python · zooba · Apr 11, 2023 · Apr 6, 2023 · Apr 6, 2023 · Apr 11, 2023
@@ -38,8 +38,15 @@ deactivate () {
 # unset irrelevant variables
 deactivate nondestructive

-VIRTUAL_ENV="__VENV_DIR__"
-export VIRTUAL_ENV
+# on Windows, a path can contain colons and backslashes and has to be converted:
+if [ "$OSTYPE" = "cygwin" ] || [ "$OSTYPE" = "msys" ] ; then
+    # transform D:\path\to\venv to /d/path/to/venv on MSYS
+    # and to /cygdrive/d/path/to/venv on Cygwin
+    export VIRTUAL_ENV=$(cygpath "__VENV_DIR__")
+else
+    # use the path as-is
+    export VIRTUAL_ENV="__VENV_DIR__"
+fi

 _OLD_VIRTUAL_PATH="$PATH"
 PATH="$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH"

diff --git a/Misc/NEWS.d/next/Windows/2023-04-11-09-22-22.gh-issue-103088.6AJEuR.rst b/Misc/NEWS.d/next/Windows/2023-04-11-09-22-22.gh-issue-103088.6AJEuR.rst
@@ -0,0 +1 @@
+Fixes venvs not working in bash on Windows across different disks
@@ -42,7 +42,7 @@
 @if NOT "%HOST_PYTHON%"=="" @%HOST_PYTHON% -Ec "import sys; assert sys.version_info[:2] >= (3, 9)" >nul 2>nul && (set PYTHON="%HOST_PYTHON%") && (set _Py_Python_Source=found as HOST_PYTHON) && goto :found

 @rem If py.exe finds a recent enough version, use that one
-@for %%p in (3.10 3.9) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found
+@for %%p in (3.11 3.10 3.9) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found

 @if NOT exist "%_Py_EXTERNALS_DIR%" mkdir "%_Py_EXTERNALS_DIR%"
 @set _Py_NUGET=%NUGET%
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Fixes venvs not working in bash on Windows across different disks