fix: make try except more localized to not catch all exceptions

1 files changed, 2 insertions, 2 deletions

diff --git a/pangraph/sequence.py b/pangraph/sequence.py
index 7759c90..9374335 100644
--- a/pangraph/sequence.py
+++ b/pangraph/sequence.py
@@ -120,6 +120,8 @@ class Path(object):
             ids = [n.blk.id for n in self.nodes]
             try:
                 i, j = ids.index(start[0]), ids.index(stop[0])
+            except:
+                return
 
                 if self.nodes[i].strand == start[1]:
                     beg, end, s = i, j, Strand.Plus
@@ -134,8 +136,6 @@ class Path(object):
                 self.position  = np.cumsum([0] + [n.length(self.name) for n in self.nodes])
 
                 N += 1
-            except:
-                return
 
     def replace(self, blk, tag, new_blks, blk_map):
         new = []