attributeError:'module' object has no attribute 'MXIndexedRecordIO

[Daliben]

Hi ,
I have used im2rec.py to convert "caltech101 images" into record io format:

I have created "caltech.lst" succesfully using
os.system('python %s/tools/im2rec.py --list=1 --recursive=1 --shuffle=1 data/caltech data/101_ObjectCategories'%MXNET_HOME)
Then, when I run this :
os.system("python %s/tools/im2rec.py --train-ratio=0.8 --test-ratio=0.2 --num-thread=4 --pass-through=1 data/caltech data/101_ObjectCategories"%MXNET_HOME)
I have this error : attributeErroe:'module' object has no attribute 'MXIndexedRecordIO'
Please, someone has an idea to fix this error ?
Thanks in advance.

Environment info

Operating System:Windows 8.1
Package used (Python/R/Scala/Julia): Python
MXNet version:0.9.5
Python version and distribution:2.7