config, api=API_PYTHON)
def test_preinit_isolated1(self):
# _PyPreConfig.isolated=1, _PyCoreConfig.isolated not set
config = {
'isolated': 1,
'use_environment': 0,
'user_site_directory': 0,
}
self.check_all_configs("test_preinit_isolated1", config, api=API_COMPAT)
def test_preinit_isolated2(self):
# _PyPreConfig.isolated=0, _PyCoreConfig.isolated=1
config = {
'isolated': 1,
'use_environment': 0,
'user_site_directory': 0,
}
self.check_all_configs("test_preinit_isolated2", config, api=API_COMPAT)
def test_preinit_isolated_config(self):
self.check_all_configs("test_preinit_isolated_config", api=API_ISOLATED)
def test_init_isolated_config(self):
self.check_all_configs("test_init_isolated_config", api=API_ISOLATED)
def test_preinit_python_config(self):
self.check_all_configs("test_preinit_python_config", api=API_PYTHON)
def test_init_python_config(self):
self.check_all_configs("test_init_python_config", api=API_PYTHON)
def test_init_dont_configure_locale(self):
# _PyPreConfig.configure_locale=0
preconfig = {
'configure_locale': 0,
'coerce_c_locale': 0,
}
self.check_all_configs("test_init_dont_configure_locale", {}, preconfig,
api=API_PYTHON)
def test_init_read_set(self):
config = {
'program_name': './init_read_set',
'executable': 'my_executable',
}
def modify_path(path):
path.insert(1, "test_path_insert1")
path.append("test_path_append")
self.check_all_configs("test_init_read_set", config,
api=API_PYTHON,
modify_path_cb=modify_path)
def test_init_sys_add(self):
config = {
'faulthandler': 1,
'xoptions': [
'config_xoption',
'cmdline_xoption',
'sysadd_xoption',
'faulthandler',
],
'warnoptions': [
'ignore:::cmdline_warnoption',
'ignore:::sysadd_warnoption',
'ignore:::config_warnoption',
],
}
self.check_all_configs("test_init_sys_add", config, api=API_PYTHON)
def test_init_run_main(self):
code = ('import _testinternalcapi, json; '
'print(json.dumps(_testinternalcapi.get_configs()))')
config = {
'argv': ['-c', 'arg2'],
'program_name': './python3',
'run_command': code + '\n',
'parse_argv': 1,
}
self.check_all_configs("test_init_run_main", config, api=API_PYTHON)
def test_init_main(self):
code = ('import _testinternalcapi, json; '
'print(json.dumps(_testinternalcapi.get_configs()))')
config = {
'argv': ['-c', 'arg2'],
'program_name': './python3',
'run_command': code + '\n',
'parse_argv': 1,
'_init_main': 0,
}
self.check_all_configs("test_init_main", config,
api=API_PYTHON,
stderr="Run Python code before _Py_InitializeMain")
def test_init_parse_argv(self):
config = {
'parse_argv': 1,
'argv': ['-c', 'arg1', '-v', 'arg3'],
'program_name': './argv0',
'run_command': 'pass\n',
'use_environment': 0,
}
self.check_all_configs("test_init_parse_argv", config, api=API_PYTHON)
def test_init_dont_parse_argv(self):
pre_config = {
'parse_argv': 0,
}
config = {
'parse_argv': 0,
'argv': ['./argv0', '-E', '-c', 'pass', 'arg1', '-v', 'arg3'],
'program_name': './argv0',
}
self.check_all_configs("test_init_dont_parse_argv", config, pre_config,
api=API_PYTHON)
def default_program_name(self, config):
if MS_WINDOWS:
program_name = 'python'
executable = self.test_exe
