pip says that module has already been installed while python - centos6

Now a bit of background of my current setup:
I have Python3.3 running on Centos 6. I'm currently working on a web application using Flask that runs on Apache 2.2.15 with mode WSGI 4.5.3 and virtualenv 15.0.2.
pip --version pip 8.1.2 from /usr/local/bin/lib/python3.3/site-packages (python 3.3)
I have installed pysvn with pip and when I run pip show pysvn says
Location: /usr/local/bin/lib/python3.3/site-packages
755 permissions recursively set to /usr/local/bin/lib/python3.3/site-packages. And I passed --system-site-packages argument to virtualenv to use the global site packages.
Even when I try to import the package from python interpreter it does not work. So it is not specific to my virtualenv setup but rather a global problem.
I must mention that other packages installed with pip work perfectly fine (i.e. flask).
I've exhausted all other avenues before coming forward to you guys. Any suggestion would be highly appreciated as I ran out of ideas.
L.E.
I did manage to install it in the end. I'm not completly sure yet why and how but I presume is was compatibility issue.
First of all I have uninstalled svn 1.6+ and installed version 1.8.16 instead which seems to be tested against the latest two versions.
Second, I have uninstalled the troublesome pysvn instance and installed pysvn-1.8.0 workbench "sudo /var/www/FlaskApp/FlaskApp/flask/bin/pip install pysvn-1.8.0.tar.gz". In this case I have installed it my local environment. The 1.9.0 version of pysvn did not work.
L.L.E.
False positive, still doesn't work. I'm going to interact with svn via command line from my script.
L.L.L.E.
After installing svn 1.8.16 and svn-devel along with the rest of dependencies described in the readme file I have managed to successfully install it from the source fallowing the instructions.
Thanks for your help Barry.

pysvn is not available from PyPI because PyPI has no way to allow me to upload pysvn for each supported SVN version. Let alone deal with the issues of installing on a Linux distro given the choices for pysvn dependencies.
(APR, SVN, OpenSSL etc).
Fedora packages pysvn for the Fedora release.
I'm assuming that means it is on RHEL and therefore packaged by CentOS.
(But I do not have RHEL or CentOS to check this on)
If you find that a package is not available for your CentOs is not hard
to build pysvn on a linux distro. Get the source kit and follow the readme.html should get you going.
Barry (pysvn maintainer)

Related

Realm Object Server 2.x installation on ubuntu (can't find the .deb)

I am using Realm Object Server 1.8.3 manually installed from a .deb file (found on packagecloud.io) on my Ubuntu 16.10 and I would like to upgrade to a 2.x release (2.5.1 is the latest at the time of writing).
Unfortunately, packagecloud.io does not have 2.x packages (except some 2.0.0 release candidates and alpha versions) available and the installation instructions are using a different mechanism and do not integrate with systemd as far as I can tell.
Any hints on how to best do this or where to find a package?
There's no .deb file because ROS 2.x is published as an npm package. While you're right that there's no integration with systemd, because it's an npm package, you can use pm2 to daemonize your install (pm2 integrates with systemd).
Before you can daemonize it though, you'll need to follow the step-by-step guide on upgrading ROS 1.x to 2.x (won't repost it here as it's fairly lengthy and may become obsolete as new versions of ROS are released).
After you've done that, running it with pm2 is fairly straightforward:
npm install -g pm2
pm2 start path/to/myserver/dist/index.js

chocolatey: meteor v0.0.2 is the latest version available based on your source(s)

