add support for legacy output

jc/parsers/pip_list.py

@@ -89,6 +89,14 @@ def parse(data, raw=False, quiet=False):
     # Clear any blank lines
     cleandata = list(filter(None, linedata))
 
+    # detect legacy output type
+    if cleandata[0].find(' (') != -1:
+        for row in cleandata:
+            raw_output.append({'package': row.split(' (')[0],
+                               'version': row.split(' (')[1].rstrip(')')})
+
+    # otherwise normal table output
+    else:
         # clear separator line
         for i, line in reversed(list(enumerate(cleandata))):
             if line.find('---') != -1: