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close files after reading #637

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close files after reading #637

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8 changes: 5 additions & 3 deletions PythonAPI/pycocotools/coco.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,8 @@ def __init__(self, annotation_file=None):
if not annotation_file == None:
print('loading annotations into memory...')
tic = time.time()
dataset = json.load(open(annotation_file, 'r'))
with open(annotation_file, 'r', encoding='utf-8') as openFile:
dataset = json.load(openFile)
assert type(dataset)==dict, 'annotation file format {} not supported'.format(type(dataset))
print('Done (t={:0.2f}s)'.format(time.time()- tic))
self.dataset = dataset
Expand Down Expand Up @@ -314,7 +315,8 @@ def loadRes(self, resFile):
print('Loading and preparing results...')
tic = time.time()
if type(resFile) == str or (PYTHON_VERSION == 2 and type(resFile) == unicode):
anns = json.load(open(resFile))
with open(resFile, 'r', encoding='utf-8') as openFile:
anns = json.load(openFile)
elif type(resFile) == np.ndarray:
anns = self.loadNumpyAnnotations(resFile)
else:
Expand Down Expand Up @@ -438,4 +440,4 @@ def annToMask(self, ann):
"""
rle = self.annToRLE(ann)
m = maskUtils.decode(rle)
return m
return m