Lib/plat-riscos/riscosenviron.py

   1 """A more or less complete dictionary like interface for the RISC OS environment."""
   2
   3 import riscos
   4
   5 class _Environ:
   6     def __init__(self, initial = None):
   7         pass
   8     def __repr__(self):
   9         return repr(riscos.getenvdict())
  10     def __cmp__(self, dict):
  11         return cmp(riscos.getenvdict(), dict)
  12     def __len__(self):
  13         return len(riscos.getenvdict())
  14     def __getitem__(self, key):
  15         ret = riscos.getenv(key)
  16         if ret<>None:
  17             return ret
  18         else:
  19             raise KeyError
  20     def __setitem__(self, key, item):
  21         riscos.putenv(key, item)
  22     def __delitem__(self, key):
  23         riscos.delenv(key)
  24     def clear(self):
  25         # too dangerous on RISC OS
  26         pass
  27     def copy(self):
  28         return riscos.getenvdict()
  29     def keys(self): return riscos.getenvdict().keys()
  30     def items(self): return riscos.getenvdict().items()
  31     def values(self): return riscos.getenvdict().values()
  32     def has_key(self, key):
  33         value = riscos.getenv(key)
  34         return value<>None
  35     def __contains__(self, key):
  36         return riscos.getenv(key) is not None
  37     def update(self, dict):
  38         for k, v in dict.items():
  39             riscos.putenv(k, v)
  40     def get(self, key, failobj=None):
  41         value = riscos.getenv(key)
  42         if value<>None:
  43             return value
  44         else:
  45             return failobj