bpo-30374: Fixed several bugs in win_add2path.py #1645
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* Discard the DEFAULT "%PATH%" value. * Delete wrong `os.path.isdir()`. * Add absolute path instead of `%APPDATA%...` if the type of PATH is `REG_SZ`. * Broadcast a `WM_SETTINGCHANG` message after the change of env vars. * Add codes to deal with possible errors.
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@neEverett, thanks for your PR! By analyzing the history of the files in this pull request, we identified @benjaminp, @tiran and @birkenfeld to be potential reviewers. |
zooba
reviewed
Feb 2, 2019
Tools/scripts/win_add2path.py
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| @@ -11,43 +11,67 @@ | |||
| import site | |||
| import os | |||
| import winreg | |||
| import ctypes | |||
Tools/scripts/win_add2path.py
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| envpath, dtype = winreg.QueryValueEx(key, PATH) | ||
| except FileNotFoundError: | ||
| envpath, dtype = "", winreg.REG_EXPAND_SZ | ||
| pass |
Tools/scripts/win_add2path.py
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| except: | ||
| raise OSError("Failed to load PATH value") | ||
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| if hasattr(site, "USER_SITE") and dtype == winreg.REG_EXPAND_SZ: |
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This hasattr check doesn't apply to the subsequent elif block, or rather, if the first check here fails then we may end up crashing in the elif block.
Fixed the problems mentioned here: python#1645
Fixed the problems mentioned here: python#1645
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Closing and reopening to retrigger tests. |
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This PR is stale because it has been open for 30 days with no activity. |
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This PR is stale because it has been open for 30 days with no activity. |
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Closing as win_add2path.py was removed in #98167. thanks |
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DEFAULT = "%PATH%". The system PATH is effective to all users[1] so adding "%PATH%" in user PATH is unnecessary.os.path.isdir()always return False because the input path includes"%APPDATA%"and also because the USER_SITE directory does not yet exist when Python is just installed. It is now deleted to make paths be added correctly."%APPDATA%"effective[2] . However this is not a good practice (brought forward by Eryk Sun in the issue). Now the script does not change the type of PATH. If it's REG_SZ, the absolute path of%APPDATA%will be added instead.WM_SETTINGCHANGmessage[3] after the change of env vars.https://bugs.python.org/issue30374