from __future__ imports must occur at the beginning of the file

I am using python 2.7 and when importing other packages from future than print_function, the temp_model.py file wraps the imports in a try and except block. The first lines in temp_model.py:

#coding=utf-8

from __future__ import print_function

try:
    from __future__ import unicode_literals
except:
    pass

[token-cjg]

Code in a jupyter notebook such as:

from __future__ import absolute_import, division, print_function

can be rewritten as:

exec('from __future__ import absolute_import, division, print_function')

[zhangyi6]

I got the same problem, did you gays solve this with the seperated python file?