Failsafe defaults for imported env variables.

src/qutescript/request.py

@@ -54,21 +54,22 @@ class Request(object):
 def build_request(script_path):
     import os
     request = Request()
-    request.mode = os.getenv('QUTE_MODE')
-    request.user_agent = os.getenv('QUTE_USER_AGENT')
-    request.fifo = os.getenv('QUTE_FIFO')
-    request.html = os.getenv('QUTE_HTML')
-    request.text = os.getenv('QUTE_TEXT')
-    request.config_dir = os.getenv('QUTE_CONFIG_DIR')
-    request.data_dir = os.getenv('QUTE_DATA_DIR')
-    request.download_dir = os.getenv('QUTE_DOWNLOAD_DIR')
-    request.commandline_text = os.getenv('QUTE_COMMANDLINE_TEXT')
-    request.url = os.getenv('QUTE_URL')
-    request.title = os.getenv('QUTE_TITLE')
+    request.mode = os.getenv('QUTE_MODE', '')
+    request.user_agent = os.getenv('QUTE_USER_AGENT', '')
+    request.fifo = os.getenv('QUTE_FIFO', '')
+    request.html = os.getenv('QUTE_HTML', '')
+    request.text = os.getenv('QUTE_TEXT', '')
+    request.config_dir = os.getenv('QUTE_CONFIG_DIR', '')
+    request.data_dir = os.getenv('QUTE_DATA_DIR', '')
+    request.download_dir = os.getenv('QUTE_DOWNLOAD_DIR', '')
+    request.commandline_text = os.getenv('QUTE_COMMANDLINE_TEXT', '')
+    request.url = os.getenv('QUTE_URL', '')
+    request.title = os.getenv('QUTE_TITLE', '')
+    request.selected_text = os.getenv('QUTE_SELECTED_TEXT', '')
+    request.selected_html = os.getenv('QUTE_SELECTED_HTML', '')
     request.script_name = os.path.basename(script_path)
     request.script_path = os.path.basename(script_path)
-    request.selected_text = os.getenv('QUTE_SELECTED_TEXT')
-    request.selected_html = os.getenv('QUTE_SELECTED_HTML')
+
     if not request.mode:
         raise AssertionError('Unable to read environment variables, did you pass `:spawn --userscript` ?')
     return request