Hi All,
I am porting Perl script to Python script. Everything works fines until
calling os.system().
In my script, a number of DOS-commands will be executed.
for new_folder, old_folder in folder_array:
os.system('MD "' + new_folder + '"');
os.system('XCOP Y "' + old_folder + '" "' + new_folder + '"');
In Perl, all outputs will be printed in console directly.
But in Python, outputs will be printed in separated cmd-windows.
Is it possible to prevent so many cmd-windows to be opened and let all
output be printed direct in Python shell?
best regards ^^)
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\ 6 2838
On Dec 28, 12:57 pm, stanleyxu <no_re...@micro soft.comwrote:
To note this problem occurs when debugging script in IDLE editor.
When I double click on my_script.py, all outputs will be printed in one
console.
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\
Why are you using os.system for these commands in the first place? You
should be using the os and shutil modules instead as they would be
more cross-platform friendly.
Something like this:
# untested
for new_folder, old_folder in folder_array:
os.mkdir(new_fo lder)
shutil.copytree (old_folder, new_folder)
Adjust the path as needed in the mkdir call.
See shutil's docs for more info: http://docs.python.org/lib/module-shutil.html
And here's some folder manipulation docs: http://effbot.org/librarybook/os.htm
By the by, the subprocess module is supposed to be used in place of
the os.system and os.popen* calls: http://docs.python.org/lib/module-subprocess.html
Mike ky******@gmail. com wrote:
On Dec 28, 12:57 pm, stanleyxu <no_re...@micro soft.comwrote:
>To note this problem occurs when debugging script in IDLE editor. When I double click on my_script.py, all outputs will be printed in one console.
-- ___ oo // \\ (_,\/ \_/ \ Xu, Qian \ \_/_\_/ stanleyxu2005 /_/ \_\
Why are you using os.system for these commands in the first place? You
should be using the os and shutil modules instead as they would be
more cross-platform friendly.
Something like this:
# untested
for new_folder, old_folder in folder_array:
os.mkdir(new_fo lder)
shutil.copytree (old_folder, new_folder)
Adjust the path as needed in the mkdir call.
See shutil's docs for more info: http://docs.python.org/lib/module-shutil.html
And here's some folder manipulation docs: http://effbot.org/librarybook/os.htm
By the by, the subprocess module is supposed to be used in place of
the os.system and os.popen* calls: http://docs.python.org/lib/module-subprocess.html
Mike
Thanks Mike,
you have provided another option.
But my question has not been answered yet. The reason, why I use
os.system(), is that I want to avoid accident file deletion by writing a
script. My real script looks like:
# 1. Funtion to execute a command in DOS-console
def execCommand(cmd ):
if DEBUG_MODE:
print 'DOS' + cmd;
else:
os.system(cmd);
# 2.1 Creates temp folder. Removes it first, if it exists.
if os.path.exists( tmp_folder):
execCommand('RD "' + tmp_folder + '" /S /Q');
execCommand('MD "' + tmp_folder + '"');
# 2.2 Copies all files to the temp folder, that are going to be put in
package.
for source_folder, dest_folder in folders_array:
if not os.path.exists( dest_folder):
execCommand('MD "' + dest_folder + '"');
execCommand('XC OPY \"' + source_folder + '" "' + dest_folder + '" /Y');
The benefit is that, when I set DEBUG_MODE=True , I can see what will be
executed. So that I can make sure that my script will not delete any
other important files by accident.
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\
On Dec 28, 1:52 pm, stanleyxu <no_re...@micro soft.comwrote:
Hi All,
I am porting Perl script to Python script. Everything works fines until
calling os.system().
In my script, a number of DOS-commands will be executed.
for new_folder, old_folder in folder_array:
os.system('MD "' + new_folder + '"');
os.system('XCOP Y "' + old_folder + '" "' + new_folder + '"');
In Perl, all outputs will be printed in console directly.
But in Python, outputs will be printed in separated cmd-windows.
Is it possible to prevent so many cmd-windows to be opened and let all
output be printed direct in Python shell?
Consider using the subprocess module instead. It has more options
available than os.system, including I/O redirection, which seems to be
what you need.
In IDLE, you'll have to capture the output of the programs and print
it yourself, since you can't (AFAIK) run a DOS shell in an IDLE
window. Untested:
import subprocess
output = subprocess.Pope n('MD "' + new_folder + '"', shell=True,
stdout=subproce ss.PIPE, stderr=subproce ss.STDOUT).comm unicate()[0]
print output
Carl Banks
On Dec 28, 1:32 pm, stanleyxu <no_re...@micro soft.comwrote:
kyoso...@gmail. com wrote:
On Dec 28, 12:57 pm, stanleyxu <no_re...@micro soft.comwrote:
To note this problem occurs when debugging script in IDLE editor.
When I double click on my_script.py, all outputs will be printed in one
console.
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\
Why are you using os.system for these commands in the first place? You
should be using the os and shutil modules instead as they would be
more cross-platform friendly.
