def set(constants):
"""
REACH INTO THE MODULES AND OBJECTS TO SET CONSTANTS.
THINK OF THIS AS PRIMITIVE DEPENDENCY INJECTION FOR MODULES.
USEFUL FOR SETTING DEBUG FLAGS.
"""
if not constants:
return
constants = wrap(constants)
for k, new_value in constants.leaves():
errors = []
try:
old_value = dot.set_attr(sys.modules, k, new_value)
continue
except Exception, e:
errors.append(e)
# ONE MODULE IS MISSING, THE CALLING MODULE
try:
caller_globals = sys._getframe(1).f_globals
caller_file = caller_globals["__file__"]
if not caller_file.endswith(".py"):
raise Exception("do not know how to handle non-python caller")
caller_module = caller_file[:-3].replace("/", ".")
path = split_field(k)
for i, p in enumerate(path):
if i == 0:
continue
prefix = join_field(path[:1])
name = join_field(path[i:])
if caller_module.endswith(prefix):
old_value = dot.set_attr(caller_globals, name, new_value)
if DEBUG:
from pyLibrary.debugs.logs import Log
Log.note("Changed {{module}}[{{attribute}}] from {{old_value}} to {{new_value}}",
module= prefix,
attribute= name,
old_value= old_value,
new_value= new_value)
break
except Exception, e:
errors.append[e]
def __setattr__(self, key, value):
obj = _get(self, "_obj")
set_attr(obj, key, value)
def __setattr__(self, key, value):
obj = _get(self, "_obj")
set_attr(obj, key, value)
