Append '..' to path setting.
This package append string '..' to the path setting when being imported.
pip install path_parent
import path_parent.p # append '..' to path setting;
import path_parent.pp # append '../..' to path setting;
import path_parent.ppp # append '../../..' to path setting;
import path_parent # nothing appended;
path_parent.clear("../..") # remove only '../..';
path_parent.clear("..\..\..") # nothing removed, not backslash;
path_parent.clear() # remove all '..', '../..' and '../../..';