i am trying to get jython running with the apt-module from python.
I have standard python2.7 installed as well as jython2.7. When running import apt in python everything is ok, but when running it in jython the module is not found. When extending the sys.path to the python2.7-installation like /usr/lib/python2.7/dist-packages the apt-package is found but it complains about not finding the apt-pkg-package (which is just some simple .so-file and not a real "package" in python).
What can be done here?
apt_pkg is required by apt, and only implemented as a binary module. Unfortunately, jython cannot load these, so you're out of luck. You can either port apt_pkg to Java (you can simply create a shim with JNI), to pure Python, or use another mechanism (for example calling an apt frontend on the commandline and parsing its outputs).
Related
I'm trying to compile some raku code I saw on https://replit.com/languages/raku. The code is from Why is Raku reporting "two terms in a row" when I define a new operator?.
It begins like this:
unit module Format;
use List::Util;
...
It fails to compile with:
raku ./main.raku
===SORRY!=== Error while compiling /home/runner/l4gp3hvdnhd/./main.raku
Could not find List::Util in:
inst#/home/runner/.raku
inst#/opt/rakudo-pkg/share/perl6/site
inst#/opt/rakudo-pkg/share/perl6/vendor
inst#/opt/rakudo-pkg/share/perl6/core
ap#
nqp#
perl5#
at /home/runner/l4gp3hvdnhd/./main.raku:3
exit status 1
On the other hand I see this is a valid module - https://raku.land/zef:lizmat/List::Util.
Why is it failing?
TL;DR Run zef install --/test List::Util in the console, put use lib '.'; at the top of your Raku main.raku, and run, don't walk, with your program, before gremlins gleefully render your efforts in vain. Or maybe just listen to Liz and Rawley.
As Liz and Rawley have noted, you need List::Util installed.
But while I largely agree with them in practice (it may be a pain to use replit to do what you're trying to do) I think a different response to complement theirs might be helpful.
One of the ways replit is trying to distinguish itself from other online evaluators, is that it is trying to be akin to a full dev environment.
In reality it's early days in their ambitious project, and beggars can't be choosers (if you're not paying, it's hard to complain if things don't work out as you might want), but of particular relevance for this SO it is worth noting that it does have console/shell facilities and they've installed Rakudo Star, or perhaps just something like it, including the Raku package manager pretty much everyone uses (zef).
Thus this command, which I just ran in replit's console of a new raku session, worked:
zef install --/test List::Util;
(The --/test tells zef not to run tests. I've only got a free account and it looked like replit killed zef's process when I ran just zef install List::Util during its running of tests. Presumably they take too long, but I don't know.)
And then this main.raku also worked:
use lib '.'; # Tell Raku(do) libs are in current directory.
use List::Util <notall>; # Load and import `notall` from module.
say notall { 42 }, 99; # Try it.
But now the rub. As I was composing this answer, the expected happened. My internet connection momentarily flaked out, the replit rebooted the session, and while my main.raku code was rescued, both List::Util and my console history had disappeared, so I had to paste the install command again and rerun it to get the module installed again.
It's all just throwaway container magic, and there's only so much replit has done thus far to make the simulation of a real full local dev environment really work.
Maybe if your Internet connection is rock solid and/or you're using a paid replit account and/or it's the full moon, it'll all work out. Or maybe you're best off following Rawley's advice.
Speaking of which (I mean Rawley's advice to set up your Raku dev environment locally), if you do install locally you can also install the awesome free version of CommaIDE.
You do not have List::Util installed. Since you're using an online interpreter you will most likely have a lot of trouble doing this. Instead I recommend installing Raku on your local machine with rakubrew.
Then run the following commands:
rakubrew build # Make sure to follow the instructions at the end
rakubrew build-zef
zef install List::Util
Now you should be able to run your code on your local machine, and you'll have access to the List::Util library.
I have Selenium installed on my computer (3.141.0) using Python 3.7
I have imported the library to Ride to a new Suite (WebAutomation), however, after I type the keyword OPEN BROWSER into the test case (OpenBrowser) it is not displayed:
The keyword OPEN BROWSER is not included in my Selenium version?
Hard to say, you don't include enough information for us to help you resolve your problem.
In general, the problem will be somewhere around one of these:
you have forgotten to install some library or dependency; please refer to this post, it might be similar to your problem; in short, you need to install:
$ pip install -U selenium
$ pip install -U robotframework-seleniumlibrary
$ pip install -U robotframework
you do not import SeleniumLibrary; make sure your file has this import correctly:
*** Settings ***
Library SeleniumLibrary
it could be only a RIDE's problem, perhaps you mean it won't show you the hint when you type Open? But what happens when you correctly type the whole keyword and run your test? Does it fail? With what error?
Unfortunately the latest version of SeleniumLibrary, 4.4.0, generates a documentation XML with some incompatibility with RIDE. There may be a long list of errors in the Parser log. We have an attempt of a workaround on the FAQ of the project page at https://github.com/robotframework/RIDE.
for me I had this issue when running ride as root. when I changed to a normal user it started working.
After searching the web for hours i didnt yet find an answer to my problem. I am using Python 3.6 and i cant import selenium. I always get the message "No module named 'selenium''
I tried everything, i first downloaded selenium from this website https://pypi.python.org/pypi/selenium/3.6.0 .
Then I tried python -m pip install -U selenium and didnt work either. I tried some other things that people said but they didnt work either.
Im using windows 10.
Any help?
