PEP 489: Improve markup.
This commit is contained in:
Berker Peksag
parent
b6eac8846e
commit
0751f33dab
202
pep-0489.txt
202
pep-0489.txt
|
|
@ -191,138 +191,136 @@ are left out, and C code is presented with a concise Python-like syntax.
|
|||
The framework that calls the importers is explained in PEP 451
|
||||
[#pep-0451-loading]_.
|
||||
|
||||
::
|
||||
importlib/_bootstrap.py::
|
||||
|
||||
importlib/_bootstrap.py:
|
||||
class BuiltinImporter:
|
||||
def create_module(self, spec):
|
||||
module = _imp.create_builtin(spec)
|
||||
|
||||
class BuiltinImporter:
|
||||
def create_module(self, spec):
|
||||
module = _imp.create_builtin(spec)
|
||||
def exec_module(self, module):
|
||||
_imp.exec_dynamic(module)
|
||||
|
||||
def exec_module(self, module):
|
||||
_imp.exec_dynamic(module)
|
||||
def load_module(self, name):
|
||||
# use a backwards compatibility shim
|
||||
_load_module_shim(self, name)
|
||||
|
||||
def load_module(self, name):
|
||||
# use a backwards compatibility shim
|
||||
_load_module_shim(self, name)
|
||||
importlib/_bootstrap_external.py::
|
||||
|
||||
importlib/_bootstrap_external.py:
|
||||
class ExtensionFileLoader:
|
||||
def create_module(self, spec):
|
||||
module = _imp.create_dynamic(spec)
|
||||
|
||||
class ExtensionFileLoader:
|
||||
def create_module(self, spec):
|
||||
module = _imp.create_dynamic(spec)
|
||||
def exec_module(self, module):
|
||||
_imp.exec_dynamic(module)
|
||||
|
||||
def exec_module(self, module):
|
||||
_imp.exec_dynamic(module)
|
||||
def load_module(self, name):
|
||||
# use a backwards compatibility shim
|
||||
_load_module_shim(self, name)
|
||||
|
||||
def load_module(self, name):
|
||||
# use a backwards compatibility shim
|
||||
_load_module_shim(self, name)
|
||||
Python/import.c (the _imp module)::
|
||||
|
||||
Python/import.c (the _imp module):
|
||||
def create_dynamic(spec):
|
||||
name = spec.name
|
||||
path = spec.origin
|
||||
|
||||
def create_dynamic(spec):
|
||||
name = spec.name
|
||||
path = spec.origin
|
||||
# Find an already loaded module that used single-phase init.
|
||||
# For multi-phase initialization, mod is NULL, so a new module
|
||||
# is always created.
|
||||
mod = _PyImport_FindExtensionObject(name, name)
|
||||
if mod:
|
||||
return mod
|
||||
|
||||
# Find an already loaded module that used single-phase init.
|
||||
# For multi-phase initialization, mod is NULL, so a new module
|
||||
# is always created.
|
||||
mod = _PyImport_FindExtensionObject(name, name)
|
||||
if mod:
|
||||
return mod
|
||||
return _PyImport_LoadDynamicModuleWithSpec(spec)
|
||||
|
||||
return _PyImport_LoadDynamicModuleWithSpec(spec)
|
||||
def exec_dynamic(module):
|
||||
if not isinstance(module, types.ModuleType):
|
||||
# non-modules are skipped -- PyModule_GetDef fails on them
|
||||
return
|
||||
|
||||
def exec_dynamic(module):
|
||||
if not isinstance(module, types.ModuleType):
|
||||
# non-modules are skipped -- PyModule_GetDef fails on them
|
||||
return
|
||||
def = PyModule_GetDef(module)
|
||||
state = PyModule_GetState(module)
|
||||
if state is NULL:
|
||||
PyModule_ExecDef(module, def)
|
||||
|
||||
def = PyModule_GetDef(module)
|
||||
state = PyModule_GetState(module)
|
||||
if state is NULL:
|
||||
PyModule_ExecDef(module, def)
|
||||
def create_builtin(spec):
|
||||
name = spec.name
|
||||
|
||||
def create_builtin(spec):
|
||||
name = spec.name
|
||||
# Find an already loaded module that used single-phase init.
|
||||
# For multi-phase initialization, mod is NULL, so a new module
|
||||
# is always created.
|
||||
mod = _PyImport_FindExtensionObject(name, name)
|
||||
if mod:
|
||||
return mod
|
||||
|
||||
# Find an already loaded module that used single-phase init.
|
||||
# For multi-phase initialization, mod is NULL, so a new module
|
||||
# is always created.
|
||||
mod = _PyImport_FindExtensionObject(name, name)
|
||||
if mod:
|
||||
return mod
|
||||
for initname, initfunc in PyImport_Inittab:
|
||||
if name == initname:
|
||||
m = initfunc()
|
||||
if isinstance(m, PyModuleDef):
|
||||
def = m
|
||||
return PyModule_FromDefAndSpec(def, spec)
|
||||
else:
|
||||
# fall back to single-phase initialization
|
||||
module = m
|
||||
_PyImport_FixupExtensionObject(module, name, name)
|
||||
return module
|
||||
|
||||
for initname, initfunc in PyImport_Inittab:
|
||||
if name == initname:
|
||||
m = initfunc()
|
||||
if isinstance(m, PyModuleDef):
|
||||
def = m
|
||||
return PyModule_FromDefAndSpec(def, spec)
|
||||
else:
|
||||
# fall back to single-phase initialization
|
||||
module = m
|
||||
_PyImport_FixupExtensionObject(module, name, name)
|
||||
return module
|
||||
Python/importdl.c::
|
||||
|
||||
Python/importdl.c:
|
||||
def _PyImport_LoadDynamicModuleWithSpec(spec):
|
||||
path = spec.origin
|
||||
package, dot, name = spec.name.rpartition('.')
|
||||
|
||||
def _PyImport_LoadDynamicModuleWithSpec(spec):
|
||||
path = spec.origin
|
||||
package, dot, name = spec.name.rpartition('.')
|
||||
# see the "Non-ASCII module names" section for export_hook_name
|
||||
hook_name = export_hook_name(name)
|
||||
|
||||
# see the "Non-ASCII module names" section for export_hook_name
|
||||
hook_name = export_hook_name(name)
|
||||
# call platform-specific function for loading exported function
|
||||
# from shared library
|
||||
exportfunc = _find_shared_funcptr(hook_name, path)
|
||||
|
||||
# call platform-specific function for loading exported function
|
||||
# from shared library
|
||||
exportfunc = _find_shared_funcptr(hook_name, path)
|
||||
m = exportfunc()
|
||||
if isinstance(m, PyModuleDef):
|
||||
def = m
|
||||
return PyModule_FromDefAndSpec(def, spec)
|
||||
|
||||
m = exportfunc()
|
||||
if isinstance(m, PyModuleDef):
|
||||
def = m
|
||||
return PyModule_FromDefAndSpec(def, spec)
|
||||
module = m
|
||||
|
||||
module = m
|
||||
# fall back to single-phase initialization
|
||||
....
|
||||
|
||||
# fall back to single-phase initialization
|
||||
....
|
||||
Objects/moduleobject.c::
|
||||
|
||||
Objects/moduleobject.c:
|
||||
def PyModule_FromDefAndSpec(def, spec):
|
||||
name = spec.name
|
||||
create = None
|
||||
for slot, value in def.m_slots:
|
||||
if slot == Py_mod_create:
|
||||
create = value
|
||||
if create:
|
||||
m = create(spec, def)
|
||||
else:
|
||||
m = PyModule_New(name)
|
||||
|
||||
def PyModule_FromDefAndSpec(def, spec):
|
||||
name = spec.name
|
||||
create = None
|
||||
for slot, value in def.m_slots:
|
||||
if slot == Py_mod_create:
|
||||
create = value
|
||||
if create:
|
||||
m = create(spec, def)
|
||||
else:
|
||||
m = PyModule_New(name)
|
||||
if isinstance(m, types.ModuleType):
|
||||
m.md_state = None
|
||||
m.md_def = def
|
||||
|
||||
if isinstance(m, types.ModuleType):
|
||||
m.md_state = None
|
||||
m.md_def = def
|
||||
if def.m_methods:
|
||||
PyModule_AddFunctions(m, def.m_methods)
|
||||
if def.m_doc:
|
||||
PyModule_SetDocString(m, def.m_doc)
|
||||
|
||||
if def.m_methods:
|
||||
PyModule_AddFunctions(m, def.m_methods)
|
||||
if def.m_doc:
|
||||
PyModule_SetDocString(m, def.m_doc)
|
||||
def PyModule_ExecDef(module, def):
|
||||
if isinstance(module, types.module_type):
|
||||
if module.md_state is NULL:
|
||||
# allocate a block of zeroed-out memory
|
||||
module.md_state = _alloc(module.md_size)
|
||||
|
||||
def PyModule_ExecDef(module, def):
|
||||
if isinstance(module, types.module_type):
|
||||
if module.md_state is NULL:
|
||||
# allocate a block of zeroed-out memory
|
||||
module.md_state = _alloc(module.md_size)
|
||||
if def.m_slots is NULL:
|
||||
return
|
||||
|
||||
if def.m_slots is NULL:
|
||||
return
|
||||
|
||||
for slot, value in def.m_slots:
|
||||
if slot == Py_mod_exec:
|
||||
value(module)
|
||||
for slot, value in def.m_slots:
|
||||
if slot == Py_mod_exec:
|
||||
value(module)
|
||||
|
||||
|
||||
Module Creation Phase
|
||||
|
|
|
|||
Loading…
Reference in New Issue