def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
python类apps()的实例源码
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def setup():
DB_FILE = NAME + '.db'
with open(DB_FILE, 'w'):
pass # wipe the database
settings.configure(
DEBUG=True,
DATABASES={
DEFAULT_DB_ALIAS: {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': DB_FILE}},
LOGGING={'version': 1,
'disable_existing_loggers': False,
'formatters': {
'debug': {
'format': '%(asctime)s[%(levelname)s]'
'%(name)s.%(funcName)s(): %(message)s',
'datefmt': '%Y-%m-%d %H:%M:%S'}},
'handlers': {
'console': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'debug'}},
'root': {
'handlers': ['console'],
'level': 'WARN'},
'loggers': {
"django.db": {"level": "WARN"}}})
app_config = AppConfig(NAME, sys.modules['__main__'])
apps.populate([app_config])
django.setup()
original_new_func = ModelBase.__new__
@staticmethod
def patched_new(cls, name, bases, attrs):
if 'Meta' not in attrs:
class Meta:
app_label = NAME
attrs['Meta'] = Meta
return original_new_func(cls, name, bases, attrs)
ModelBase.__new__ = patched_new
def setup():
DB_FILE = NAME + '.db'
with open(DB_FILE, 'w'):
pass # wipe the database
settings.configure(
DEBUG=True,
DATABASES={
DEFAULT_DB_ALIAS: {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': DB_FILE}},
LOGGING={'version': 1,
'disable_existing_loggers': False,
'formatters': {
'debug': {
'format': '%(asctime)s[%(levelname)s]'
'%(name)s.%(funcName)s(): %(message)s',
'datefmt': '%Y-%m-%d %H:%M:%S'}},
'handlers': {
'console': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'debug'}},
'root': {
'handlers': ['console'],
'level': 'WARN'},
'loggers': {
"django.db": {"level": "WARN"}}})
app_config = AppConfig(NAME, sys.modules['__main__'])
apps.populate([app_config])
django.setup()
original_new_func = ModelBase.__new__
@staticmethod
def patched_new(cls, name, bases, attrs):
if 'Meta' not in attrs:
class Meta:
app_label = NAME
attrs['Meta'] = Meta
return original_new_func(cls, name, bases, attrs)
ModelBase.__new__ = patched_new
def setup():
DB_FILE = NAME + '.db'
with open(DB_FILE, 'w'):
pass # wipe the database
settings.configure(
DEBUG=True,
DATABASES={
DEFAULT_DB_ALIAS: {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': DB_FILE}},
LOGGING={'version': 1,
'disable_existing_loggers': False,
'formatters': {
'debug': {
'format': '%(asctime)s[%(levelname)s]'
'%(name)s.%(funcName)s(): %(message)s',
'datefmt': '%Y-%m-%d %H:%M:%S'}},
'handlers': {
'console': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'debug'}},
'root': {
'handlers': ['console'],
'level': 'WARN'},
'loggers': {
"django.db": {"level": "WARN"}}})
app_config = AppConfig(NAME, sys.modules['__main__'])
apps.populate([app_config])
django.setup()
original_new_func = ModelBase.__new__
@staticmethod
def patched_new(cls, name, bases, attrs):
if 'Meta' not in attrs:
class Meta:
app_label = NAME
attrs['Meta'] = Meta
return original_new_func(cls, name, bases, attrs)
ModelBase.__new__ = patched_new
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def handle(self, *app_labels, **options):
from django.apps import apps
try:
app_configs = [apps.get_app_config(app_label) for app_label in app_labels]
except (LookupError, ImportError) as e:
raise CommandError("%s. Are you sure your INSTALLED_APPS setting is correct?" % e)
output = []
for app_config in app_configs:
app_output = self.handle_app_config(app_config, **options)
if app_output:
output.append(app_output)
return '\n'.join(output)
def get_commands():
"""
Returns a dictionary mapping command names to their callback applications.
This works by looking for a management.commands package in django.core, and
in each installed application -- if a commands package exists, all commands
in that package are registered.
Core commands are always included. If a settings module has been
specified, user-defined commands will also be included.
The dictionary is in the format {command_name: app_name}. Key-value
pairs from this dictionary can then be used in calls to
load_command_class(app_name, command_name)
If a specific version of a command must be loaded (e.g., with the
startapp command), the instantiated module can be placed in the
dictionary in place of the application name.
The dictionary is cached on the first call and reused on subsequent
calls.
"""
commands = {name: 'django.core' for name in find_commands(upath(__path__[0]))}
if not settings.configured:
return commands
for app_config in reversed(list(apps.get_app_configs())):
path = os.path.join(app_config.path, 'management')
commands.update({name: app_config.name for name in find_commands(path)})
return commands
def setup():
"""
Configure Django enough to use the ORM.
"""
cfg = config.parser(section='web_portal')
# INSTALLED_APPS doesn't seem necessary so long as you are only accessing
# existing tables.
#
# Setting charset to latin1 is a disgusting kludge, but without
# this MySQL 5.6 (and, proably, later) gets tetchy about ASN.1 DER
# stored in BLOB columns not being well-formed UTF8 (sic). If you
# know of a better solution, tell us.
settings.configure(
DATABASES={
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': cfg.get('sql-database'),
'USER': cfg.get('sql-username'),
'PASSWORD': cfg.get('sql-password'),
'OPTIONS': {
'charset': 'latin1',
}
}
},
MIDDLEWARE_CLASSES = (),
DOWNLOAD_DIRECTORY = cfg.get('download-directory', '/var/tmp'),
)
if django.VERSION >= (1, 7):
from django.apps import apps
apps.populate(settings.INSTALLED_APPS)
def setup():
"""
Configure Django enough to use the ORM.
"""
cfg = config.parser(section='web_portal')
# INSTALLED_APPS doesn't seem necessary so long as you are only accessing
# existing tables.
#
# Setting charset to latin1 is a disgusting kludge, but without
# this MySQL 5.6 (and, proably, later) gets tetchy about ASN.1 DER
# stored in BLOB columns not being well-formed UTF8 (sic). If you
# know of a better solution, tell us.
settings.configure(
DATABASES={
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': cfg.get('sql-database'),
'USER': cfg.get('sql-username'),
'PASSWORD': cfg.get('sql-password'),
'OPTIONS': {
'charset': 'latin1',
}
}
},
MIDDLEWARE_CLASSES = (),
DOWNLOAD_DIRECTORY = cfg.get('download-directory', '/var/tmp'),
)
if django.VERSION >= (1, 7):
from django.apps import apps
apps.populate(settings.INSTALLED_APPS)