else:
program_name = 'python3'
if MACOS:
executable = self.test_exe
else:
executable = shutil.which(program_name) or ''
config.update({
'program_name': program_name,
'base_executable': executable,
'executable': executable,
})
def test_init_setpath(self):
# Test Py_SetPath()
config = self._get_expected_config()
paths = config['config']['module_search_paths']
config = {
'module_search_paths': paths,
'prefix': '',
'base_prefix': '',
'exec_prefix': '',
'base_exec_prefix': '',
}
self.default_program_name(config)
env = {'TESTPATH': os.path.pathsep.join(paths)}
self.check_all_configs("test_init_setpath", config,
api=API_COMPAT, env=env,
ignore_stderr=True)
def test_init_setpath_config(self):
# Test Py_SetPath() with PyConfig
config = self._get_expected_config()
paths = config['config']['module_search_paths']
config = {
# set by Py_SetPath()
'module_search_paths': paths,
'prefix': '',
'base_prefix': '',
'exec_prefix': '',
'base_exec_prefix': '',
# overriden by PyConfig
'program_name': 'conf_program_name',
'base_executable': 'conf_executable',
'executable': 'conf_executable',
}
env = {'TESTPATH': os.path.pathsep.join(paths)}
self.check_all_configs("test_init_setpath_config", config,
api=API_PYTHON, env=env, ignore_stderr=True)
def module_search_paths(self, prefix=None, exec_prefix=None):
config = self._get_expected_config()
if prefix is None:
prefix = config['config']['prefix']
if exec_prefix is None:
exec_prefix = config['config']['prefix']
if MS_WINDOWS:
return config['config']['module_search_paths']
else:
ver = sys.version_info
return [
os.path.join(prefix, 'lib',
f'python{ver.major}{ver.minor}.zip'),
os.path.join(prefix, 'lib',
f'python{ver.major}.{ver.minor}'),
os.path.join(exec_prefix, 'lib',
f'python{ver.major}.{ver.minor}', 'lib-dynload'),
]
@contextlib.contextmanager
def tmpdir_with_python(self):
# Temporary directory with a copy of the Python program
with tempfile.TemporaryDirectory() as tmpdir:
# bpo-38234: On macOS and FreeBSD, the temporary directory
# can be symbolic link. For example, /tmp can be a symbolic link
# to /var/tmp. Call realpath() to resolve all symbolic links.
tmpdir = os.path.realpath(tmpdir)
if MS_WINDOWS:
# Copy pythonXY.dll (or pythonXY_d.dll)
ver = sys.version_info
dll = f'python{ver.major}{ver.minor}'
if debug_build(sys.executable):
dll += '_d'
dll += '.dll'
dll = os.path.join(os.path.dirname(self.test_exe), dll)
dll_copy = os.path.join(tmpdir, os.path.basename(dll))
shutil.copyfile(dll, dll_copy)
# Copy Python program
exec_copy = os.path.join(tmpdir, os.path.basename(self.test_exe))
shutil.copyfile(self.test_exe, exec_copy)
shutil.copystat(self.test_exe, exec_copy)
self.test_exe = exec_copy
yield tmpdir
def test_init_setpythonhome(self):
# Test Py_SetPythonHome(home) with PYTHONPATH env var
config = self._get_expected_config()
paths = config['config']['module_search_paths']
paths_str = os.path.pathsep.join(paths)
for path in paths:
if not os.path.isdir(path):
continue
if os.path.exists(os.path.join(path, 'os.py')):
home = os.path.dirname(path)
break
else:
self.fail(f"Unable to find home in {paths!r}")