As you mentioned you are using Python 3.6 following the steps :
Open Command Line Interface (CLI) and issue the command python to check if Python is properly installed :
C:\Users\username>python
Python 3.6.1 (v3.6.1:69c0db5, Jan 16 2018, 17:54:52) [MSC v.1900 32 bit (Intel)]
on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
Ensure pip is working properly :
C:\Users\username>pip
Usage:
pip <command> [options]
Commands:
install Install packages.
download Download packages.
uninstall Uninstall packages.
freeze Output installed packages in requirements format.
list List installed packages.
show Show information about installed packages.
check Verify installed packages have compatible dependencies.
search Search PyPI for packages.
wheel Build wheels from your requirements.
hash Compute hashes of package archives.
completion A helper command used for command completion.
help Show help for commands.
General Options:
-h, --help Show help.
--isolated Run pip in an isolated mode, ignoring environment variables and user configuration.
-v, --verbose Give more output. Option is additive, and can be used up to 3 times.
-V, --version Show version and exit.
-q, --quiet Give less output. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL logging levels).
--log <path> Path to a verbose appending log.
--proxy <proxy> Specify a proxy in the form [user:passwd#]proxy.server:port.
--retries <retries> Maximum number of retries each connection should attempt (default 5 times).
--timeout <sec> Set the socket timeout (default 15 seconds).
--exists-action <action> Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
--trusted-host <hostname> Mark this host as trusted, even though it does not have valid or any HTTPS.
--cert <path> Path to alternate CA bundle.
--client-cert <path> Path to SSL client certificate, a single file containing the private key and the certificate in PEM format.
--cache-dir <dir> Store the cache data in <dir>.
--no-cache-dir Disable the cache.
--disable-pip-version-check
Don't periodically check PyPI to determine
whether a new version of pip is available for
download. Implied with --no-index.
Install latest selenium through pip :
C:\Users\username>pip install -U selenium
Collecting selenium
Downloading selenium-3.8.1-py2.py3-none-any.whl (931kB)
100% |¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦| 942kB 322kB/s
Installing collected packages: selenium
Successfully installed selenium-3.8.1
Confirm that Selenium is installed :
C:\Users\username>pip freeze
selenium==3.8.1
Open an IDE (e.g Eclipse, PyCharm) and write a simple program as follows :
from selenium import webdriver
driver = webdriver.Firefox(executable_path="C:\\path\\to\\geckodriver.exe")
driver.get('https://stackoverflow.com')
Execute the program on which Firefox Quantum Browser will be initiated and the url https://stackoverflow.com will be accessed.
Python Download Location (Windows) :
Python (for Windows) can be download from the following location :
https://www.python.org/downloads/
I'm on VS Code in Windows 10, and here's how I solved it.
You need to pay attention to where the Python is located (in my case),
1) C:\Users\_Me_\AppData\Local\Programs\Python\Python38\
and where the Python looks for libraries/packages, including the ones installed using pip (again, in my case),
2) C:\Users\_Me_\AppData\Roaming\Python\Python38\
I don't know why these two locations are different (gotta fix it at some point). It seemed that Python was running from the first location, but it was looking for libraries in the second!:/
Anyway, since I have limited experience in Python , I just copied the \Lib\site-packages from the first location (including selenium folders) to \site-packages in second one in hopes of solving the issue, which worked out for me!
How to check for there locations
1) Open Python CLI, typed the following command:
which python
2) Open Python CLI, typed the following commands (From this answer):
>>> import site
>>> site.USER_SITE
EDIT
Since this seems a temporary solution, I uninstalled Python and reinstalled it again in a proper directory (other than the default install directory), and now which python and which pip point to the same folder! Problem solved!
If these solutions did not work for you, try looking into which Python interpreter your IDE is using (in my case I was using VSCode - you can find the interpreter in the bottom bar). Worked for me.
Easiest way is to copy all files of "venv" Lib, Scripts, Selenium and other folder into your main project folder.
This issue occur as pycharm directly take from virtual environment venv.
Hope this will resolve your problem :)
Windows Machine, Python 2.4.
I have a program that imports both xlwt/xlrd and abaqusConstants module.
When I run my program with the command line: abaqus python abc.py, I get "ImportError: No module named xlwt/xlrd"
When I run my program with the command line: c:\python24\python.exe abc.py, I get "ImportError: No module named abaqusConstants".
The program ran perfectly when I ran it on my system where xlrd/xlwt was present in c:\python24\lib and Abaqus was installed in C-drive. When I tried to access xlrd/xlwt from my organisation's common share, the above problem appeared.
Is it because Abaqus is not present in the common share? How do I rectify this issue? Please tell me what command line to use.
the module abaqusConstants is only available in abaqus kernel executions of python so you need to be running it with abaqus python. Make sure that your PYTHONPATH variable is set properly to include the directory where xlwt/xlrd exists. see Using matplotlib (for python 2.6) with Abaqus 6.12 for a similar issue.
I'm using a Java program to load and run Jython scripts - using the org.python.util.PythonInterpreter.
I'm storing the Jython scripts in a database : currently I'm having to extract the Python scripts to a file system prior to running them - to ensure that any 'import' statements within the scripts work.
Is there a way of avoiding this extraction step: that is - is there a way to hook into the Python interpreter to intercept the imports and call out to a Java Method (which would load the jython source from the DB) ?
You can add importers from either Python or Java (there's a standard one in the Jython code which imports from the classpath: org.python.core.ClasspathPyImporter; there's also some Javadocs in the org.python.core.util.importer interface it implements which may be useful). The code is relatively simple; see PEP 302 as well.