I follow the instructions to install meteor 1.6 on Windows(10) as stated on Meteor.com (choco install meteor) and it's installed a meteor v0.0.2 ?
When I try to run any meteor command I get: bash: meteor: command not found
and when I try choco upgrade meteor I get:
$ choco upgrade meteor
Chocolatey v0.10.8
Upgrading the following packages:
meteor
By upgrading you accept licenses for the packages.
meteor v0.0.2 is the latest version available based on your source(s).
Chocolatey upgraded 0/1 packages.
See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).
I tried choco uninstall meteor and then reinstall choco instlal meteor but same issue. Searching around online a little I found this page:
https://chocolatey.org/packages/meteor
I do have meteor installed and running on version 1.6.0.1 on Window 10's Ubuntu bash which was installed via curl https://install.meteor.com/ | sh
Following on from above post https://stackoverflow.com/a/47967277/642729 by Gary Ewan Park. The below comment on https://chocolatey.org/packages/meteor clarifies the Chocolately/Meteor versioning
The current version of Meteor is 1.6;
is this the version in the 0.0.2 Chocolatey package?
[Garrie Powers • 2 months ago]
The version number of the Chocolatey package is the version of the installer.
Meteor is unique in the way it works in that all versions
are capable of springboarding to other versions.
Therefore, in the same way as the Unix installer installs the latest version,
the Chocolatey installer will always install the latest version.
So at this exact moment, the answer to your question is "yes"!
[Jesse Rosenberger Garrie Powers • 2 months ago]
The best advice would be to reach out to the maintainers of that package of chocolatey.org. This can be done by clicking on the "Contact Maintainers" link of this page:
https://chocolatey.org/packages/meteor
It would seem that the creators of the application, also own the Chocolatey package, so hopefully they will get back to you.
From the official installer github:
The version of this Meteor installer is not to be confused with Meteor itself. Meteor, once installed, will always "springboard" to (download, install and run) the correct version of Meteor necessary for the application being executed.
...
When necessary, specific versions of Meteor can be installed using
Chocoloatey's --params argument which will download that specific
version from Meteor's installation server. For example, to install
Meteor 1.5.4.4:
C:> choco install meteor --params="'/RELEASE:1.6.0.1'"
Note: Prior to
Meteor 1.6, 64-bit versions were not available. Therefore, in order to
install versions prior to Meteor 1.6, you'll also need to pass
Chocolatey's --x86 option when running choco install on 64-bit Windows
platforms. For example:
C:> choco install meteor --x86 --params="'/RELEASE:1.5.4.4'"

RStudio installation failure under Debian sid: libgstreamer dependency problems

I use Debian sid (amd64), rolling updates as often as weekly. I downloaded recently the desktop version 0.99.902 of RStudio from their offical site and issued (as root, of course):
dpkg -i rstudio-0.99.902-amd64.deb
to no avail:
dpkg: dependency problems prevent configuration of rstudio:
rstudio depends on libgstreamer0.10-0; however:
Package libgstreamer0.10-0 is not installed.
rstudio depends on libgstreamer-plugins-base0.10-0; however:
Package libgstreamer-plugins-base0.10-0 is not installed.
Newer versions (1.0-0) of these 2 packages are installed on the system, but those older ones (0.10-0) are not available anymore on the official Debian repos.
What should be done to have RStudio installed and fully operational under
Debian sid? I have, of course, installed R debs, from official Debian
repositories, without any issues...
Thanks for any help!
RStudio 1.0.153, released on July 20th 2017, depends on GStreamer 1.0 instead of GStreamer 0.10. It can be installed on modern Debian/Ubuntu without any additional setup, rendering this question and my answer obsolete.
To be more specific, there are two different DEB packages. One is aimed at Ubuntu 16.04 (or later) and Debian 9 (or later), comes only in 64-bit flavor and depends on newer GStreamer 1.0. Another package supports Ubuntu from 12.04 up to 15.10 and Debian 8 and it comes in both 32-bit and 64-bit flavors. This one still depends on older GStreamer 0.10.
Original answer remains below.
As of mid-2016, RStudio has hard dependency on GStreamer 0.10 and there is no way around it. You have to install libgstreamer0.10-0 and libgstreamer-plugins-base0.10-0 to use RStudio.
These packages can be easily pulled in from Debian Jessie (stable). Just add Jessie repository to your sources.list and use apt-pinning to give it lower priority:
# /etc/apt/sources.list:
deb http://httpredir.debian.org/debian jessie main
# /etc/apt/preferences.d/01_release:
Package: *
Pin: release o=Debian,a=unstable
Pin-Priority: 600
Package: *
Pin: release o=Debian,n=jessie
Pin-Priority: 10
Then issue apt-get update and follow up with apt-get install libgstreamer0.10-0 libgstreamer-plugins-base0.10-0.
If you have happened to put RStudio .deb file into local repository, then use apt-get install rstudio and GStreamer0.10 will be pulled in by dependency resolver. This has additional advantage of marking these libraries as automatically installed - they will be subject to automatic removal once RStudio drop them as dependency.
But will that break my system?
No.
Upstream developers designed GStreamer0.10 and GStreamer1.0 as co-installable and able to run at the same time (source). In fact, both were available in Debian repository since September 2012 up to April 2016.
In this pinning setup, packages from Jessie repository will be pulled in only when Jessie is the only provider of requested package. There is no risk of overwriting any package from unstable with older version from stable.
Why does RStudio depend on obsolete library?
Because GStreamer0.10 is the newest version available in both Debian Jessie and Ubuntu 12.04, two distributions they want to support.
RStudio will eventually have to upgrade their dependency to GStreamer1.0, as it will gradually become the only version available. I guess this change may be introduced in spring 2017. First, support for Ubuntu 12.04 will end in April. Rstudio is likely to bump base system requirement to 14.04 - one that has both GStreamer0.10 and 1.0. Second, Debian Stretch - that will have only GStreamer1.0 available - is expected to be released around that time.
I found Miroslaw's answer to be excellent. But, due to the passage of time you will need one more package: libssl1.0.0, so your setup apt-get will look like
apt-get install libgstreamer0.10-0 libgstreamer-plugins-base0.10-0 libssl1.0.0
Download libgstreamer0.10-0 for your machine from any of the mirrors.
Open terminal in the directory where the file is downloaded.
Install it using the command, sudo dpkg -i file.deb. Example sudo dpkg -i libgstreamer0.10-0_0.10.36-1ubuntu1_amd64.deb.
Now open the directory where rstudio.deb is located and install it in the same way.
Download the libraries
http://ftp.br.debian.org/debian/pool/main/g/gstreamer0.10/libgstreamer0.10-0_0.10.36-1.5_amd64.deb
http://ftp.br.debian.org/debian/pool/main/g/gst-plugins-base0.10/libgstreamer-plugins-base0.10-0_0.10.36-2_amd64.deb
Install them with gdebi or dpkg -i and that is it

