我正在尝试转换以下dict into JSON using json.dumps
:
{
'post_engaged': 36,
'post_impressions': 491,
'post_story': 23,
'comment_count': 6,
'created_time': '03:02 AM, Sep 30, 2012',
'message': 'Specialities of Shaktis and Pandavas. \n While having power, why there isn\\u2019t',
< built - in function id > : '471662059541196',
'status_type': 'status',
'likes_count': 22
} {
'post_engaged': 24,
'text': '30 Sept 2012 Avyakt Murlli ( Dual Voice )',
'post_story': 8,
'comment_count': 3,
'link': 'http:\\/\\/www.youtube.com\\/watch?v=VGmFj8g7JFA&feature=youtube_gdata_player',
'post_impressions': 307,
'created_time': '03:04 AM, Sep 30, 2012',
'message': 'Not available',
< built - in function id > : '529439300404155',
'status_type': 'video',
'likes_count': 7
} {
'post_engaged': 37,
'post_impressions': 447,
'post_story': 22,
'comment_count': 4,
'created_time': '03:11 AM, Sep 30, 2012',
'message': '30-09-12 \\u092a\\u094d\\u0930\\u093e\\u0924:\\u092e\\u0941\\u0930\\u0932\\u0940 \\u0913\\u0',
< built - in function id > : '471643246209744',
'status_type': 'status',
'likes_count': 20
} {
'post_engaged': 36,
'post_impressions': 423,
'post_story': 22,
'comment_count': 0,
'created_time': '03:04 AM, Sep 29, 2012',
'message': 'Essence: Sweet children, whenever you have time, earn the true income. Staying i',
< built - in function id > : '471274672913268',
'status_type': 'status',
'likes_count': 20
} {
'post_engaged': 16,
'text': 'Essence Of Murli 29-09-2012',
'post_story': 5,
'comment_count': 2,
'link': 'http:\\/\\/www.youtube.com\\/watch?v=i6OgmbRsJpg&feature=youtube_gdata_player',
'post_impressions': 291,
'created_time': '03:04 AM, Sep 29, 2012',
'message': 'Not available',
< built - in function id > : '213046588825668',
'status_type': 'video',
'likes_count': 5
}
但它引导我
TypeError : keys must be a string
我猜错误可能会弹出,因为dict包含一些元素,如:
<built-in function id>: '213046588825668'
有人可以指导我,我应该如何从字典中删除这些元素?
答案 0 :(得分:16)
您可以尝试像这样清理它:
for key in mydict.keys():
if type(key) is not str:
try:
mydict[str(key)] = mydict[key]
except:
try:
mydict[repr(key)] = mydict[key]
except:
pass
del mydict[key]
这将尝试将任何非字符串的键转换为字符串。任何无法转换为字符串或表示为字符串的键都将被删除。
答案 1 :(得分:8)
修改上面接受的答案,我编写了一个函数来处理任意深度的字典:
def stringify_keys(d):
"""Convert a dict's keys to strings if they are not."""
