'reload' a variable in python -

'reload' a variable in python -

so have next situation. have configuration class config.py holds number of scheme setting variables like:

class tvbsettings(): tvb_config_file = os.path.expanduser(os.path.join("~", 'tvb.configuration')) tvb_storage = os.path.expanduser(os.path.join("~", "tvb" + os.sep)) .... etc ...

now besides have configuration file when exists overwrite couple of these variables. in order display these 'overwritable' configuration variables in ui i'm using genshi/cherrypy , have base of operations dictionary in settingsservice speficifies info (in setttingsservice.py):

from tvb.config import tvbsettings cfg configurable_keys = {'tvb_storage':{'label':'root used projects:', 'value':cfg.tvb_storage, 'type':'text'}, 'server_ip':{'label':'server name:', 'value':cfg.server_ip, 'type':'text'}, 'web_server_port':{'label':'the port used cherrypy:', 'value':cfg.web_server_port, 'dtype':'primitive', 'type':'text'}, ... other entries ... }

now settingsservice.py has method update_configuration() read configuration file , modifies default parameters frim cfg. works fine , changes seen troughout rest of system, configurable_keys dictionary still holds old values (i.e. in illustration above if cfg.tvb_storage modified configuration file, in dictionary old value still kept). i'm guessing it's same reason changes not done if do:

>>> class a: ... x = 1 >>> = {1: a.x} >>> a.x = 2 >>> {1: 1}

so question there way forcefulness python 'reload' variable take business relationship new changes.

edit (after sblom response):

that not alternative in case, cfg a illustration , configurable_keys needs different entries number of different variabled cfg.

regards, bogdan

if said a = {1: a}, a.x = 2, new value of a[1].x 2.

the reason it's not working written a.x plain old info type, not object reference. if utilize a instead, is object reference, changes surfaced later.

python