7

Open a file for writing

 2 years ago
source link: https://www.codesd.com/item/open-a-file-for-writing.html
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
neoserver,ios ssh client

Open a file for writing

advertisements

When i try to open a file, even if it is not opened until that moment, it gives an error about that and therefore i cant write on it. Here is my python code:

try:
    myfile = open("SolvedFromFile.xls", "r+")
except IOError:
    mesaj=u"Açık olan nokta listesini kapatın!"
    wx.MessageBox(mesaj, u"UYARI")

What can cause that?

Thanks in advance.


e.g. you script has no rights to read...rarely happens on your own computer. most seen on productive environment.

or file not found(?)

Related Articles

php fopen can not open a file for writing on Mac OS X

I'm running php script updreading.php locally on my laptop (with Mac OS X 10.6.7). Here's the contents of updreading.php <?php $outFile = "examples-output.txt"; $out = fopen($outFile, 'w') or die("can't open write file"); ?> When

Unable to open the file for writing

I'm trying to create a log file like so: set logFilePath to (path to desktop folder as string) & "waiting.scpt.log" -- "/tmp/waiting.scpt.log" as text -- set logFilePath to (path to "temp" from user domain as text) &

In Python, how to open a file for writing, but do not create it if the file does not exist?

This question already has an answer here: python open built-in function: difference between modes a, a+, w, w+, and r+? 6 answers The file is a device under /dev. I don't want to mess things up so if the file does not exist, I should not create it. H

Exception in & ldquo; with & rdquo; empty block open file for writing

This simple code # This code will BLANK the file 'myfile'! with open('myfile', 'w') as file: raise Exception() rather than merely throwing an exception, deletes all data in "myfile", although no actual write operation is even attempted. This is

What is the best way to open a file for exclusive access to Python?

What is the most elegant way to solve this: open a file for reading, but only if it is not already opened for writing open a file for writing, but only if it is not already opened for reading or writing The built-in functions work like this >>> p

A class opens a Filestream for writing to the constructor. How can you ensure that the file stream is closed when the garbage collector goes into action?

I'm facing this problem through and java interview. They also ask: What is a better alternative in java to process files for writing while assuring that they are closed properly? My solution is to use try/finally statement in the constructor and my a

How to protect the open text file from writing to java

I tried to protect open txt file against writing. I found methods canRead() and canWrite() but they are not useful in my code. After closing file, changes unfortunatelly have been done. Here is a piece of my code: private void filesMethod(String dire

ifstream do not create and open a file for output

I am developing in C++ using NetBeans 6.9 on Ubuntu 11.04. I have declared the input and output file name strings and file streams thus ifstream fpInputFile, fpOutputFile; string inputFileName="", outputFileName=""; The input file name

Opening import file for module 'Swift' Permission denied

I'm a newbie at working in Xcode and swift. I was working on a iOS project on my macbook (while on holiday), and i've been using github version control, i've now returned to home and now working on my mac mini. Currently working in Xcode 6.3.1 and th

tmadmin psr response: can not get a temporary file for writing

i've got a problem with my local tuxedo instalation. My servers and services works fine but when i try to list them using psr (printserver) or printclient tmadmin response: pg: Can't get temp file for writing. Can you tell me where can i find possibl

Segmentation failure when opening a .txt file for writing

I am trying to open a .txt file in a specific path for writing. I wan't to override the first k characters in the .txt file Example: File before overriding: 0123456789s File after overriding: tonytannous However, I am getting a segmentation fault. I

Obtain a permission denied an error while attempting to create file for writing to VBScript

I keep getting permission denied when trying to open the second file here for writing. I know the first file opens fine as I can write it out to the screen and I have set write permissions for users. Is this so simple that I'm being blinded by it???

Fatal error VC ++ LNK1168: Can not open filename.exe for writing

suddenly my visual studio express 2010 c++ stopped rebuilding my project. When I first hit F7 the project builds and runs fine (heck, it's a hello world example). Then I make some changes and hit F7 again, then I get: 1>LINK : fatal error LNK1168: ca

The easiest way to create a file for writing to a function?

I have a function like so: void my_func(unordered_map<std::string, std::string> arg){ //Create/open file object on first call and append to file on every call //Stuff } and inside this function I wish to write to a file. How can I achieve this witho

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK