PySpark LogisticRegressionWithLBFGS导入错误

Question

I am trying to use the pysoark LogisticRegression library.Below is part of my code:

    from pyspark.mllib.linalg import Vectors
    from pyspark.mllib.regression import LabeledPoint
    from pyspark.mllib.classification import LogisticRegressionWithLBFGS, LogisticRegressionModel,   LogisticRegressionWithSGD
    from pyspark import SparkContext

I am getting the error:

    Traceback (most recent call last):
    File "LogisticRegression.py", line 3, in <module> 
    from pyspark.mllib.classification import    LogisticRegressionWithLBFGS, LogisticRegressionModel, LogisticRegressionWithSGD
    ImportError: cannot import name LogisticRegressionWithLBFGS

Is there a circular import dependency here?I am using Python 2.7.9

Answer 1

I'd say your version of pyspark is outdated.

Try :

pip freeze | grep pyspark

LogisticRegressionWithLBFGS class was introduced in pyspark 1.2.0.

To upgrade your version of pyspark you can use pip as well :

pip install pyspark --upgrade

Edit :

@ShuaiYuan comment's seems right and you can't use pip for pyspark.