我目前正在使用pyShp将shapefile转换为geojson文件。我看到很多人使用与我相同的脚本，但我完全不知道为什么它不能在我的计算机上运行。我一次又一次地遇到相同的错误，但我不知道它从哪里来。
import shapefile
from json import dumps
# read the shapefile
reader = shapefile.Reader("my.shp")
fields = reader.fields[1:]
field_names = [field[0] for field in fields]
buffer = []
for sr in reader.shapeRecords():
atr = dict(zip(field_names, sr.record))
geom = sr.shape.__geo_interface__
buffer.append(dict(type="Feature", geometry=geom, properties=atr))
# write the GeoJSON file
geojson = open("pyshp-demo.json", "w")
geojson.write(dumps({"type": "FeatureCollection", "features": buffer}, indent=2) + "\n")
geojson.close()
这是我得到的输出：
TypeError Traceback (most recent call last)
<ipython-input-19-f2d1179eb9c9> in <module>()
15
16 geojson = open("pyshp-demo.json", "w")
---> 17 geojson.write(dumps({"type": "FeatureCollection", "features": buffer}, indent=2) + "\n")
18 geojson.close()
/usr/lib/python3.6/json/__init__.py in dumps(obj, skipkeys, ensure_ascii, check_circular, allow_nan, cls, indent, separators, default, sort_keys, **kw)
236 check_circular=check_circular, allow_nan=allow_nan, indent=indent,
237 separators=separators, default=default, sort_keys=sort_keys,
--> 238 **kw).encode(obj)
239
240
/usr/lib/python3.6/json/encoder.py in encode(self, o)
199 chunks = self.iterencode(o, _one_shot=True)
200 if not isinstance(chunks, (list, tuple)):
--> 201 chunks = list(chunks)
202 return ''.join(chunks)
203
/usr/lib/python3.6/json/encoder.py in _iterencode(o, _current_indent_level)
428 yield from _iterencode_list(o, _current_indent_level)
429 elif isinstance(o, dict):
--> 430 yield from _iterencode_dict(o, _current_indent_level)
431 else:
432 if markers is not None:
/usr/lib/python3.6/json/encoder.py in _iterencode_dict(dct, _current_indent_level)
402 else:
403 chunks = _iterencode(value, _current_indent_level)
--> 404 yield from chunks
405 if newline_indent is not None:
406 _current_indent_level -= 1
/usr/lib/python3.6/json/encoder.py in _iterencode_list(lst, _current_indent_level)
323 else:
324 chunks = _iterencode(value, _current_indent_level)
--> 325 yield from chunks
326 if newline_indent is not None:
327 _current_indent_level -= 1
/usr/lib/python3.6/json/encoder.py in _iterencode_dict(dct, _current_indent_level)
402 else:
403 chunks = _iterencode(value, _current_indent_level)
--> 404 yield from chunks
405 if newline_indent is not None:
406 _current_indent_level -= 1
/usr/lib/python3.6/json/encoder.py in _iterencode_dict(dct, _current_indent_level)
402 else:
403 chunks = _iterencode(value, _current_indent_level)
--> 404 yield from chunks
405 if newline_indent is not None:
406 _current_indent_level -= 1
/usr/lib/python3.6/json/encoder.py in _iterencode(o, _current_indent_level)
435 raise ValueError("Circular reference detected")
436 markers[markerid] = o
--> 437 o = _default(o)
438 yield from _iterencode(o, _current_indent_level)
439 if markers is not None:
/usr/lib/python3.6/json/encoder.py in default(self, o)
178 """
179 raise TypeError("Object of type '%s' is not JSON serializable" %
--> 180 o.__class__.__name__)
181
182 def encode(self, o):
TypeError: Object of type 'bytes' is not JSON serializable
通常我应该有一个正确的geojson文件。
如果您能帮助我，非常感谢：）