查询MemoryError ArcGIS服务时

Question

在运行以下脚本时，我将遇到以下MemoryError。如能提供任何协助，将不胜感激。我正在查询的层包含235,896个特性，我担心这就是问题所在。

脚本

import arcgis
import json

from arcgis import ArcGIS
service = ArcGIS("http://mapping.dekalbcountyga.gov/arcgis/rest/services/LandUse/MapServer")
query = service.get(0, count_only=False)
json_query = json.dump(query)
f = open("dekalb_parcels.geojson", "w")
f.write(json_query)
f.close()

误差

  Traceback (most recent call last):
      File "G:/Python/Scripts/dekalb_parcel_query.py", line 8, in <module>
        query = service.get(0, count_only=False)
      File "C:\Python27\lib\site-packages\arcgis\arcgis.py", line 146, in get
        jsobj = self.get_json(layer, where, fields, count_only, srid)
      File "C:\Python27\lib\site-packages\arcgis\arcgis.py", line 90, in get_json
        return response.json(strict=False)
      File "C:\Python27\lib\site-packages\requests\models.py", line 802, in json
        return json.loads(self.text, **kwargs)
      File "C:\Python27\lib\site-packages\requests\models.py", line 769, in text
        content = str(self.content, encoding, errors='replace')
    MemoryError

Answer 1

我可以通过切换到64位Python来纠正这个问题。当进程达到2GB的内存使用量时，进程就崩溃了，但是通过切换到64位Python，我避免了这个问题。