bpo-39631: Fix file association MIME type in the Windows installer (GH-20205)

Use text/x-python instead of text/plain to avoid issues with tools assuming that "ShellExecute(script)" is a non-executable operation.
(cherry picked from commit 8c862e51248c5ebfec787badec88eb58c9267e1e)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

diff --git a/Tools/msi/launcher/launcher_reg.wxs b/Tools/msi/launcher/launcher_reg.wxs
index dace97ee58bb7b36d1aa59983c4f4b2f82e5c23a..e8d9d24d43fa8ce76059ad29409baa557f198e22 100644 (file)
--- a/Tools/msi/launcher/launcher_reg.wxs
+++ b/Tools/msi/launcher/launcher_reg.wxs
@@ -6,14 +6,14 @@
                 <RegistryValue KeyPath="yes" Root="HKMU" Key="Software\Python\PyLauncher" Name="AssociateFiles" Value="1" Type="integer" />
                 
                 <ProgId Id="Python.File" Description="!(loc.PythonFileDescription)" Advertise="no" Icon="py.exe" IconIndex="1">
-                    <Extension Id="py" ContentType="text/plain">
+                    <Extension Id="py" ContentType="text/x-python">
                         <Verb Id="open" TargetFile="py.exe" Argument="&quot;%L&quot; %*" />
                     </Extension>
                 </ProgId>
                 <RegistryValue Root="HKCR" Key="Python.File\shellex\DropHandler" Value="{BEA218D2-6950-497B-9434-61683EC065FE}" Type="string" />
                 
                 <ProgId Id="Python.NoConFile" Description="!(loc.PythonNoConFileDescription)" Advertise="no" Icon="py.exe" IconIndex="1">
-                    <Extension Id="pyw" ContentType="text/plain">
+                    <Extension Id="pyw" ContentType="text/x-python">
                         <Verb Id="open" TargetFile="pyw.exe" Argument="&quot;%L&quot; %*" />
                     </Extension>
                 </ProgId>