Something like this:
# untested
for new_folder, old_folder in folder_array:
os.mkdir(new_fo lder)
shutil.copytree (old_folder, new_folder)
Adjust the path as needed in the mkdir call.
See shutil's docs for more info: http://docs.python.org/lib/module-shutil.html
And here's some folder manipulation docs: http://effbot.org/librarybook/os.htm
By the by, the subprocess module is supposed to be used in place of
the os.system and os.popen* calls:http://docs.python.org/lib/module-subprocess.html
Mike
Thanks Mike,
you have provided another option.
But my question has not been answered yet. The reason, why I use
os.system(), is that I want to avoid accident file deletion by writing a
script. My real script looks like:
Technically speaking, the shutil module's copytree function will not
delete ANYTHING if the destination already exists. It will just fail.
You could catch the failed copy with a try/except that prints an
appropriate message detailing the error.
# 1. Funtion to execute a command in DOS-console
def execCommand(cmd ):
if DEBUG_MODE:
print 'DOS' + cmd;
else:
os.system(cmd);
# 2.1 Creates temp folder. Removes it first, if it exists.
if os.path.exists( tmp_folder):
execCommand('RD "' + tmp_folder + '" /S /Q');
execCommand('MD "' + tmp_folder + '"');
# 2.2 Copies all files to the temp folder, that are going to be put in
package.
for source_folder, dest_folder in folders_array:
if not os.path.exists( dest_folder):
execCommand('MD "' + dest_folder + '"');
execCommand('XC OPY \"' + source_folder + '" "' + dest_folder + '" /Y');
The benefit is that, when I set DEBUG_MODE=True , I can see what will be
executed. So that I can make sure that my script will not delete any
other important files by accident.
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\
Carl Banks mentioned the subprocess module too and he pointed out its
output redirection capabilities. I recommend checking those out too.
You may be able to do some redirection by changing where stdout and
stderr print to.
Mike
Thanks again for your kindly tips.
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\
>
import subprocess
output = subprocess.Pope n('MD "' + new_folder + '"', shell=True,
stdout=subproce ss.PIPE, stderr=subproce ss.STDOUT).comm unicate()[0]
print output
Carl Banks
Thanks Carl, it works ^^)
--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/ stanleyxu2005
/_/ \_\ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Abraham Lopez |
last post by:
Hi.. Is there a way to convert a System.Array to XML...
If you know thanks very much...
if you don't... Please do not respond stupid things like " Yes -- many
ways."
|
by: MLH |
last post by:
Where is system.mdw normally stored
in typical A97 installation?
|
by: SR |
last post by:
Hi,
I need to read the output from a system( ) function within a C program.
The function however only returns the exit status.
How can I read what system( ) sends to stdout ?
(is there a simpler way than having to fork a child process and then
catching its output ?)
(if needed: working on linux)
Thanks
|
by: The Spoon |
last post by:
I am looking for functions that can be used to automatically update the
system date and time on an NT based system, resulting from manually entered
date and time values input by an operator via a 32-bit console app. Any
ideas?..I may have to look further afield at Win32 API's, etc but I wondered
if there was any way to do it via C initially.
Merry Xmas to all !!!
|
by: markus |
last post by:
Hi,
I have a question that deals with the standard c library VS (Unix)
system calls.
The question is: which header files (and functions) are part of the C
library and which header files (and function calls) are part of the
(Unix) system calls.
The cause of my confusion is that for example stdio.h is considered
| |
by: Richard Lionheart |
last post by:
Hi All,
I tried using RegEx, but the compiler barfed with "The type of namespace
'RegEx' could not be found.
Prior to this, I had the same problem with MatchCollection, but discovered
it's in the namespace "System.Text.RegularExpressions;" and that namespace
is, in turn, defined in the namespace "System", according to MSDN at
http://msdn2.microsoft.com/en-us/library/c75he57e(en-us,VS.80).aspx. So
adding "using...
|
by: Mark Miller |
last post by:
I just recently started getting the above error on a page I am posting
MULTIPART/FORM-DATA. We have SoftArtisans FileUp component and Filter
installed on the server in question and up until a day or so ago everything
was working fine. I honestly can't remember changing anything since it was
last working. But I tried reinstalling the .Net Framework along w/ the
service pack, which didn't work. I also had v1.1 already installed but I
hadn't...
|
by: Sky |
last post by:
Yesterday I was told that GetType(string) should not just be with a Type, but
be Type, AssemblyName. Fair enough, get the reason. (Finally!).
As long as it doesn't cause tech support problems down the line...
What happens when my code is run on a station that only has framework 3.0 or
4.0, and this assembly, with version number defined for 2.0.0.0 , isn't
available. ...breaks?
Second question:
Does an assembly's PublicKeyToken change...
|
by: JonathanOrlev |
last post by:
Hello everybody,
I wrote this comment in another message of mine, but decided to post it
again as a standalone message.
I think that Microsoft's Office 2003 help system is horrible, probably
the worst I
ever seen.
I almost cannot find anything I need, including things I
|
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...
|
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,...
| |
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...
|
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...
|
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...
|
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();...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |