C2RCC for Sentinel 3 OLCI in pytthon

Hi everyone,
I used C2RCC batch processing OLCI data based on python platform, but there are some INFO and Warning, want to know why this is. Here is the code, and errors in python. This code can handle all the data, but finally read the data after all 0 or NAN, such as I want to read rrs_1 or rhown_1. If you can answer I will be grateful!

import os
import time
import datetime
from subprocess import call
filepath1=‘H:/Data/’ #Original data downloaded from website
outputdir=‘H:/C2RCC/’ #C2RCC atmospheric corrected data
filelist1=os.listdir(filepath1)
inputlist=[]
outputlist=[]
for fl1 in filelist1:
outfile1=outputdir+fl1+‘_C2RCC.nc’
if os.path.exists(outfile1):
continue
else:
outputlist.append(outfile1)
filepath2=filepath1+fl1
filelist2=os.listdir(filepath2)
filepath3=filepath2+‘/’+filelist2[0]
filelist3=os.listdir(filepath3)
for fl3 in filelist3:
fl3l=fl3.split(‘.’)
if fl3l[-1]==‘xml’:
filepath4=filepath3+‘/’+fl3
inputlist.append(filepath4)
else:
continue
for inputfile,outputfile in zip(inputlist,outputlist):
try:
print(‘Start processing-----------’+str(datetime.datetime.now()))
print(inputfile)
cmdline=‘gpt c2rcc.olci -SsourceProduct=“’+inputfile+‘” -PoutputAsRrs=“true” -t “’+outputfile+‘” -f “NetCDF4-BEAM”’
call(cmdline)
print(‘End of processing-----------’+str(datetime.datetime.now()))
print(‘\n\n’)
except:
print(inputfile+‘Processing failed’)
continue

I:/Sentinel-3/all/S3A_OL_1_EFR____20200726T040207_20200726T040507_20200727T081400_0179_061_047_2340_LN1_O_NT_002/S3A_OL_1_EFR____20200726T040207_20200726T040507_20200727T081400_0179_061_047_2340_LN1_O_NT_002.SEN3/xfdumanifest.xml
INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: GDAL not found on system. Internal GDAL 3.2.1 from distribution will be used. (f0)
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.2.1 set to be used by SNAP.
SEVERE: org.esa.s2tbx.dataio.gdal.GDALLoader: Failed to initialize GDAL native drivers. GDAL readers and writers were disabled.Illegal char <:> at index 35: E:\anaconda\Library\mingw-w64\bin D:\Anaconda\Library\usr\bin
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.2.1 set to be used by SNAP.
WARNING: org.esa.s3tbx.c2rcc.olci.C2rccOlciOperator$Spi: TSMfakBpart and TSMfakBwit are deprecated parameters and shall not be used anymore.Please use TSMfac and TSMexp instead. Please consult the help for more information.
INFO: org.esa.s3tbx.c2rcc.olci.C2rccOlciOperator: c2rcc initial tile : null, configured tile: java.awt.Dimension[width=1217,height=1023]
INFO: org.hsqldb.persist.Logger: dataFileCache open start
Executing operator…