From 4a9a505d6f2474a570422dad89f8d1b344d6cd36 Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@microsoft.com>
Date: Wed, 27 Mar 2019 08:14:53 -0700
Subject: [PATCH] bpo-36441: Fixes creating a venv when debug binaries are
 installed. (#12566)

---
 Lib/venv/__init__.py                              |  3 +++
 .../2019-03-26-11-46-15.bpo-36441.lYjGF1.rst      |  1 +
 Tools/msi/lib/lib_files.wxs                       | 15 +++++++++++++++
 3 files changed, 19 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Windows/2019-03-26-11-46-15.bpo-36441.lYjGF1.rst

diff --git a/Lib/venv/__init__.py b/Lib/venv/__init__.py
index 5e6d375e95..4a49b240b8 100644
--- a/Lib/venv/__init__.py
+++ b/Lib/venv/__init__.py
@@ -195,6 +195,9 @@ class EnvBuilder:
                     src = os.path.join(os.path.dirname(src), basename + ext)
                 else:
                     src = srcfn
+                if not os.path.exists(src):
+                    logger.warning('Unable to copy %r', src)
+                    return
 
             shutil.copyfile(src, dst)
 
diff --git a/Misc/NEWS.d/next/Windows/2019-03-26-11-46-15.bpo-36441.lYjGF1.rst b/Misc/NEWS.d/next/Windows/2019-03-26-11-46-15.bpo-36441.lYjGF1.rst
new file mode 100644
index 0000000000..b27abff620
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2019-03-26-11-46-15.bpo-36441.lYjGF1.rst
@@ -0,0 +1 @@
+Fixes creating a venv when debug binaries are installed.
diff --git a/Tools/msi/lib/lib_files.wxs b/Tools/msi/lib/lib_files.wxs
index a9952bdac4..251f9b1aeb 100644
--- a/Tools/msi/lib/lib_files.wxs
+++ b/Tools/msi/lib/lib_files.wxs
@@ -69,6 +69,15 @@
     </Fragment>
     
     <Fragment>
+        <!-- The auto-generated directory is not available when building debug binaries -->
+        <DirectoryRef Id="Lib">
+            <Directory Id="Lib_venv__d" Name="venv">
+                <Directory Id="Lib_venv_scripts__d" Name="scripts">
+                    <Directory Id="Lib_venv_scripts_nt__d" Name="nt" />
+                </Directory>
+            </Directory>
+        </DirectoryRef>
+
         <ComponentGroup Id="lib_extensions_d">
             <?foreach ext in $(var.exts)?>
             
@@ -87,6 +96,12 @@
             <Component Id="sqlite3_d.pdb" Directory="DLLs" Guid="*">
                 <File Name="sqlite3_d.pdb" KeyPath="yes" />
             </Component>
+            <Component Id="venvlauncher_d.exe" Directory="Lib_venv_scripts_nt__d" Guid="*">
+                <File Name="python_d.exe" Source="venvlauncher_d.exe" KeyPath="yes" />
+            </Component>
+            <Component Id="venvwlauncher_d.exe" Directory="Lib_venv_scripts_nt__d" Guid="*">
+                <File Name="pythonw_d.exe" Source="venvwlauncher_d.exe" KeyPath="yes" />
+            </Component>
         </ComponentGroup>
     </Fragment>
     <Fragment>
-- 
2.40.0