关于ast.literal_eval()的问题
我试着运行下方的代码：a = '{"code":0,"message":"0","ttl":1,"data":{"list":{"tlist":{"36":{"tid":36,"count":1,"name":"知识"}},"vlist":[{"comment":38,"typeid":122,"play":4101,"pic":"5555","subtitle":"","description":"5555","copyright":"1","title":"555","review":0,"author":"光点科技官方","mid":24892260,"created":1612066096,"length":"00:14","video_review":0,"aid":801433227,"bvid":"BV1Ay4y1n73d","hide_click":false,"is_pay":0,"is_union_video":0,"is_steins_gate":0,"is_live_playback":0}]},"page":{"pn":1,"ps":30,"count":1}}}'import ast
b = ast.literal_eval(a)
报错如下：
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
b = ast.literal_eval(a)
File "D:\Python\lib\ast.py", line 105, in literal_eval
return _convert(node_or_string)
File "D:\Python\lib\ast.py", line 94, in _convert
return dict(zip(map(_convert, node.keys),
File "D:\Python\lib\ast.py", line 94, in _convert
return dict(zip(map(_convert, node.keys),
File "D:\Python\lib\ast.py", line 94, in _convert
return dict(zip(map(_convert, node.keys),
File "D:\Python\lib\ast.py", line 85, in _convert
return list(map(_convert, node.elts))
File "D:\Python\lib\ast.py", line 94, in _convert
return dict(zip(map(_convert, node.keys),
File "D:\Python\lib\ast.py", line 104, in _convert
return _convert_signed_num(node)
File "D:\Python\lib\ast.py", line 78, in _convert_signed_num
return _convert_num(node)
File "D:\Python\lib\ast.py", line 69, in _convert_num
_raise_malformed_node(node)
File "D:\Python\lib\ast.py", line 66, in _raise_malformed_node
raise ValueError(f'malformed node or string: {node!r}')
ValueError: malformed node or string: <ast.Name object at 0x0000018DD0FF1F40>
我该怎么办？ 报错原因是里面有个字典的value值为false
"hide_click":false
要么修改为'false'，要么修改为False
单纯的false没有定义，引发的错误
另外可以直接用eval函数
a = '{"code":0,"message":"0","ttl":1,"data":{"list":{"tlist":{"36":{"tid":36,"count":1,"name":"知识"}},"vlist":[{"comment":38,"typeid":122,"play":4101,"pic":"5555","subtitle":"","description":"5555","copyright":"1","title":"555","review":0,"author":"光点科技官方","mid":24892260,"created":1612066096,"length":"00:14","video_review":0,"aid":801433227,"bvid":"BV1Ay4y1n73d","hide_click":false,"is_pay":0,"is_union_video":0,"is_steins_gate":0,"is_live_playback":0}]},"page":{"pn":1,"ps":30,"count":1}}}'
import ast
b = ast.literal_eval(a.replace('false','False')) 逃兵 发表于 2021-6-22 14:08
报错原因是里面有个字典的value值为false
"hide_click":false
谢谢！
不过我发现我这个版本（3.9.5）的eval()也不能处理false数据，报错如下：Traceback (most recent call last):
File "<pyshell#7>", line 1, in <module>
b = eval(a)
File "<string>", line 1, in <module>
NameError: name 'false' is not defined
我一开始的解决方法是直接加入两行代码：
global false, null, true
false = null = true = ''
不过由于eval()函数有安全漏洞，所以我仍然用ast.literal_eval()来互相转化 DrWhiter 发表于 2021-6-22 14:44
谢谢！
不过我发现我这个版本（3.9.5）的eval()也不能处理false数据，报错如下：
我一开始的解决方法是 ...
在python中
false属于变量
False才是关键字，所以不管哪个版本fasle都会报错
这里是由于false没有定义引发的错误
你在前面声明变量false = null = true = ''
使得false被定义才不会报错
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