prefix = exec_prefix = home
ver = sys.version_info
expected_paths = self.module_search_paths(prefix=home, exec_prefix=home)
config = {
'home': home,
'module_search_paths': expected_paths,
'prefix': prefix,
'base_prefix': prefix,
'exec_prefix': exec_prefix,
'base_exec_prefix': exec_prefix,
'pythonpath_env': paths_str,
}
self.default_program_name(config)
env = {'TESTHOME': home, 'PYTHONPATH': paths_str}
self.check_all_configs("test_init_setpythonhome", config,
api=API_COMPAT, env=env)
def copy_paths_by_env(self, config):
all_configs = self._get_expected_config()
paths = all_configs['config']['module_search_paths']
paths_str = os.path.pathsep.join(paths)
config['pythonpath_env'] = paths_str
env = {'PYTHONPATH': paths_str}
return env
@unittest.skipIf(MS_WINDOWS, 'Windows does not use pybuilddir.txt')
def test_init_pybuilddir(self):
# Test path configuration with pybuilddir.txt configuration file
with self.tmpdir_with_python() as tmpdir:
# pybuilddir.txt is a sub-directory relative to the current
# directory (tmpdir)
subdir = 'libdir'
libdir = os.path.join(tmpdir, subdir)
os.mkdir(libdir)
filename = os.path.join(tmpdir, 'pybuilddir.txt')
with open(filename, "w", encoding="utf8") as fp:
fp.write(subdir)
module_search_paths = self.module_search_paths()
module_search_paths[-1] = libdir
executable = self.test_exe
config = {
'base_executable': executable,
'executable': executable,
'module_search_paths': module_search_paths,
}
env = self.copy_paths_by_env(config)
self.check_all_configs("test_init_compat_config", config,
api=API_COMPAT, env=env,
ignore_stderr=True, cwd=tmpdir)
def test_init_pyvenv_cfg(self):
# Test path configuration with pyvenv.cfg configuration file
with self.tmpdir_with_python() as tmpdir, \
tempfile.TemporaryDirectory() as pyvenv_home:
ver = sys.version_info
if not MS_WINDOWS:
lib_dynload = os.path.join(pyvenv_home,
'lib',
f'python{ver.major}.{ver.minor}',
'lib-dynload')
os.makedirs(lib_dynload)
else:
lib_dynload = os.path.join(pyvenv_home, 'lib')
os.makedirs(lib_dynload)
# getpathp.c uses Lib\os.py as the LANDMARK
shutil.copyfile(os.__file__, os.path.join(lib_dynload, 'os.py'))
filename = os.path.join(tmpdir, 'pyvenv.cfg')
with open(filename, "w", encoding="utf8") as fp:
print("home = %s" % pyvenv_home, file=fp)
print("include-system-site-packages = false", file=fp)
paths = self.module_search_paths()
if not MS_WINDOWS:
paths[-1] = lib_dynload
else:
for index, path in enumerate(paths):
if index == 0:
paths[index] = os.path.join(tmpdir, os.path.basename(path))
else:
paths[index] = os.path.join(pyvenv_home, os.path.basename(path))
paths[-1] = pyvenv_home
executable = self.test_exe
exec_prefix = pyvenv_home
config = {
'base_exec_prefix': exec_prefix,
'exec_prefix': exec_prefix,
'base_executable': executable,
'executable': executable,
'module_search_paths': paths,
}
if MS_WINDOWS:
config['base_prefix'] = pyvenv_home
config['prefix'] = pyvenv_home
env = self.copy_paths_by_env(config)
self.check_all_configs("test_init_compat_config", config,
api=API_COMPAT, env=env,
ignore_stderr=True, cwd=tmpdir)
def test_global_pathconfig(self):
