fix call to variables when they are not set (bioconda#15916)

jerowe · Jun 15, 2019 · c9e1a1e · c9e1a1e
1 parent 13c639b
commit c9e1a1e
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/bootstrap.py b/bootstrap.py
@@ -110,9 +110,9 @@ def _write_custom_activate(install_path):
     'WORKSPACE': args.bootstrap, 
     'BOOTSTRAP': "true", 
     'USE_DOCKER': use_docker, 
-    'PATH': os.environ['PATH'], 
-    'HTTPS_PROXY': os.environ['HTTPS_PROXY'],
-    'https_proxy': os.environ['https_proxy']
+    'PATH': os.environ.get('PATH', ""),
+    'HTTPS_PROXY': os.environ.get('HTTPS_PROXY', ""),
+    'https_proxy': os.environ.get('https_proxy', "")
 }
 
 sp.check_call(['.circleci/setup.sh'], env=env)