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bpo-39413: Use _wputenv(), not SetEnvironmentVariableW() - #18107
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Don't implement os.unsetenv() in C using SetEnvironmentVariableW(name, NULL) anymore, but implement it in Python as os.putenv(name, ""). _wputenv() is preferred since it updates the CRT, whereas SetEnvironmentVariableW(name, NULL) does not. Replace also lambda functions with regular functions to get named functions, to ease debug.
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Lib/os.py
| _unsetenv = unsetenv | ||
| except NameError: | ||
| _unsetenv = lambda key: _putenv(key, "") | ||
| if name == 'nt': |
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This looks too complicated and obscure. Many lines are duplicated with small differences. Would not it be easier to implement nt.unsetenv() on C?
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@serhiy-storchaka: "This looks too complicated and obscure. Many lines are duplicated with small differences. Would not it be easier to implement nt.unsetenv() on C?" Ok, I wrote PR #18115 instead. |
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Don't implement os.unsetenv() in C using
SetEnvironmentVariableW(name, NULL) anymore, but implement it in
Python as os.putenv(name, ""). _wputenv() is preferred since it
updates the CRT, whereas SetEnvironmentVariableW(name, NULL) does
not.
Replace also lambda functions with regular functions to get named
functions, to ease debug.
https://bugs.python.org/issue39413