473,805 Members | 2,017 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Redirecting sys.stdin

Can anyone tell me what I am doing wrong with the following code? When
python 2.4 is embedded it crashes because of the assignment to stdin.

import sys;

class RedirectB:
def readline(self):
return "bar";

sys.stdin = RedirectB();

Thanks! Andy
Nov 15 '07 #1
1 1901
On Nov 15, 4:09 pm, a...@britishide as.com wrote:
Can anyone tell me what I am doing wrong with the following code? When
python 2.4 is embedded it crashes because of the assignment to stdin.

import sys;

class RedirectB:
def readline(self):
return "bar";

sys.stdin = RedirectB();
Seems the interpreter didn't like me using one class to redirect
stdout and stderr and another class to redirect stdin. Sigh.

Andy

Nov 15 '07 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
38741
by: Jan Knop | last post by:
Hello I am writing a Windows application where I need to redirect stdin, stdout and stderr from Python. to my application Is it a simple way of do it ? Has anyone done it using Winsock ?
5
3034
by: Jon Arter | last post by:
Hi Is is Possible to redirect the Python stdin in order to receive stdin commands from a file ? The time of redirection can last until exiting the Python and should be transparent for python it self. with regards Jon
1
2686
by: aurora | last post by:
On Windows (XP) with win32 extension installed, a Python script can be launched from the command line directly since the .py extension is associated with python. However it fails if the stdin is piped or redirected. Assume there is an echo.py that read from stdin and echo the input. Launching from command line directly, this echos input from keyboard:
0
2588
by: Christophe HELFER | last post by:
hi, I have some problem with redirecting input and output from a process. I can only use VB language (sorry...) Situation: I have to use the Cisco Network Registrar (DNS And DHCP server) command line utility as redirecting its input and output so I can interact with this one. This utility is similar to ftp under a win32 console. It proposes its own prompt after launching it.
6
4175
by: Christophe Helfer | last post by:
hi, I have some problem with redirecting input and output from a process. Situation: I have to use the Cisco Network Registrar (DNS And DHCP server) command line utility as redirecting its input and output so I can interact with this one. This utility is similar to ftp under a win32 console. It proposes its own prompt after launching it. What I want to do is:
3
2395
by: Jan Danielsson | last post by:
Hello, I thought I'd write a program to collect information from pf (packet filter) and insert it into a postgresql database for review on a web page. First I checked if this has been done already, and found that it has.. Using Perl and SQLite in a program called "hatchet". Well, I want to do it in Python, and I want to use postgresql. Anyway, upon looking in the hatchet Perl code I found this: open(IN, "$tcpdump -neltttr $log 2>&1...
8
5791
by: Morpheus | last post by:
I am trying to test a function that outputs text to the standard output, presumably using a cout call. I do not have access to the source, but need to test the output. Is this possible? I can technically create an executable that calls the function and then using a command prompt call the exexutable using the > output.txt redirector but I would prefer to do everything within the application itself. Is there a way for force an output...
1
2598
by: pp4175 | last post by:
Hello Everyone, I am currently working on writing a GUI wrapper for a Menu driven DOS Program. What I was looking on doing is redirecting stdout/stdin to a stream and read/write similar to a file. My issue is that I try to read from the stdout stream and never get anything only if the program has exited. Is there a way of reading the redirected stdout from a DOS program in say real time? I have tried the async (BeginOutputReadLine) and...
4
6468
by: DyslexicAnaboko | last post by:
Hello, I have a module that is part of larger project that is giving me trouble, so I setup an example. Brief ===== I simply want to open a text file and make the contents avaliable through stdin that way a bourne shell script I wrote will execute
0
9716
marktang
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...
0
9596
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,...
0
10604
Oralloy
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...
1
10361
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,...
0
9179
agi2029
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...
0
5536
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
5676
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
4316
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
3
3006
bsmnconsultancy
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...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.