Automatically creating directories with file output [duplicate]

In Python 3.2+, using the APIs requested by the OP, you can elegantly do the following: import os filename = “/foo/bar/baz.txt” os.makedirs(os.path.dirname(filename), exist_ok=True) with open(filename, “w”) as f: f.write(“FOOBAR”) With the Pathlib module (introduced in Python 3.4), there is an alternate syntax (thanks David258): from pathlib import Path output_file = Path(“/foo/bar/baz.txt”) output_file.parent.mkdir(exist_ok=True, parents=True) output_file.write_text(“FOOBAR”) In … Read more

Java PrintWriter not working

Close your PrintWriter in a finally block to flush it and to reclaim resources public void writeToFile(String fileName) { // **** Note that pW must be declared before the try block PrintWriter pW = null; try { pW = new PrintWriter(new File(fileName)); for (int x = 0; x < 25; x++) { for (int y … Read more

How to print both to stdout and file in C

Fortunately, you don’t need to. You just want to use the v variants of printf and fprintf that take a va_list instead of your passing arguments directly: void tee(FILE *f, char const *fmt, …) { va_list ap; va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); va_start(ap, fmt); vfprintf(f, fmt, ap); va_end(ap); }

Java read file and store text in an array

Stored as strings: public class ReadTemps { public static void main(String[] args) throws IOException { // TODO code application logic here // // read KeyWestTemp.txt // create token1 String token1 = “”; // for-each loop for calculating heat index of May – October // create Scanner inFile1 Scanner inFile1 = new Scanner(new File(“KeyWestTemp.txt”)).useDelimiter(“,\\s*”); // Original … Read more

Python – How to check if a file is used by another application?

Will your python script desire to open the file for writing or for reading? Is the legacy application opening and closing the file between writes, or does it keep it open? It is extremely important that we understand what the legacy application is doing, and what your python script is attempting to achieve. This area … Read more

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