python - How to programmatically replace PYTHONPATH -

is there way programmatically replace pythonpath ? should add want run decode.py spark-submit

i have following directory structure @ some-path:

decode.py decode2.py crfsuite/     crfsuite.py     _crfsuite.so     libcqdb-0.12.so     libcrfsuite-0.12.so 

decode.py:

import crfsuite if __name__ == '__main__':     tagger = crfsuite.tagger() 

the following command works:

pythonpath=./crfsuite ld_library_path=./crfsuite python decode.py 

or if copied crfsuite/crfsuite.py , crfsuite/_crfsuite.so local directory (where decode.py exists), following works:

ld_library_path=./crfsuite python decode.py 

is there way programmatically add .py , .so files? came decode2.py:

from ctypes import * import imp  if __name__ == '__main__':     cdll.loadlibrary('<some-path>/crfsuite/_crfsuite.so')     imp.load_source('crfsuite', '<some-path>/crfsuite/crfsuite.py')     tagger = crfsuite.tagger() 

executing:

ld_library_path=./crfsuite python decode2.py                                  traceback (most recent call last):   file "decode2.py", line 6, in <module>     imp.load_source('crfsuite', '<some-path>/crfsuite/crfsuite.py')   file "<some-path>/crfsuite/crfsuite.py", line 17, in <module>     _crfsuite = swig_import_helper()   file "<some-path>/crfsuite/crfsuite.py", line 16, in swig_import_helper     return importlib.import_module('_crfsuite')   file "sw/anaconda2/lib/python2.7/importli/__init__.py", line 37, in import_module     __import__(name) importerror: no module named _crfsuite 

pythonpath env. variable contents copied in sys.path module, before importing can add paths instance:

import sys sys.path.append("/path/to/your/module") # your_module.py found in /path/to/your/module import your_module 

note can remove paths using sys.path.remove if pythonpath overrides system lib , don't want to.