File "/usr/lib/python3.7/json/__init__.py", line 341, in loads raise TypeError(f'the JSON object must be str, bytes or bytearray, ' TypeError: the JSON object must be str, bytes or bytearray, not TextIOWrappe
时间: 2024-03-12 20:47:05 浏览: 212
这个错误通常是因为你尝试将一个文本文件对象直接传递给json.loads()函数。要解决这个问题,你应该首先使用open()函数打开文件,并使用read()方法读取文件内容,然后将文件内容作为字符串传递给json.loads()函数。例如:
```
import json
with open('data.json', 'r') as f:
data = json.loads(f.read())
```
在这个例子中,我们使用with语句打开了一个名为data.json的文件,使用read()方法读取文件内容,并将内容作为字符串传递给json.loads()函数。这样就可以避免TypeError错误了。
相关问题
报错如下: Traceback (most recent call last): File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 2091, in __call__ return self.wsgi_app(environ, start_response) File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 2076, in wsgi_app response = self.handle_exception(e) File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 2073, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 1518, in full_dispatch_request rv = self.handle_user_exception(e) File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 1516, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/lib64/python3.6/site-packages/flask/app.py", line 1502, in dispatch_request return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args) File "/temp/py/app-07240001.py", line 16, in display_yaml return render_template('index.html', highlighted_data=highlighted_data, css=css) File "/usr/local/lib64/python3.6/site-packages/flask/templating.py", line 150, in render_template ctx.app, File "/usr/local/lib64/python3.6/site-packages/flask/templating.py", line 128, in _render rv = template.render(context) File "/usr/local/lib/python3.6/site-packages/jinja2/environment.py", line 1291, in render self.environment.handle_exception() File "/usr/local/lib/python3.6/site-packages/jinja2/environment.py", line 925, in handle_exception raise rewrite_traceback_stack(source=source) File "/temp/py/templates/index.html", line 16, in top-level template code var originalData = {{ data|tojson|safe }}; File "/usr/local/lib/python3.6/site-packages/jinja2/filters.py", line 1673, in do_tojson return htmlsafe_json_dumps(value, dumps=dumps, **kwargs) File "/usr/local/lib/python3.6/site-packages/jinja2/utils.py", line 736, in htmlsafe_json_dumps dumps(obj, **kwargs) File "/usr/local/lib64/python3.6/site-packages/flask/json/__init__.py", line 139, in dumps rv = _json.dumps(obj, **kwargs) File "/usr/lib64/python3.6/json/__init__.py", line 238, in dumps **kw).encode(obj) File "/usr/lib64/python3.6/json/encoder.py", line 199, in encode chunks = self.iterencode(o, _one_shot=True) File "/usr/lib64/python3.6/json/encoder.py", line 257, in iterencode return _iterencode(o, 0) File "/usr/local/lib64/python3.6/site-packages/flask/json/__init__.py", line 57, in default return super().default(o) File "/usr/lib64/python3.6/json/encoder.py", line 180, in default o.__class__.__name__) TypeError: Object of type 'Undefined' is not JSON serializable
这个错误通常是由于模板中使用了未定义的变量引起的。在这种情况下,错误发生在`{{ data|tojson|safe }}`这一行,说明`data`变量没有正确传递给模板。
请确保在调用`render_template`函数时,将`data`变量作为参数传递给模板。你可以尝试将`data`变量传递给模板的方式更改为以下代码:
```python
@app.route('/')
def display_yaml():
with open('your_file.yml', 'r') as file:
data = file.read()
highlighted_data = highlight(data, YamlLexer(), HtmlFormatter())
css = HtmlFormatter().get_style_defs('.highlight')
return render_template('index.html', data=data, highlighted_data=highlighted_data, css=css)
```
然后,在`index.html`模板文件中,你需要将`data`变量传递给JavaScript部分,可以将以下代码添加到JavaScript部分:
```html
<script>
var originalData = {{ data|tojson|safe }};
// ...
</script>
```
这样,`originalData`变量就能正确地接收来自Python代码的数据。
请确保保存并重新运行你的应用,并刷新浏览器查看结果。如果问题仍然存在,请提供完整的错误堆栈信息以供参考。
Traceback (most recent call last): File "/home/k/Desktop/json_csv_interconv_movie.py", line 28, in <module> json2csv(file_name) File "/home/k/Desktop/json_csv_interconv_movie.py", line 17, in json2csv listf=json.load(jsonfile) File "/usr/lib/python3.10/json/__init__.py", line 293, in load return loads(fp.read(), File "/usr/lib/python3.10/json/__init__.py", line 346, in loads return _default_decoder.decode(s) File "/usr/lib/python3.10/json/decoder.py", line 337, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/python3.10/json/decoder.py", line 353, in raw_decode obj, end = self.scan_once(s, idx) json.decoder.JSONDecodeError: Expecting ',' delimiter: line 2 column 14 (char 16)
这个错误提示是JSON解码错误,说明读取JSON文件时出现了问题。具体来说,提示的错误是“Expecting ',' delimiter”,意思是期望在第二行的第14个字符(即第二行的第二个字段后面)有一个逗号分隔符(,),但是找不到这个逗号,导致解码失败。
你需要检查一下你的JSON文件是否符合JSON格式,特别是检查第二行的格式是否正确。如果第二行确实需要有逗号分隔符,则可以手动添加逗号来修复这个错误。如果JSON文件中有其他错误,也需要逐一检查并修复。
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