<s> import os <EOL> prefix = os . environ [ '<STR_LIT>' ] <EOL> fn = os . path . join ( prefix , '<STR_LIT>' ) <EOL> with open ( fn , '<STR_LIT:wb>' ) as f : <EOL> f . write ( prefix . encode ( '<STR_LIT:utf-8>' ) + b'<STR_LIT:\x00>' ) </s>
