diff options
| -rw-r--r-- | numpy/core/records.py | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/numpy/core/records.py b/numpy/core/records.py index ff2a3ef9f..7f77bcc83 100644 --- a/numpy/core/records.py +++ b/numpy/core/records.py @@ -38,6 +38,7 @@ from __future__ import division, absolute_import, print_function import sys import os import warnings +from collections import OrderedDict from . import numeric as sb from . import numerictypes as nt @@ -75,12 +76,14 @@ numfmt = nt.typeDict def find_duplicate(list): """Find duplication in a list, return a list of duplicated elements""" - dup = [] - for i in range(len(list)): - if (list[i] in list[i + 1:]): - if (list[i] not in dup): - dup.append(list[i]) - return dup + counter = OrderedDict() + for item in list: + if item in counter: + counter[item] += 1 + else: + counter[item] = 1 + + return [item for item, counts in counter.items() if counts > 1] @set_module('numpy') |