I retrive this output with a curl command:

```
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><restQueuedBuild planKey="project-build001" buildNumber="123" buildResultKey="project-build001-123"><triggerReason>Manual build</triggerReason><link href="https://mybamboo.server.com/rest/api/latest/result/project-build001-123" rel="self"/></restQueuedBuild>

```

**How to get** in buildNumber volue **123** in python?