我在df中有一个名为diff_2的列，它的格式如下：

diff_2
Backward compatibility errors (16):
error at /Users, in API GET /studies/{studyId} the response property 'id' became optional for the status '200' [response-property-became-optional]. 

error at /Users, in API GET /projects/{projectId} the response property 'id' became optional for the status '200' [response-property-became-optional]. 

error at original_source=/Users continuous/tickets api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /projects/filters api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /expressions/bytes api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /continuous/filters api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /expressions/tickets api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /continuous/{continuousId}/tickets api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /continuous/{continuousId}/bytes api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /expressions/{expressionId}/bytes api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /studies/filters api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /expressions/{expressionId}/tickets api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /studies api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /projects api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /expressions/filters api path removed without deprecation [api-path-removed-without-deprecation]. 

error at original_source=/Users, in API GET /continuous/bytes api path removed without deprecation [api-path-removed-without-deprecation].

通过它我提取了content列，也就是方括号中的文字。还有count，它显示在列的第一行中的错误旁边。

content                                                                    count
Response Property Became Optional,API Path Removed Without Deprecation      16

但我想实现的是bot类型的更改计数，逗号分隔，所以不是计数为16，我希望它是这样的：

content                                                                    count
Response Property Became Optional,API Path Removed Without Deprecation,     2,14

我不知道该怎么做，任何建议或想法都会很有帮助。