bpo-34011: Update code copying DLLs and init.tcl into venvs. (GH-8253)
diff --git a/Lib/venv/__init__.py b/Lib/venv/__init__.py
index 716129d..e0ab241 100644
--- a/Lib/venv/__init__.py
+++ b/Lib/venv/__init__.py
@@ -9,6 +9,7 @@
import shutil
import subprocess
import sys
+import sysconfig
import types
logger = logging.getLogger(__name__)
@@ -207,7 +208,10 @@
copier(context.env_exe, path, relative_symlinks_ok=True)
if not os.path.islink(path):
os.chmod(path, 0o755)
- else:
+ elif sysconfig.is_python_build(True):
+ # See bpo-34011. This copying code should only be needed when a
+ # venv is created from a source Python build (i.e. not an installed
+ # Python)
subdir = 'DLLs'
include = self.include_binary
files = [f for f in os.listdir(dirname) if include(f)]
diff --git a/Misc/NEWS.d/next/Windows/2018-07-11-15-58-06.bpo-34011.Ho_d5T.rst b/Misc/NEWS.d/next/Windows/2018-07-11-15-58-06.bpo-34011.Ho_d5T.rst
new file mode 100644
index 0000000..8fcf8b5
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2018-07-11-15-58-06.bpo-34011.Ho_d5T.rst
@@ -0,0 +1,4 @@
+A suite of code has been changed which copied across DLLs and init.tcl from
+the running Python location into a venv being created. These copies are needed
+only when running from a Python source build, and the copying code is now only
+run when that is the case, rather than whenever a venv is created.