Runtime context
Project description
pip install runtime-contextRuntimeContext Example
from runtime_context import RuntimeContext
runtime_context = RuntimeContext()
def do_something(i):
if runtime_context.dry_run:
print('{} - dry run'.format(i))
else:
print('{} - for real'.format(i))
with runtime_context(dry_run=False):
do_something(1) # for real
with runtime_context(dry_run=True):
do_something(2) # dry run
runtime_context.dry_run = False
do_something(3) # for real
with runtime_context():
do_something(4) # for real
runtime_context.dry_run = True
do_something(5) # dry run
do_something(6) # for realruntime_context_env Example
import json
from typing import Union # noqa
from runtime_context import EnvBase, runtime_context_env # noqa
@runtime_context_env
class YourApp:
dry_run = False
db_name = None
config_file = None
env = YourApp() # type: Union[YourApp, EnvBase]
@env.context_var_set.listener(predicate=lambda name: name == 'config_file')
def reload_config():
if not env.config_file:
return
print('Reloading config from {}'.format(env.config_file))
with open(env.config_file) as f:
config = json.load(f)
for k, v in config.items():
env.set(k, v)
with env():
assert env.dry_run is False
assert env.db_name is None
env.config_file = 'config.json' # prints 'Reloading config from config.json'
assert env.db_name == 'products' # read from config.json file
with env(dry_run=True):
assert env.dry_run is TrueRelease history Release notifications | RSS feed
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