[Tutor] Weird Try..Except Error
Hi All,
Please look at the snippet below.
When I am running my module its giving me following error.
Using : Python 2.7, windows Env.
{{{
# User defined modules
try:
from scripts import precheck
from scripts import input
from scripts import validate
from scripts import logsetup
from scripts.constants import *
except ImportError, err_msg: == line 38
print(ERROR {0}.format(err_msg))
print(INFO Please verify the presence of above module, and restart the
installation)
sys.exit(1)
}}}
{{{
Output:
C:\ install.py -f input.xml
File C:\install.py, line 38
except ImportError, err_msg:
^
SyntaxError: invalid syntax
}}}
I checked the comma and spacing and didn't find any problem.
Any idea.?
Thanks
Nikunj
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Re: [Tutor] Weird Try..Except Error
Hi All,
Thanks for the info.
I had Python27 and Python32 both installed togethar.
In Windows the PATH env variable, I had set Python27 exe and lib path.
But When I do
C:\ Python [PressEnter]
I get 2.7
But when I run
C:\ script.py [PressEnter]
The script is running with Python3.2 , thts weird because I have set my Path
variable with Pytho27 exe and lib.
Which was causing the problem.
Thanks
Nikunj
-Original Message-
From: tutor-bounces+nikunj.badjatya=emc@python.org
[mailto:tutor-bounces+nikunj.badjatya=emc@python.org] On Behalf Of Peter
Otten
Sent: Friday, November 25, 2011 5:28 PM
To: tutor@python.org
Subject: Re: [Tutor] Weird Try..Except Error
nikunj.badja...@emc.com wrote:
Please look at the snippet below.
When I am running my module its giving me following error.
Using : Python 2.7, windows Env.
{{{
# User defined modules
try:
from scripts import precheck
from scripts import input
from scripts import validate
from scripts import logsetup
from scripts.constants import *
except ImportError, err_msg: == line 38
print(ERROR {0}.format(err_msg))
print(INFO Please verify the presence of above module, and restart
the installation) sys.exit(1)
}}}
{{{
Output:
C:\ install.py -f input.xml
File C:\install.py, line 38
except ImportError, err_msg:
^
SyntaxError: invalid syntax
}}}
I checked the comma and spacing and didn't find any problem.
Any idea.?
You are likely mistaken about the Python version you are using. The above
error will be triggered by Python 3.x which expects
try:
...
except ImportError as err_msg:
...
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Re: [Tutor] ProgressBar - Python and Powershell
Can anyone throw some light on this please. ! ? From: tutor-bounces+nikunj.badjatya=emc@python.org [mailto:tutor-bounces+nikunj.badjatya=emc@python.org] On Behalf Of nikunj.badja...@emc.com Sent: Thursday, November 17, 2011 4:21 PM To: tutor@python.org Subject: [Tutor] ProgressBar - Python and Powershell Hi All, I am using Python 2.7, windows Env. I have an Installer written in Python(45%) and Powershell(55%) which is used to install Virtual Machines at specific locations. It is single threaded. I am trying to implement a ProgressBar for this installer. So that the user will come to know the progress of the installation. I am using pypi progressbar module. The top script is in python which inturns calls powershell scripts using subprocess.call() and proceeds with the installation. I am taking a shared file between python and powershell, so that diff functions can update their %age completion level in to the file. Ex. Func1() updates it to 5%, func2() will add its own 5% to it.. and so on. At the start of the (main.py) script I am creating a thread whose sole purpose would be to keep READ a temp file for a new entry in it. Based on this entry I can have my thread update the progressbar on the console. My questions are: 1. Can I have a better shared mechanism between python and powershell.? As I am using a file here. Reading + writing in python and writing only in powershell. ! 2. Does this thread mechanism work.? I am yet to implement and test it.! :P What can be the possible shortfalls.? Thanks Nikunj Bangalore - India ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] ProgressBar - Python and Powershell
Thanks for the reply Steve. I mean, the installer as a sole is single threaded. They way to implement progressbar may turn it to multithreaded. Anyways, I have posted the problem in pyhton-list ml. Thanks Nikunj -Original Message- From: tutor-bounces+nikunj.badjatya=emc@python.org [mailto:tutor-bounces+nikunj.badjatya=emc@python.org] On Behalf Of Steven D'Aprano Sent: Sunday, November 20, 2011 8:46 PM To: tutor@python.org Subject: Re: [Tutor] ProgressBar - Python and Powershell nikunj.badja...@emc.com wrote: Can anyone throw some light on this please. ! ? This is a list for beginners learning Python. Your question is quite advanced for this list, as it involves both threads and subprocesses. It also uses a third-party module, progressbar, and a Windows-only application Powershell. You might get lucky and find somebody here that knows all of these technologies, but I think you're asking in the wrong place. Perhaps you should try in the main Python mailing list, python-l...@python.org, also available on Usenet as comp.lang.python. By the way, you say that your application is single-threaded, but then describe using threads. That means it isn't single-threaded at all. Good luck. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] How to get module name from ImportError
Hi All,
Please look at the following snippet.
