title: convert spark dataframe to aws glue dynamic frame
body: <p>I tried converting my spark dataframes to dynamic to output as glueparquet files but I'm getting the error </p>
  
  <blockquote>
    <p>'DataFrame' object has no attribute 'fromDF'"</p>
  </blockquote>
  
  <p>My code uses heavily spark dataframes. Is there a way to convert from spark dataframe to dynamic frame so I can write out as glueparquet?  If so could you please provide an example, and point out what I'm doing wrong below?</p>
  
  <p>code:</p>
  
  <pre><code># importing libraries
  
  import sys
  from awsglue.transforms import *
  from awsglue.utils import getResolvedOptions
  from pyspark.context import SparkContext
  from awsglue.context import GlueContext
  from awsglue.job import Job
  
  glueContext = GlueContext(SparkContext.getOrCreate())
  
  # updated 11/19/19 for error caused in error logging function
  
  spark = glueContext.spark_session
  
  from pyspark.sql import Window
  from pyspark.sql.functions import col
  from pyspark.sql.functions import first
  from pyspark.sql.functions  import date_format
  from pyspark.sql.functions import lit,StringType
  from pyspark.sql.types import *
  from pyspark.sql.functions import substring, length, min,when,format_number,dayofmonth,hour,dayofyear,month,year,weekofyear,date_format,unix_timestamp
  
  
  base_pth='s3://test/'
  
  bckt_pth1=base_pth+'test_write/glueparquet/'
  
  
  test_df=glueContext.create_dynamic_frame.from_catalog(
                   database='test_inventory',
                   table_name='inventory_tz_inventory').toDF()
  
  test_df.fromDF(test_df, glueContext, "test_nest")
  
  
  glueContext.write_dynamic_frame.from_options(frame = test_nest,
                                               connection_type = "s3",
                                               connection_options = {"path": bckt_pth1+'inventory'},
                                               format = "glueparquet")
  </code></pre>
  
  <p>error:</p>
  
  <pre><code>'DataFrame' object has no attribute 'fromDF'
  Traceback (most recent call last):
    File "/mnt/yarn/usercache/livy/appcache/application_1574556353910_0001/container_1574556353910_0001_01_000001/pyspark.zip/pyspark/sql/dataframe.py", line 1300, in __getattr__
      "'%s' object has no attribute '%s'" % (self.__class__.__name__, name))
  AttributeError: 'DataFrame' object has no attribute 'fromDF'
  </code></pre>