# can not use pre-built binary

I am trying to use the pre-built binary for Ubuntu 15.10, sage-7.1-Ubuntu_15.10-x86_64.tar.bz2. I have extracted it with tar -xvf sage-7.1-Ubuntu_15.10-x86_64.tar.bz2. And it creates the folder SageMath. When I try to run ./sage for the first time from the extracted folder I have the result below. Is it normal? What can I do to run sage?

```
.../SageMath$ ./sage
File "/home/ste/Downloads/SageMath/relocate-once.py", line 12
print "relocate-once.py -d <destination>"
^
SyntaxError: Missing parentheses in call to 'print'
┌────────────────────────────────────────────────────────────────────┐
│ SageMath Version 7.1, Release Date: 2016-03-20 │
│ Type "notebook()" for the browser-based notebook interface. │
│ Type "help()" for help. │
└────────────────────────────────────────────────────────────────────┘
ERROR: The Sage installation tree has moved
from /home/buildbot/slave/binary_pkg/build/source/SageMath/jc4b6yulaujayb9sr94ia88eourzeqip0oidmas391yaj2
to /home/ste/Downloads/SageMath
...
```

Solved: I use python 3.5, but apparently, in order to run sage for the first time, you should use python 2.7