Python：如何从字符串中删除数字的引号

Question

我有一个如下的python字符串：

"""
{id: 'id_0_4', value: '8450223051', name: 'XAD3', parent: 'id_0'},
{id: 'id_0_5', value: '509071269', name: 'ABSD', parent: 'id_0'}
"""

从字符串中，我想删除value后数字的单引号。在

如何编写一个只检测这些数字并替换它们周围的引号的正则表达式？在

Answer 1

捕获组中的号码，重新插入该组：

>>> import re
>>> s = """{id: 'id_0_4', value: '8450223051', name: 'XAD3', parent: 'id_0'}, {id: 'id_0_5', value: '509071269', name: 'ABSD', parent: 'id_0'}"""
>>> re.sub("'(\d+)'", r'\1', s)
"{id: 'id_0_4', value: 8450223051, name: 'XAD3', parent: 'id_0'}, {id: 'id_0_5', value: 509071269, name: 'ABSD', parent: 'id_0'}"

或者，如果这必须特定于“value”后面的数字：

^{pr2}$