plotdevice/plotdevice/lib/__init__.py at main · plotdevice/plotdevice · GitHub

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import sys

import _plotdevice # make sure the c-extensions are accessible for the submodules

# allow Libraries to request a _ctx reference

def register(module):

"""When called within a library's __init__.py, returns the currently bound context.

After having registered, the module's _ctx variable will be updated whenever the

context changes. Libraries should register themselves using the following snippet:

from plotdevice.lib import register

_ctx = register(__name__)

"""

_bound['modules'].append(module)

return _bound['ctx']

# keep registered libraries up-to-date when the context is re-bound

def bind(ctx):

_bound['ctx'] = ctx

for module in _bound['modules']:

setattr(sys.modules[module], '_ctx', ctx)

_bound = {"ctx":None, "modules":[]}