python之将 CSV 转换为 GeoJSON 时如何删除不需要的双引号

我正在开始使用 Python3，我正在编写一个脚本来将 CSV 文件转换为 GeoJSON 文件。 转换有效，但我仍然对坐标有问题，没有采用正确的格式。我需要删除双引号，但它不起作用。

这是我的部分代码:

def readCsvFile(): 
    features=[] 
    geoJson={} 
    with open('resources/data_export.csv',newline= '') as csvfile: 
        csvReader = csv.DictReader(csvfile,delimiter=',',quotechar='|') 
        for row in csvReader: 
            features.append({'type': 'Feature', 
                            'geometry': { 
                                'type': 'Point', "coordinates" : [str(row['longitude']), str(row['latitude'])]}, 'properties': {'id': decodeString(row['id']), 'field1': decodeString(row['field1']), 'field2': decodeString(row['field2'])}) 
 
    geoJson = {'type': 'FeatureCollection', 'features': features} 
    return json.dumps(geoJson) 

我得到的结果是:

{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": ["16.394564", "48.246426"]}, "properties": {"id": "0", ... 

虽然我应该得到:

{"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [16.394564, 48.246426]}, "properties": {"id": "0", 

请您参考如下方法:

尝试将其转换为 float 而不是字符串:

"coordinates" : [float(row['longitude']), float(row['latitude'])]}