- import re 
-   
- s = 'blahblah "key":"value","TargetCRS": "Target","TargetCRScode": "vertical Code","zzz": "aaaa" sadzxc "sss"' 
- r = re.compile(r'''"key"\s*:\s*"([^"]*)"''') 
-   
- match = r.search(s) 
- if match: 
- 	print match.group(1) 
				aW1wb3J0IHJlCgpzID0gJ2JsYWhibGFoICJrZXkiOiJ2YWx1ZSIsIlRhcmdldENSUyI6ICJUYXJnZXQiLCJUYXJnZXRDUlNjb2RlIjogInZlcnRpY2FsIENvZGUiLCJ6enoiOiAiYWFhYSIgc2FkenhjICJzc3MiJwpyID0gcmUuY29tcGlsZShyJycnImtleSJccyo6XHMqIihbXiJdKikiJycnKQoKbWF0Y2ggPSByLnNlYXJjaChzKQppZiBtYXRjaDoKCXByaW50IG1hdGNoLmdyb3VwKDEp