Doc: Keep the venv/* exclude pattern. (GH-15229)

miss-islington · JulienPalard · web-flow · commit ae31b640c461 · 2019-08-25T23:19:58.000-07:00
In case it has been previously created. (cherry picked from commit 73e0549) Co-authored-by: Julien Palard <julien@palard.fr>
diff --git a/Doc/conf.py b/Doc/conf.py
@@ -38,8 +38,10 @@
 needs_sphinx = "1.6.6"
 
 # Ignore any .rst files in the venv/ directory.
-venvdir = os.getenv('VENVDIR', 'venv')
-exclude_patterns = [venvdir+'/*', 'README.rst']
+exclude_patterns = ['venv/*', 'README.rst']
+venvdir = os.getenv('VENVDIR')
+if venvdir is not None:
+    exclude_patterns.append(venvdir + '/*')
 
 # Disable Docutils smartquotes for several translations
 smartquotes_excludes = {
