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by: simon place |
last post by:
is the code below meant to produce rubbish?, i had expected an exception.
f=file('readme.txt','w')
f.write(' ')
f.read()
( PythonWin 2.3 (#46, Jul 29 2003, 18:54:32) on
win32. )
I got this while experimenting, trying to figure out the file objects modes,
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by: pxlpluker |
last post by:
What exactly does the underlined text mean. w & a obviously mean you are
going to update the file.
So what does the + mean on w+ & a+ mean?
Also please could someone explain w+ truncating the file.
I may just be dense so please be patient :)
-------------------------------------------------------------------------
file( filename ] )
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by: Phil S |
last post by:
When opening a file in two different threads at the same time, it will cause
an exception if the FileShare modes are incompatible with the FileAccess
modes.
Is there some way to test whether access will be allowed to the file without
having to try opening it and get an exception?
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by: Jakob Bieling |
last post by:
Hi,
I was wondering why there are file access modes, which you have to
specify when opening the file. I am specifically talking about the 'read',
'read-write' and 'write' distinction. As far as I can tell, it only makes
sure, you (the programmer) do not accidently write to it when you opened it
for reading. To me, this seems like another one of those things that just
make life harder.
I am asking this, because I am writing a wrapper...
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by: George |
last post by:
Hi,
I am re-writing part of my application using C#. This application starts
another process which execute a "legacy" program. This legacy program writes
to a log file and before it ends, it writes a specific string to the log file.
My original program (MKS Toolkit shell program) which keeps running "grep"
checking the "exit string" on the "log files". There are no file sharing
problem.
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by: erikcw |
last post by:
Hi all,
I've created a script that reads in a file, replaces some data (regex),
then writes the new data back to the file.
At first I was convinced that "w+" was the tool for the job. But now
I'm finding that the contents of the file are deleted (so I can't read
the data in).
f = open('_i_defines.php', 'w+')
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by: Check2011 |
last post by:
Can someone explane the effect here:
http://www.web.com/website-products/site-builder.aspx
I saw this effect on web.com and I totally love it. I love how clicking on one image causes a totally new section with image and html data to be displayed. But being a freshman to javascript, I have no clue how to achieve that effect.
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by: HMS Surprise |
last post by:
After reading a file is it possible to write to it without first
closing it? I tried opening with 'rw' access and re-winding. This does
not seem to work unless comments are removed.
Also, does close force a flush?
Thanks,
jh
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by: rory |
last post by:
I can't seem to append a string to the end of a binary file. I'm using
the following code:
fstream outFile("test.exe", ios::in | ios::out | ios::binary |
ios::ate | ios::app)
outFile.write("teststring", 10);
outFile.close();
If I leave out the ios::ate and ios::app modes my string is written to
the start of the file as I'd expect but I want to write the data to
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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