diff options
Diffstat (limited to 'src/engine')
| -rw-r--r-- | src/engine/SCons/Environment.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/engine/SCons/Environment.py b/src/engine/SCons/Environment.py index 480a1d6..4f8e41b 100644 --- a/src/engine/SCons/Environment.py +++ b/src/engine/SCons/Environment.py @@ -167,7 +167,7 @@ def _set_SCANNERS(env, key, value): def _delete_duplicates(l, keep_last): """Delete duplicates from a sequence, keeping the first or last.""" - seen={} + seen=set() result=[] if keep_last: # reverse in & out, then keep first l.reverse() @@ -175,7 +175,7 @@ def _delete_duplicates(l, keep_last): try: if i not in seen: result.append(i) - seen[i]=1 + seen.add(i) except TypeError: # probably unhashable. Just keep it. result.append(i) |