{{{
# User defined modules
try:
from scripts import precheck
from scripts import validate
from scripts import constants
except ImportError:
print(ERROR: One of the modules (..scripts/precheck.py, validate.py,
constants) is not present.)
print(INFO : Please verify the above modules, and restart the
installation)
sys.exit(1)
}}}
See the red line.
I want to get the name of the particular module which is not available and
hence causing ImportError.
One of the ways can be to get the STDERR and process it using re. !?
Is there a better alternate available .?
Thanks
Nikunj
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Re: [Tutor] How to get module name from ImportError
Exactly !
Thanks a lot.
From: Christian Witts [mailto:cwi...@compuscan.co.za]
Sent: Monday, November 21, 2011 11:36 AM
To: Badjatya, Nikunj
Cc: tutor@python.org
Subject: Re: [Tutor] How to get module name from ImportError
On 2011/11/21 07:54 AM, nikunj.badja...@emc.commailto:nikunj.badja...@emc.com
wrote:
Hi All,
Please look at the following snippet.
{{{
# User defined modules
try:
from scripts import precheck
from scripts import validate
from scripts import constants
except ImportError:
print(ERROR: One of the modules (..scripts/precheck.py, validate.py,
constants) is not present.)
print(INFO : Please verify the above modules, and restart the
installation)
sys.exit(1)
}}}
See the red line.
I want to get the name of the particular module which is not available and
hence causing ImportError.
One of the ways can be to get the STDERR and process it using re. !?
Is there a better alternate available .?
Thanks
Nikunj
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try:
... import nothing
... except ImportError, err_msg:
... print err_msg
...
No module named nothing
Hope that helps.
--
Christian Witts
Python Developer
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[Tutor] ProgressBar - Python and Powershell
Hi All, I am using Python 2.7, windows Env. I have an Installer written in Python(45%) and Powershell(55%) which is used to install Virtual Machines at specific locations. It is single threaded. I am trying to implement a ProgressBar for this installer. So that the user will come to know the progress of the installation. I am using pypi progressbar module. The top script is in python which inturns calls powershell scripts using subprocess.call() and proceeds with the installation. I am taking a shared file between python and powershell, so that diff functions can update their %age completion level in to the file. Ex. Func1() updates it to 5%, func2() will add its own 5% to it.. and so on. At the start of the (main.py) script I am creating a thread whose sole purpose would be to keep READ a temp file for a new entry in it. Based on this entry I can have my thread update the progressbar on the console. My questions are: 1. Can I have a better shared mechanism between python and powershell.? As I am using a file here. Reading + writing in python and writing only in powershell. ! 2. Does this thread mechanism work.? I am yet to implement and test it.! :P What can be the possible shortfalls.? Thanks Nikunj Bangalore - India ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
