csvfilter | Command-line tool for manipulating CSV data | CSV Processing library
kandi X-RAY | csvfilter Summary
kandi X-RAY | csvfilter Summary
Command-line tool for manipulating CSV data
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Top functions reviewed by kandi - BETA
- Process the CSV data .
- Initialize the QuerySet .
- Returns True if row is valid .
- Add a validator .
csvfilter Key Features
csvfilter Examples and Code Snippets
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Trending Discussions on csvfilter
QUESTION
I'm trying to take a large csv file (800,000 rows, 160 columns). I'm trying to remove select columns, but keep all rows. I've tried two different methods--the standard cut command, and csvfilter--but neither of them will return all rows. In fact, they both return different numbers of rows, with cut returning a dozen or so more than csvfilter, but both a little over 4000.
I've looked at the original csv to try to see what might be making it choke, but I can't see anything: no quote marks in the row, no special characters.
Can anyone suggest a reliable method to remove columns from a csv or a way to more effectively troubleshoot csvfilter and/or cut? I'm mostly working on a Mac, but can work on Windows as well.
...ANSWER
Answered 2021-Dec-21 at 21:05I recommend GoCSV's select command. It's already built for macOS/darwin, so go straight to the latest release and downloading the binary of your choosing.
I'm not sure why csvfilter would truncate your file. I'm especially skeptical that cut would eliminate any line, but I haven't tried 800K lines before.
Testing cut; comparing GoCSVHere's a Python script to generate a CSV, large.csv, that is 800_000 rows by 160 columns:
QUESTION
I've been given a csv file on which I need to perform certain cleanup tasks using pyspark. Before the cleanup, I'm doing some schema validation check. Below is my code.
...ANSWER
Answered 2021-Mar-02 at 12:10malformed_rows
is the internal corrupt record column which is named by default _corrupt_record
and you renamed with:
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Install csvfilter
You can use csvfilter like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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