What's the difference between these two import syntaxes in python? -

~/     a/         __init__.py         a1.py         a2.py

a1.py:

from a2 import y

a2.py

import sys sys.path.append('/home/shellfly/') import a1  # raise importerror a.a1 import c # normal

what's difference between:

 package import module

and

 module import var"

and why did above import expression throw exception?

i got exception in django, app folder, in pythonpath, , have add work directory test code

from import a1 still inside a folder. a2.py expect /a/a/a1.py

eclipse throws error; unresolved import a2, it's not in file's absolute path.

Detect