readfile

I have tried passing the dtype parameter with read_csv as dtype={n: pandas.Categorical} but this does not work properly (the result is an Object). The manual is unclear . In version 0.19.0 you can use parameter dtype='category' in read_csv : data = 'col1,col2,col3\na,b,1\na,b,2\nc,d,3' df = pd.read_csv(pd.compat.StringIO(data), dtype='category') print (df) col1 col2 col3 0 a b 1 1 a b 2 2 c d 3 print (df.dtypes) col1 category col2 category col3 category dtype: object If want specify column for category use dtype with dictionary: df = pd.read_csv(pd.compat.StringIO(data), dtype={'col1':

I need some help: I'm making a Supermarket simulation on Java, but I've got one problem, I have a text file (Stock.txt) where I have all the supermarket stock on it for example: 0-Bakery-Chocolate Cake-$12.5-250 1-Meat-Premium Steak-$2.6-120 2-Seafood-Tuna - $1.2-14 ... Where the first number is the "id" for the product, next is the department the product belongs, third is the name of the product, the next thing is the price, and the last number is how much pieces of the product the stock has. I have this class: public class Product { protected String name; protected double price; protected

I am relatively new to Node.js and have been looking around but cannot find a solution. I did check the require javascript file and it does not seem to have a method for "readFileSync". Perhaps I don't have a proper require file? I had a hard time finding this file, everywhere talked about it but most people did not post where to get it. I installed Node.js and have the require.js file. My current code is like this: fs = require(['require'], function (foo) { //foo is now loaded. }); console.log("\n *STARTING* \n"); // Get content from file var contents = fs.readFileSync("sliderImages", 'utf8')

I'm trying to get my head around synchronous vs asynchronous in Node.js, in particular for reading an html file. In a request handler, the synchronous version that i'm using, which works is the following: var fs = require("fs"); var filename = "./index.html"; var buf = fs.readFileSync(filename, "utf8"); function start(resp) { resp.writeHead(200, {"Content-type":"text/html"}); resp.write(buf); resp.end(); } exports.start=start; What would be the version using readFile() ?? I understand that readFile is asynchronous so theoretically I should wait that the entire file is read before rendering it,

I'm trying to read an image from client side encoded in base64. How to read with nodejs? My code: // add to buffer base64 image var encondedImage = new Buffer(image.name, 'base64'); fs.readFile(encondedImage, "base64", function(err, buffer){ if ( err ) { console.log('In read file') console.log(err) } else { // check err lwip.open(buffer, 'jpg', function(err, image){ console.log('in open') if ( err ) console.log(err) if ( image ) console.log(image) // check 'err'. use 'image'. // image.resize(...), etc. }); } }) But, I got this error: In read file [Error: Path must be a string without null

I need to read file in ML (SLMNJ) and save it in some structures. I need to read some data that points to graph declaration: [( 1 , 2 , 13 ),( 2 , 3 , 3 ),( 2 , 4 , 8 ),( 2 , 5 , 4 ),( 3 , 1 , 5 ),( 3 , 4 , 1 ),( 4 , 6 , 5 ),( 5 , 5 , 5 ),( 6 , 4 , 6 )] (first number: name of the node , secend number: name of connected node , third number weight for this mane (each () show one mane ) ) for expamle this is test input how to read file and which structure to save it for reading from file follow this to list of string per line : val infile = "c:/input.txt" ; fun readlist (infile : string) = let

I have this code which lists the files in the directory and parses each one of them with my function. paths = [] for filename in os.listdir(r"C:\Program Files (x86)\Folder\Folder"): with open(filename) as f: paths.append(parse_file(f)) I am getting the error: File "find.py", line 21, in <module> with open(filename) as f: IOError: [Errno 2] No such file or directory: 'file.txt' This error shows that it saw file.txt because it exist in the folder I specified in os.listdir , I have many more files there. If I delete file.txt it will show the error on a different file. I also tried to move the

I am trying to get this code to work but for some reason, all the echo's are able to output correct content, but the headers don't seem to want to force the download of my document. What follows is the file I am trying to build for file downloads. It is set to input code like this: downloader.php?f=13&t=doc to download a file that is named 201-xxx.doc or 201-xxx.pdf from one of two folders depending on the users privileges. All the logic works up to the header info at the bottom. If I comment out the header content type and the header content disposition, then it will read the file into the