I am currently working on a Jenkins freestyle job and one of the build steps is to run a Python script. I have been working on this job for a couple of days now and this is one of the last build steps needed to finish it off. I have reached a point where I get an error letting me know that the import winreg module does not exist.
I have installed Jenkins on CentOS and have read some documentation stating that I am unable to import this module on this distribution.
Is there no other way to solve this than to switch over to a Windows machine?
Thanks
It makes sense, the _winreg docs says:
These functions expose the Windows registry API to Python.
You could try to make it run on a windows virtual machine in your centos host or just following the official Installing+Jenkins+on+Red+Hat+distributions guide
Related
I have a Windows machine in which some Python code works, but now needs to work on new machine.
I have installed the same Python version 3.6.5.
First issue was that when I run the code, it can not find a re.py library, which is in fact in Python's Lib folder. So I have added sys.path.append('C:\Python\Lib') and now it can find it.
But now I get the syntax error from that library, where I say import re, that lines throws an error regarding some line in re.py library. If I import getopt, I also get syntax error on some line.
How is that even possible? Syntax error in pythons Lib files which came with installation?
And the thing is that on machine 1 it works, same file contents, same python version. I am under impression that I have wrong in python.exe version for this version of libraries, but I have simply downloaded Windows installer and installed it.
I don't even know what to google for, does someone has any idea? I am importing re in WeblogicAuto.py on line 5.
D:\Jenkins\workspace\weblogic-full-deployment-copy\weblogic-deployment>MainAutoDeployment.py -f DEV -v 2.61.0.12
Initializing WebLogic Scripting Tool (WLST) ...
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
Problem invoking WLST - Traceback (innermost last):
File "D:\Jenkins\workspace\weblogic-full-deployment-copy\weblogic-deployment\WeblogicAuto.py", line 5, in ?
File "C:\Python\Lib\re.py", line 247
b"_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890")
^
SyntaxError: invalid syntax
You are using WLST (WebLogic Scripting Tool).
WLST is very specific distribution of python:
it's jython
it roughly corresponds with python 2.7
And you trying to import libs from your CPython 3.6.5 distribution.
You need to:
remove your sys.path.append that you added earlier
check python libraries in jython library path. Which could be $HOME/.jython or WLST-specific path (look in WebLogic documentation)
OK many thanks to ya all, I've found the solution, it was about Jython libraries. I will try to elaborate a bit if someone stumbles upon this issue.
What I do here is that I deploy java modules to Oracle Weblogic application server. So this answer will also help someone trying to deploy to Weblogic from python.
From the start I was avoiding to install Webloglogic software on a machine from where I do the deploy (and that is a Jenkins slave which runs these python file, simple job).
I noticed that first machine (first Jenkins slave) has Weblogic installed, but I like to keep it minimal :)
What you do need is weblogic.jar and (not sure at this moment) wlfullclient.jar which is generated on Weblogic server (google how if needed or you may already have it).
The thing is that even though I have pure python code, when you call another python code with java weblogic.WLST pythonCode.py, it will be run with jython application! And it needs its libraries in its sys path.
In jython file I've added print(sys.path) then run in on both machines (slaves). I've noticed that path is different on those machines, even though if you type it in command prompt you get the same, but different then when Jenkins runs it.
So instead of looking how to fix those paths and copy files to them, I have created folders where it expects them, and copied them from first machine (easy fix, I may look into it later).
These are the sys.path and files that were needed, present on first machine:
['D:\\Jenkins\\weblogic\\Lib', '__classpath__', 'C:/bea10/wlserver_10.3/server/lib/weblogic.jar', 'C:/bea10/wlserver_10.3/common/wlst/modules/jython-modules.jar/Lib', 'C:/bea10/wlserver_10.3/common/wlst', 'C:/bea10/wlserver_10.3/common/wlst/lib', 'C:/bea10/wlserver_10.3/common/wlst/modules', '.']
This was sys.path on second machine, so I simply copied there:
['D:\\Jenkins\\weblogic\\Lib', '__classpath__', 'D:/Jenkins/server/lib/weblogic.jar', 'D:/Jenkins/common/wlst/modules/jython-modules.jar/Lib', 'D:/Jenkins/common/wlst', 'D:/Jenkins/common/wlst/lib', 'D:/Jenkins/common/wlst/modules', '.']
Note that jython-modules.jar is a file, so /Lib should be from that file if I get how java works.
Feel free to contact me for more details.
I am relatively new to programming and posting to Stack Overflow. Please forgive my ignorance.
I am attempting to use a third party module in a program of my own, however I can't work out how to access the module within my Python script.
Mac OS X Sierra 10.12.4
Python 3.6.1
Anaconda 4.3.1
Specifically, I would like to be able to access anki (https://github.com/dae/anki).
I initially tried the line:
from anki import Collection
That resulted in a 'ModuleNotFoundError'.
Next I tried:
conda install anki
which also didn't work and yielded a 'PackageNotFoundError'
After more searching, I decided to try:
import sys
sys.path.append('usr/share/anki')
from anki import Collection
However, this also results in a 'ModuleNotFoundError'
What do I need to do to be able to access this module?
I am sure that it is possible because I have come across several other programs which make use of it:
-https://eshapard.github.io/anki/open-the-anki-database-from-python.html
I recognize that the link above purports to offer a solution to exactly this problem, however the solution proffered isn't working for me. Thanks in advance.
You are telling about Anki for desktop computers, which IS application written in Python, but it is NOT an installable Python package.
