How do I read and write CSV files?

Here are some minimal complete examples how to read CSV files and how to write CSV files with Python. Pure Python: import csv # Define data data = [ (1, “A towel,”, 1.0), (42, ” it says, “, 2.0), (1337, “is about the most “, -1), (0, “massively useful thing “, 123), (-2, “an interstellar … Read more

Upload CSV file to SQL server

1st off, You don’t need programming stuff. You can directly upload CSV files into SQL Database with SQL management tools. However, if you really need do it through programming, Just read below. Personally, I think this approach is the most efficient and easiest way to do through programming. In general, you can achieve it in … Read more

CSV to object model mapping

For the specific data shown in your question… var yourData = File.ReadAllLines(“yourFile.csv”) .Skip(1) .Select(x => x.Split(‘,’)) .Select(x => new { Plant = x[0], Material = x[1], Density = double.Parse(x[2]), StorageLocation = int.Parse(x[3]) }); If you already have a type declared for your data then you can use that rather than the anonymous type. Note that … Read more

Use Scala parser combinator to parse CSV files

What you missed is whitespace. I threw in a couple bonus improvements. import scala.util.parsing.combinator._ object CSV extends RegexParsers { override protected val whiteSpace = “””[ \t]”””.r def COMMA = “,” def DQUOTE = “\”” def DQUOTE2 = “\”\”” ^^ { case _ => “\”” } def CR = “\r” def LF = “\n” def CRLF … Read more

Pandas ParserError EOF character when reading multiple csv files to HDF5

I had a similar problem. The line listed with the ‘EOF inside string’ had a string that contained within it a single quote mark (‘). When I added the option quoting=csv.QUOTE_NONE it fixed my problem. For example: import csv df = pd.read_csv(csvfile, header = None, delimiter=”\t”, quoting=csv.QUOTE_NONE, encoding=’utf-8’)