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by: Patrick L. Nolan |
last post by:
We have a python+Tkinter program that works properly on
Linux, but when moved to Windows (XP) it behaves in a
strange way. There's a section like this:
(child_out, child_in) = popen2.popen4(cmd)
line = child_out.readline()
while line:
do_something_with(line)
line = child_out.readline()
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by: Patrick L. Nolan |
last post by:
We have an application that works on Linux. It has to be ported
to Windows XP, and there's one bug that's driving me crazy.
There's a number-crunching program written in C++. It is invoked
by a Tkinter python script. The script uses the threading
module to separate out the heavy processing. The worker thread
uses popen4 to run the C++ program and capture its standard
output. This output is sent to the master thread through a
queue...
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by: Vivien Mallet |
last post by:
Hello,
I use popen2.Popen4 and I experienced problems with it. Let me show you with
an example. The following script is called "lines" (it prints lines of
'X'):
---------------------
#!/usr/bin/env python
import sys
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by: Jim |
last post by:
Hi, I'm using popen2.Popen4 and I'm curious what exceptions it could
raise
for example
p = popen2.POpen4( 'command string' )
i'm assuming would only raise OSError exceptions if something went
wrong internally with popen.
and also, for read operations like:
p.fromchild.read()
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by: Roman Yakovenko |
last post by:
Hi. May be I found bug may be not, but I definitely could not find answer in documentation and GOOGLE.
Environment: Windows XP and Python 2.3
Description:
I have program that returns negative numbers as errors
int main()
{ return -1; }
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by: billie |
last post by:
Hi all. I'm trying to execute system commands and capture the output by
using popen4:
stdout example:
>>>exec_cmd = popen2.popen4("echo hello!")
>>>output = exec_cmd.read()
hello
stderr example:
>>>exec_cmd = popen2.popen4("echobv hello!")
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by: Grant Edwards |
last post by:
I'm having problems calling the Popen4 object wait() method
from a thread. The folloing program produces an error on some
machines (but seems to work on others)
------------------------------8<------------------------------
import time
import threading
import popen2
def monitorThread():
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by: micklee74 |
last post by:
hi
i have to execute some SQL statements against a database using a SQL
client
i want to use the os.popen4 module
can someone correct the way i use os.popen4?
thanks
fin = "select * from some_table" #sql statement
client = "osql server user password" #sql client syntax
fin, fout = os.popen4(client)
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by: julian |
last post by:
Hi all,
I know it's a kind of bizarre question but here I go: I want to
execute an script using popen4. This script executes a command in turn
using popen4 too. The first one throws a 256 exit code.
Any suggestions?
Thanks
J.
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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: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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