swig/python detected a memory leak of type ‘OSRSpatialReferenceShadow *‘, no destructor found.

云朵不吃雨

于 2024-10-30 17:32:03 发布

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分类专栏： python地理数据处理文章标签： python javascript 数据库

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问题提示

swig/python detected a memory leak of type 'OSRSpatialReferenceShadow *', no destructor found.
swig/python detected a memory leak of type 'OGRFeatureShadow *', no destructor found.

在这里插入图片描述

问题代码

    for input_datapath in tqdm(filelist):
        print(input_datapath)
        data = ogr.Open(input_datapath)
        layer = data.GetLayer(0)
        for feature in layer:
            if feature.GetField(filter_Field) in TG_val:
                feature_defn = output_layer.GetLayerDefn()
                new_feature = ogr.Feature(feature_defn)
                new_feature.SetFrom(feature)
                output_layer.CreateFeature(new_feature)

修正

data处理完后需要将内存释放
data.Destroy()

    for input_datapath in tqdm(filelist):
        print(input_datapath)
        data = ogr.Open(input_datapath)
        layer = data.GetLayer(0)
        for feature in layer:
            if feature.GetField(filter_Field) in TG_val:
                feature_defn = output_layer.GetLayerDefn()
                new_feature = ogr.Feature(feature_defn)
                new_feature.SetFrom(feature)
                output_layer.CreateFeature(new_feature) 
        data.Destroy()