Fix issue in DictManager that would lead to incorrectly listed dicts. (…

…#203)

Fix issue in DictManager that would lead to incorrectly listed dicts.

The regex was matching files that included the suffix, but did not
necessarily *end* with the given suffix.

changelog.txt

@@ -21,6 +21,7 @@ next
 ----
 
  - Keep signac shell command history on a per-project basis.
+ - Fix issue with incorrect detection of dict-like files managed with the ``DictManager`` class (e.g. ``job.stores``) (#203).
 
 [1.1.0] -- 2019-05-19
 ---------------------

signac/core/dict_manager.py

@@ -108,7 +108,7 @@ def __delattr__(self, name):
 
     def __iter__(self):
         for fn in os.listdir(self.prefix):
-            m = re.match('(.*){}'.format(self.suffix), fn)
+            m = re.match('^(.*){}$'.format(self.suffix), fn)
             if m:
                 yield m.groups()[0]