for key in d.keys():
# check inner dict
if isinstance(d[key], dict):
value = stringify_keys(d[key])
else:
value = d[key]
# convert nonstring to string if needed
if not isinstance(key, str):
try:
d[str(key)] = value
except Exception:
try:
d[repr(key)] = value
except Exception:
raise
# delete old key
del d[key]
return d
答案 2 :(得分:3)
我知道这是一个古老的问题,它已经有一个可以接受的答案,但是可惜,这个可以接受的答案完全是错误的。
这里的真正问题是生成字典的代码使用内置id
函数作为键而不是文字字符串"id"
作为键。因此,简单,明显且唯一正确的解决方案是从源头修复此错误:检查生成dict的代码,并将id
替换为"id"
。
答案 3 :(得分:0)
例如,诺兰·科纳韦(Nolan conaway)的答案给出了这个结果
{“ b'opening_hours'”:{“ b'1_from_hour'”:720,“ b'1_to_hour'”:1440, “ b'1_break_from_hour'”:1440,“ b'1_break_to_hour'”:1440, “ b'2_from_hour'”:720,“ b'2_to_hour'”:1440,“ b'2_break_from_hour'”: 1440,“ b'2_break_to_hour'”:1440,“ b'3_from_hour'”:720, “ b'3_to_hour'”:1440,“ b'3_break_from_hour'”:1440, “ b'3_break_to_hour'”:1440,“ b'4_from_hour'”:720,“ b'4_to_hour'”: 1440,“ b'4_break_from_hour'”:1440,“ b'4_break_to_hour'”:1440, “ b'5_from_hour'”:720,“ b'5_to_hour'”:1440,“ b'5_break_from_hour'”: 1440,“ b'5_break_to_hour'”:1440,“ b'6_from_hour'”:720, “ b'6_to_hour'”:1440,“ b'6_break_from_hour'”:1440, “ b'6_break_to_hour'”:1440,“ b'7_from_hour'”:720,“ b'7_to_hour'”: 1440,“ b'7_break_from_hour'”:1440,“ b'7_break_to_hour'”:1440}}
此修订版
导入时间 汇入 导入json 从phpserialize导入*
class Helpers:
def stringify_keys(self,d):
"""Convert a dict's keys to strings if they are not."""
for key in d.keys():
# check inner dict
if isinstance(d[key], dict):
value = Helpers().stringify_keys(d[key])
else:
value = d[key]
# convert nonstring to string if needed
if not isinstance(key, str):
try:
d[key.decode("utf-8")] = value
except Exception:
try:
d[repr(key)] = value
except Exception:
raise
# delete old key
del d[key]
return d
将提供此更干净的版本。
{“ opening_hours”:{“ 1_from_hour”:720,“ 1_to_hour”:1440, “ 1_break_from_hour”:1440,“ 1_break_to_hour”:1440,“ 2_from_hour”: 720,“ 2_to_hour”:1440,“ 2_break_from_hour”:1440,“ 2_break_to_hour”: 1440,“ 3_from_hour”:720,“ 3_to_hour”:1440,“ 3_break_from_hour”: 1440,“ 3_break_to_hour”:1440,“ 4_from_hour”:720,“ 4_to_hour”:1440, “ 4_break_from_hour”:1440,“ 4_break_to_hour”:1440,“ 5_from_hour”: 720,“ 5个小时”:1440,“ 5个小时起”:1440,“ 5个小时起”: 1440,“ 6_from_hour”:720,“ 6_to_hour”:1440,“ 6_break_from_hour”: 1440,“ 6_break_to_hour”:1440,“ 7_from_hour”:720,“ 7_to_hour”:1440, “ 7_break_from_hour”:1440,“ 7_break_to_hour”:1440}}
答案 4 :(得分:0)
也许这会有所帮助:
Makefile:439: recipe for target 'mysql.o' failed
make[2]: *** [mysql.o] Error 1
make[2]: Leaving directory '/home/user/Downloads/mysql-3.23.54a/client'
Makefile:281: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/user/Downloads/mysql-3.23.54a'
Makefile:223: recipe for target 'all' failed
make: *** [all] Error 2
答案 5 :(得分:-1)
理想情况下,您希望清除数据,以便遵守JSON支持的数据类型。
如果您只是想在序列化时从dict中取消/删除这些元素,则可以使用skipkeys
argument,说明可以在json.dump
section
如果skipkeys为true(默认值:False),则表示非 基本类型(str,int,float,bool,None)将被跳过,而不是 引发TypeError。
json.dumps(obj, skipkeys=True)
此解决方案更加简洁,允许标准库为您处理错误的密钥。
警告:您必须完全理解使用这种过分的方法的含义,因为这将导致不兼容的数据类型(如JSON密钥)的数据丢失。
答案 6 :(得分:-7)
也许这会对下一个人有所帮助:
strjson = json.dumps(str(dic).replace("'",'"'))