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-rw-r--r--Doc/conf.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/Doc/conf.py b/Doc/conf.py
index e85ea5b..abaa760 100644
--- a/Doc/conf.py
+++ b/Doc/conf.py
@@ -48,8 +48,10 @@ highlight_language = 'python3'
needs_sphinx = '1.8'
# 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 = {