#!/usr/bin/python

import sys, os  
LIB_DIR = "/home/maria/Documents/workspace/git/FROGS/lib"
sys.path.append(LIB_DIR)
if os.getenv('PYTHONPATH') is None: os.environ['PYTHONPATH'] = LIB_DIR
else: os.environ['PYTHONPATH'] = os.environ['PYTHONPATH'] + os.pathsep + LIB_DIR

from frogsBiom import *

biom = BiomIO.from_json("chaillou2.biom")
for sample_name in biom.get_samples_names():
	biom.columns[biom.find_idx("sample", sample_name)]["metadata"] = None

BiomIO.write("chaillou3.biom", biom)