diff options
Diffstat (limited to 'Lib/os.py')
| -rw-r--r-- | Lib/os.py | 28 |
1 files changed, 26 insertions, 2 deletions
@@ -354,6 +354,14 @@ except NameError: else: import UserDict + # Fake unsetenv() for Windows + # not sure about os2 and dos here but + # I'm guessing they are the same. + + if name in ('os2', 'nt', 'dos'): + def unsetenv(key): + putenv(key, "") + if name == "riscos": # On RISC OS, all env access goes through getenv and putenv from riscosenviron import _Environ @@ -370,8 +378,15 @@ else: self.data[key.upper()] = item def __getitem__(self, key): return self.data[key.upper()] - def __delitem__(self, key): - del self.data[key.upper()] + try: + unsetenv + except NameError: + def __delitem__(self, key): + del self.data[key.upper()] + else: + def __delitem__(self, key): + unsetenv(key) + del self.data[key.upper()] def has_key(self, key): return self.data.has_key(key.upper()) def get(self, key, failobj=None): @@ -391,6 +406,15 @@ else: def update(self, dict): for k, v in dict.items(): self[k] = v + try: + unsetenv + except NameError: + pass + else: + def __delitem__(self, key): + unsetenv(key) + del self.data[key] + environ = _Environ(environ) |