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From "Andrew Davidson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-23878) unable to import col() or lit()
Date Fri, 06 Apr 2018 15:57:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-23878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16428494#comment-16428494
] 

Andrew Davidson commented on SPARK-23878:
-----------------------------------------

Hi Hyukjin

many thanks! I am not a python expert. I did not know about dynamic name spaces. Did a little
googling

to configure dynamic namespace in eclipse

preferences ->pydev -> interpreter ->python interpreters 

add pyspark to 'forced build'

 

 

I attached a screen shot. Any idea how this can be added to the documentation so others do
not have to waste times on this detail

p.s. you sent me a link to "support vitualenv in PySpark" https://issues.apache.org/jira/browse/SPARK-13587 

Once I made the pydev configuration change I am able to use pyspark in a virtualenv. I use
this environment in eclipse pydev IDE with out any problems. I am able to run Juypter notebooks
with out an problem

 

> unable to import col() or lit()
> -------------------------------
>
>                 Key: SPARK-23878
>                 URL: https://issues.apache.org/jira/browse/SPARK-23878
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 2.3.0
>         Environment: eclipse 4.7.3
> pyDev 6.3.2
> pyspark==2.3.0
>            Reporter: Andrew Davidson
>            Priority: Major
>         Attachments: eclipsePyDevPySparkConfig.png
>
>
> I have some code I am moving from a jupyter notebook to separate python modules. My notebook
uses col() and list() and works fine
> when I try to work with module files in my IDE I get the following errors. I am also
not able to run my unit tests.
> {color:#FF0000}Description Resource Path Location Type{color}
> {color:#FF0000}Unresolved import: lit load.py /adt_pyDevProj/src/automatedDataTranslation
line 22 PyDev Problem{color}
> {color:#FF0000}Description Resource Path Location Type{color}
> {color:#FF0000}Unresolved import: col load.py /adt_pyDevProj/src/automatedDataTranslation
line 21 PyDev Problem{color}
> I suspect that when you run pyspark it is generating the col and lit functions?
> I found a discription of the problem @ [https://stackoverflow.com/questions/40163106/cannot-find-col-function-in-pyspark] I
do not understand how to make this work in my IDE. I am not running pyspark just an editor
> is there some sort of workaround or replacement for these missing functions?
>  
>  



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