# Test C API functions getting the path configuration:
#
# - Py_GetExecPrefix()
# - Py_GetPath()
# - Py_GetPrefix()
# - Py_GetProgramFullPath()
# - Py_GetProgramName()
# - Py_GetPythonHome()
#
# The global path configuration (_Py_path_config) must be a copy
# of the path configuration of PyInterpreter.config (PyConfig).
ctypes = support.import_module('ctypes')
_testinternalcapi = support.import_module('_testinternalcapi')
def get_func(name):
func = getattr(ctypes.pythonapi, name)
func.argtypes = ()
func.restype = ctypes.c_wchar_p
return func
Py_GetPath = get_func('Py_GetPath')
Py_GetPrefix = get_func('Py_GetPrefix')
Py_GetExecPrefix = get_func('Py_GetExecPrefix')
Py_GetProgramName = get_func('Py_GetProgramName')
Py_GetProgramFullPath = get_func('Py_GetProgramFullPath')
Py_GetPythonHome = get_func('Py_GetPythonHome')
config = _testinternalcapi.get_configs()['config']
self.assertEqual(Py_GetPath().split(os.path.pathsep),
config['module_search_paths'])
self.assertEqual(Py_GetPrefix(), config['prefix'])
self.assertEqual(Py_GetExecPrefix(), config['exec_prefix'])
self.assertEqual(Py_GetProgramName(), config['program_name'])
self.assertEqual(Py_GetProgramFullPath(), config['executable'])
self.assertEqual(Py_GetPythonHome(), config['home'])
def test_init_warnoptions(self):
# lowest to highest priority
warnoptions = [
'ignore:::PyConfig_Insert0', # PyWideStringList_Insert(0)
'default', # PyConfig.dev_mode=1
'ignore:::env1', # PYTHONWARNINGS env var
'ignore:::env2', # PYTHONWARNINGS env var
'ignore:::cmdline1', # -W opt command line option
'ignore:::cmdline2', # -W opt command line option
'default::BytesWarning', # PyConfig.bytes_warnings=1
'ignore:::PySys_AddWarnOption1', # PySys_AddWarnOption()
'ignore:::PySys_AddWarnOption2', # PySys_AddWarnOption()
'ignore:::PyConfig_BeforeRead', # PyConfig.warnoptions
'ignore:::PyConfig_AfterRead'] # PyWideStringList_Append()
preconfig = dict(allocator=PYMEM_ALLOCATOR_DEBUG)
config = {
'dev_mode': 1,
'faulthandler': 1,
'bytes_warning': 1,
'warnoptions': warnoptions,
}
self.check_all_configs("test_init_warnoptions", config, preconfig,
api=API_PYTHON)
class AuditingTests(EmbeddingTestsMixin, unittest.TestCase):
def test_open_code_hook(self):
self.run_embedded_interpreter("test_open_code_hook")
def test_audit(self):
self.run_embedded_interpreter("test_audit")
def test_audit_subinterpreter(self):
self.run_embedded_interpreter("test_audit_subinterpreter")
def test_audit_run_command(self):
self.run_embedded_interpreter("test_audit_run_command",
timeout=support.SHORT_TIMEOUT,
returncode=1)
def test_audit_run_file(self):
self.run_embedded_interpreter("test_audit_run_file",
timeout=support.SHORT_TIMEOUT,
returncode=1)
def test_audit_run_interactivehook(self):
startup = os.path.join(self.oldcwd, support.TESTFN) + ".py"
with open(startup, "w", encoding="utf-8") as f:
print("import sys", file=f)
print("sys.__interactivehook__ = lambda: None", file=f)
try:
env = {**remove_python_envvars(), "PYTHONSTARTUP": startup}
self.run_embedded_interpreter("test_audit_run_interactivehook",
timeout=support.SHORT_TIMEOUT,
returncode=10, env=env)
finally:
os.unlink(startup)
def test_audit_run_startup(self):
startup = os.path.join(self.oldcwd, support.TESTFN) + ".py"
with open(startup, "w", encoding="utf-8") as f:
print("pass", file=f)
try:
env = {**remove_python_envvars(), "PYTHONSTARTUP": startup}
self.run_embedded_interpreter("test_audit_run_startup",
timeout=support.SHORT_TIMEOUT,
returncode=10, env=env)
finally:
os.unlink(startup)
def test_audit_run_stdin(self):
self.run_embedded_interpreter("test_audit_run_stdin",
timeout=support.SHORT_TIMEOUT,
returncode=1)
if __name__ == "__main__":
unittest.main()
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