csv
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
CSV reader behavior with None and empty string
The documentation suggests that what you want is not possible: To make it as easy as possible to interface with modules which implement the DB API, the value None is written as the empty string. This is in the documentation for the writer class, suggesting it is true for all dialects and is an intrinsic … Read more
module ‘pandas’ has no attribute ‘read_csv
Try renaming your csv.py to something else, like csv_test.py. Looks like pandas is being confused about what to import.
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
Python3: writing csv files
Documentation says that you should use open(‘eggs.csv’, ‘w’, newline=””) http://docs.python.org/py3k/library/csv.html#id2
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’)