sanic/sanic/config.py
Angus Hollands 51611c3934 Pep8 cleanups (#429)
* PEP8 cleanups

* PEP8 cleanups (server.py)

* PEP8 cleanups (blueprints.py)

* PEP8 cleanups (config.py)

* PEP8 cleanups (cookies.py)

* PEP8 cleanups (handlers.py)

* PEP8 cleanups (request.py)

* PEP8 cleanups (response.py)

* PEP8 cleanups (router.py)

* PEP8 cleanups (sanic.py) #2

* PEP8 cleanups (server.py) #2

* PEP8 cleanups (static.py)

* PEP8 cleanups (utils.py)

* PEP8 cleanups (views.py)
Updated docstring
2017-02-14 13:10:19 -06:00

93 lines
3.7 KiB
Python

import os
import types
class Config(dict):
def __init__(self, defaults=None):
super().__init__(defaults or {})
self.LOGO = """
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▀▀▀██████▄▄▄ _______________
▄▄▄▄▄ █████████▄ / \\
▀▀▀▀█████▌ ▀▐▄ ▀▐█ | Gotta go fast! |
▀▀█████▄▄ ▀██████▄██ | _________________/
▀▄▄▄▄▄ ▀▀█▄▀█════█▀ |/
▀▀▀▄ ▀▀███ ▀ ▄▄
▄███▀▀██▄████████▄ ▄▀▀▀▀▀▀█▌
██▀▄▄▄██▀▄███▀ ▀▀████ ▄██
▄▀▀▀▄██▄▀▀▌████▒▒▒▒▒▒███ ▌▄▄▀
▌ ▐▀████▐███▒▒▒▒▒▐██▌
▀▄▄▄▄▀ ▀▀████▒▒▒▒▄██▀
▀▀█████████▀
▄▄██▀██████▀█
▄██▀ ▀▀▀ █
▄█ ▐▌
▄▄▄▄█▌ ▀█▄▄▄▄▀▀▄
▌ ▐ ▀▀▄▄▄▀
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"""
self.REQUEST_MAX_SIZE = 100000000 # 100 megababies
self.REQUEST_TIMEOUT = 60 # 60 seconds
def __getattr__(self, attr):
try:
return self[attr]
except KeyError as ke:
raise AttributeError("Config has no '{}'".format(ke.args[0]))
def __setattr__(self, attr, value):
self[attr] = value
def from_envvar(self, variable_name):
"""Load a configuration from an environment variable pointing to
a configuration file.
:param variable_name: name of the environment variable
:return: bool. ``True`` if able to load config, ``False`` otherwise.
"""
config_file = os.environ.get(variable_name)
if not config_file:
raise RuntimeError('The environment variable %r is not set and '
'thus configuration could not be loaded.' %
variable_name)
return self.from_pyfile(config_file)
def from_pyfile(self, filename):
"""Update the values in the config from a Python file.
Only the uppercase variables in that module are stored in the config.
:param filename: an absolute path to the config file
"""
module = types.ModuleType('config')
module.__file__ = filename
try:
with open(filename) as config_file:
exec(compile(config_file.read(), filename, 'exec'),
module.__dict__)
except IOError as e:
e.strerror = 'Unable to load configuration file (%s)' % e.strerror
raise
self.from_object(module)
return True
def from_object(self, obj):
"""Update the values from the given object.
Objects are usually either modules or classes.
Just the uppercase variables in that object are stored in the config.
Example usage::
from yourapplication import default_config
app.config.from_object(default_config)
You should not use this function to load the actual configuration but
rather configuration defaults. The actual config should be loaded
with :meth:`from_pyfile` and ideally from a location not within the
package because the package might be installed system wide.
:param obj: an object holding the configuration
"""
for key in dir(obj):
if key.isupper():
self[key] = getattr(obj, key)