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'''module that aggregates config information''' __all__=('_reset','register_reset') def _defaults_init(): ''' create & return defaults for all reportlab settings from reportlab.rl_settings.py reportlab.local_rl_settings.py reportlab_settings.py or ~/.reportlab_settings latter values override earlier ''' from reportlab.lib.utils import rl_exec import os _DEFAULTS={} rl_exec('from reportlab.rl_settings import *',_DEFAULTS) _overrides=_DEFAULTS.copy() try: rl_exec('from reportlab.local_rl_settings import *',_overrides) _DEFAULTS.update(_overrides) except ImportError: pass _overrides=_DEFAULTS.copy() try: rl_exec('from reportlab_settings import *',_overrides) _DEFAULTS.update(_overrides) except ImportError: _overrides=_DEFAULTS.copy() try: try: fn = os.path.expanduser(os.path.join('~','.reportlab_settings')) #appengine fails with KeyError/ImportError (dev/live) except (KeyError, ImportError): fn = None if fn: with open(fn,'rb') as f: rl_exec(f.read(),_overrides) _DEFAULTS.update(_overrides) except: pass return _DEFAULTS _DEFAULTS=_defaults_init() _SAVED = {} sys_version=None #this is used to set the options from def _setOpt(name, value, conv=None): '''set a module level value from environ/default''' from os import environ ename = 'RL_'+name if ename in environ: value = environ[ename] if conv: value = conv(value) globals()[name] = value def _startUp(): '''This function allows easy resetting to the global defaults If the environment contains 'RL_xxx' then we use the value else we use the given default''' import os, sys global sys_version, _unset_ sys_version = sys.version.split()[0] #strip off the other garbage from reportlab.lib import pagesizes from reportlab.lib.utils import rl_isdir if _SAVED=={}: _unset_ = getattr(sys,'_rl_config__unset_',None) if _unset_ is None: class _unset_: pass sys._rl_config__unset_ = _unset_ = _unset_() global __all__ A = list(__all__) for k,v in _DEFAULTS.items(): _SAVED[k] = globals()[k] = v if k not in __all__: A.append(k) __all__ = tuple(A) #places to search for Type 1 Font files import reportlab D = {'REPORTLAB_DIR': os.path.abspath(os.path.dirname(reportlab.__file__)), 'CWD': os.getcwd(), 'disk': os.getcwd().split(':')[0], 'sys_version': sys_version, 'XDG_DATA_HOME': os.environ.get('XDG_DATA_HOME','~/.local/share'), } for k in _SAVED: if k.endswith('SearchPath'): P=[] for p in _SAVED[k]: d = (p % D).replace('/',os.sep) if '~' in d: try: d = os.path.expanduser(d) #appengine fails with KeyError/ImportError (dev/live) except (KeyError, ImportError): continue if rl_isdir(d): P.append(d) _setOpt(k,os.pathsep.join(P),lambda x:x.split(os.pathsep)) globals()[k] = list(filter(rl_isdir,globals()[k])) else: v = _SAVED[k] if isinstance(v,(int,float)): conv = type(v) elif k=='defaultPageSize': conv = lambda v,M=pagesizes: getattr(M,v) else: conv = None _setOpt(k,v,conv) _registered_resets=[] def register_reset(func): '''register a function to be called by rl_config._reset''' _registered_resets[:] = [x for x in _registered_resets if x()] L = [x for x in _registered_resets if x() is func] if L: return from weakref import ref _registered_resets.append(ref(func)) def _reset(): '''attempt to reset reportlab and friends''' _startUp() #our reset for f in _registered_resets[:]: c = f() if c: c() else: _registered_resets.remove(f) _startUp()