Python: 为什么重复 json.load 会导致错误
Python: why does repeat of json.load cause error
with open(LATEST_UPDATE_FULL_PATH) as JSON_FILE_UPDATE:
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
为什么执行两次“加载”会导致以下情况?
这个文件有句柄吗?我找不到要发布的内容 JSON_FILE_UPDATE.
Traceback (most recent call last):
File "PhthonScript", line 69, in <module>
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
File "...\PythonByMiniconda3\lib\json\__init__.py", line 293, in load
return loads(fp.read(),
File "...\PythonByMiniconda3\lib\json\__init__.py", line 357, in loads
return _default_decoder.decode(s)
File "...\PythonByMiniconda3\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "...\PythonByMiniconda3\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
试试这个:
JSON_DATA_UPDATE = json.loads(JSON_FILE_UPDATE)
加载后,文件将转换为 json。无法将 json 转换为 json.
另一种方式,这可能适用于 json:
的字符串
import ast
file = """{
"students": [
{
"name": "Millie Brown",
"active": False,
"rollno": 11
},
{
"name": "Sadie Sink",
"active": True,
"rollno": 10
}
]
}"""
print(type(file))
dict = ast.literal_eval(file)
print(type(dict))
dict['students'][0]['name'] would be "Millie Brown"
dict['students'][1]['active'] would be True
with open(LATEST_UPDATE_FULL_PATH) as JSON_FILE_UPDATE:
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
为什么执行两次“加载”会导致以下情况? 这个文件有句柄吗?我找不到要发布的内容 JSON_FILE_UPDATE.
Traceback (most recent call last):
File "PhthonScript", line 69, in <module>
JSON_DATA_UPDATE = json.load(JSON_FILE_UPDATE)
File "...\PythonByMiniconda3\lib\json\__init__.py", line 293, in load
return loads(fp.read(),
File "...\PythonByMiniconda3\lib\json\__init__.py", line 357, in loads
return _default_decoder.decode(s)
File "...\PythonByMiniconda3\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "...\PythonByMiniconda3\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
试试这个:
JSON_DATA_UPDATE = json.loads(JSON_FILE_UPDATE)
加载后,文件将转换为 json。无法将 json 转换为 json.
另一种方式,这可能适用于 json:
的字符串import ast
file = """{
"students": [
{
"name": "Millie Brown",
"active": False,
"rollno": 11
},
{
"name": "Sadie Sink",
"active": True,
"rollno": 10
}
]
}"""
print(type(file))
dict = ast.literal_eval(file)
print(type(dict))
dict['students'][0]['name'] would be "Millie Brown"
dict['students'][1]['active'] would be True