switch to tweepy

src/util.py

@@ -0,0 +1,18 @@
+## Shared utility functions.
+
+import os
+
+global twAPI
+twAPI = None
+
+# returns system path to this project, which is
+# up one level from this file's directory.
+def get_project_dir():
+    return os.path.join(os.path.dirname(__file__), os.pardir)
+
+# determine if tweet involves cross-company interaction
+def is_cross_company(tweet):
+    pass
+
+def clamp(n, smallest, largest):
+    return max(smallest, min(n, largest))