PyQT5 error: could not find or load Qt platform plugin xcb

Up until Anaconda3 (which contains Python 3.4) was re-installed on my RedHat 6.5 workstation, I have been able to develop Python apps that use PyQT5.
Post re-install of Anaconda I receive an error message:
....could not find or load Qt platform plugin xcb
The only difference between Anaconda installs is the folder name: /usr/local/ananaconda3 vs /usr/local/anaconda_py3
I checked libqxcb.so has no missing dependencies.
I rebuilt PyQT5.
I tried explicitly adding location of site-packages of PyQT5:
import site
site.addsitedir("...path.../python3.4")
Any other suggestions?
How does re-installing Python impact the use of PyQT5?
This is an error caused by having two different versions of Qt under the same installation/environment.
Check the packages installed and their versions in your environment (if for some reason you're not working in a virtual environment, you can skip the first line):
source activate yourenvname
conda list
If you see pyqt and qt both with version 4.X.X then remove them (assuming you want to work in Qt v5):
conda remove qt
conda remove pyqt
I had an issue that seems to match what happened here.
But in my case the solution was to "sudo rm -rf user/anaconda3" and reinstall it with "bash anaconda....sh", because I had previously installed it using sudo ("sudo bash anaconda....sh")

Installing iPDC Unix Programme

I am trying to install iPDC on a Centos unix laptop.
I am getting a make error when I attempt to install the programme - I have attached a screenshot of my problem.
The command run is sudo make install and I am attempting to install as the root user.
Your installed GTK version is probably too old to support this software. GtkBuilder (a component within GTK) showed up at version 2.12. To find out what version you have, run pkg-config --modversion gtk+-2.0 at the command line. But that version has been around for quite some time. What version Centos are you running? I assume 5, which is quite old.
Upgrading GTK can be tricky, as most of your desktop software relies on it. If you're in for an adventure, the "easiest" would be to upgrade your Centos OS (to 6.x). You might be able to compile a more recent GTK from source and keep it separate from your system GTK, but that will take some patience.
It seems that GTK is not installed.
Try something like: yum install gtk2 or yum install gtk2-devel

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