So the commands like
conda install anki
or
pip install anki
have no meaning.
So the only way is to download full source code of this project, unzip the content of it (only) folder into your project (change you actual folder to it) and then you may do import commands.
I've installed mesos 0.26 successfully on a vm machine.
The installation has been performed on an ubuntu trusty thar system
by following this manual:
https://open.mesosphere.com/getting-started/install/
So far so good. I wanted to write a tiny python framwork.
For this I need to install the eggs via easy_install:
(I've downloaded the eggs accordingly for the trusty thar ubuntu and the 0.26 mesos):
wget http://downloads.mesosphere.io/master/ubuntu/14.04/mesos-0.26.0-py2.7-linux-x86_64.egg
easy_install mesos-0.26.0-py2.7-linux-x86_64.egg
all went fine, however, if I start python in the shell
and type in
import mesos.interface
I get the message: ImportError: No module named interface
As someone suggested, it may be that there is no longer a binding for python, or that they have renamed the API calls. Well, I looked in the version updates here:
http://mesos.apache.org/documentation/latest/upgrades/
Since the transition from 0.19.x to 0.20.x there hasn't been any changes regarding the mesos.interface part, or at least they are not mentioning it here.
To increase the confusion I also get the following error message when I'm typing in python: import mesos.native
There I receive: ImportError: No module named interface.mesos_pb2. To put it into a nutshell: what is going wrong here, and how can it be fixed? And yes, I've googled various web pages, with terms such as "mesos python bindings", mesos +api +python, etc. And yes, I have also consulted the official mesos webpage. There are nice refences for Java and C++ but not for python, or at least they are very well hidden.
Thanks in advance for any hints.
Solved. For what reasons ever:
export PYTHONPATH=${PYTHONPATH}:/usr/lib/python2.7/site-packages/
is required to set the PYTHONPATH. After that step it works like a charm.
Our project is a mostly J2EE based development with the automatic functional and integration tests written in Python. The test environment is Linux nonetheless developers use Windows 7 (64-bit). We would like to be able to execute the functional tests on the developer machines as well (before comitting). Unfortunately the pexpect-windows-portability issue would leave us no choice but:
To do some serious refactoring on our test libraries to be able to use both winpexpect (or wexpect) and pexpect depending on the os settings.
Or to use cygwin. Guess what, with this second option we seem to have an issue :-) Using Python 2.7.5 on Cygwin64 installing the requests package results in error:
pip says it can not find a file after downloading and extracting the library
easy install doesn't throw an explicit error, but leaves everything in the temporary dir
after copying the files under the site-packages directory a simple import requests in python causes the interpreter to exit
Has anybody encountered this problem? With Cygwin-32 requests install smoothly. (however we have some other issues - see my next post ;-))
Thank you in advance: Joe, the public
Also ran into the same issues when trying to install requests, all the options on http://docs.python-requests.org/en/latest/user/install/#install did not work. I went to https://github.com/kennethreitz/requests and then clicked on "Download Zip" and I got requests-master.zip.
Update: This should be fixed in Cygwin.
This was a bug in CPython that has been fixed in their master branch. I've pushed a candidate package to the Python maintainer for Cygwin, but you might try this hotfix.
I downloaded from "https://github.com/requests/requests" and then i just ran the setup.py from the requests-master folder ( this was placed in cygwin folder). After that I went to cygwin terminal and then I ran python --> import requests. Voila it worked.
Python has a win32service package that seems to allow windows service creation. I have carefully checked available google examples, for example this one:
Is it possible to run a Python script as a service in Windows? If possible, how?
I have placed code into ~/Documents/test.py and executed following under elevated command prompt:
> python test.py install
> python test.py debug
Unfortunately, every example i tried fails with error:
Debugging service TestService - press Ctrl+C to stop.
Error 0xC0000005 - Python could find the service class in the module
AttributeError: 'module' object has no attribute 'AppServerSvc'
(null): (null)
I have tested it with latest version of ActivePython (2.7.2.5 32-bit) on Windows 7 64-bit and Windows 8 64-bit. Of course, if service is started maually via service manager, it will not start either.
Am i doing something wrong or Python is not intended to be used for service creation on modern operating systems? Maybe i need a specific version of windows/python/pywin32? Of course, i can manually test all combinations starting from windows XP but it will take lots of time :(. Maybe someone already has experience with Python and windows services and can hint me what i'm doing wrong?
update
Tested on Windows XP 32-bit virtual macine (same code, same activepython distribution) - same error.
It appears that there is a bug in the ActiveState build for PyWin32. Installing ActiveState python 2.7.2.5 and running the linked sample code above, I get the same error that you are reporting.
But if I download Python 2.7.3 (2.7.2.5 does not seem to be available for download) and add PyWin32 build 214 (ActiveState seems to be using the 214 version of PyWin32). Then everything seems to work just fine. I also tried the latest build of PyWin32 (218) and it also worked correctly.
So I guess you can try reporting the problem to ActiveState (I don't have a support contract with them) and unless you have a requirement for using ActiveState, you can just switch to the standard Python builds.
I have been using services with the standard Python builds for years running on everything from Windows 2000 up to Server 2008 and Windows 7 with no problems. So I have good reason to believe that it will work for you also.
If you want to work with ActiveState to get the problem fixed, then the bug appears to be in their build of PythonService.cpp in the LoadPythonServiceInstance function. I looked at the registry entries that were created and they look fine, it is the PythonService.exe that is failing at loading your class. Based on the error message it appears to have loaded the module correctly and is just having trouble finding the class.