如何将RDD转换为Dataframe

Question

如何将 RDD 转换为 pyspark Dataframe -

hadoopexam = spark.sparkContext.parallelize(["mumbai",[("bigdata",1),("cloud",2)],
                                        "pune",[("bigdata",1),("python",2)],
                                        "punjab",[("mobile",1),("networking",2),("science",2)],
                                        "up",[("networking",1),("database",2)]
                                      ])

我需要结果如下所示 -

    mumbai    [("bigdata",1),("cloud",2)]


    pune      [("bigdata",1),("python",2)]


    punjab    [("mobile",1),("networking",2),("science",2)]


    banglore  [("networking",1),("database",2)]