I'm finding it to install pycurl on CentOS 5 quite the mission impossible.
This is the error I'm getting:
>>> import pycurl
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: libcurl.so.4: cannot open shared object file: No such file or directory
Some help would be beyond amazing. :|
I know this is an old question, but I was just having this issue and the solution was to add the following soft link:
ln -s /usr/local/lib/libcurl.so.4.1.0 /usr/lib/libcurl.so.4
This is for libcurl 7.19.
The problem appears to be that pycurl is looking for the libcurl so in a different location than where it gets installed on CentOS.
This works when installing pycurl manually, such as when are using a python version other than 2.4, which is probably most of today's installs. I assume the pycurl centos rpm handles that, but that works for 2.4 only.
In Fedora 13 python-pycurl would be the package you were looking for. Try that.
Looks like you are missing the libcurl libraries, which you can install like this:
sudo yum install libcurl
After that, it may be a good idea to refresh your pycurl install, by doing the following:
sudo easy_install pycurl
If that gives you the error "command not found" (I don't know if CentOS'es built-in version of Python includes SetupTools a/k/a/ easy_install), then you need the SetupTools first and then run the easy_install command above:
sudo yum install python-setuptools
Hope that helps!
Related
from here: https://stackoverflow.com/questaions/34507045/how-to-install-man-pages-for-c11 there is mentioned,
cppman is no longer supported under Ubuntu/apt
and therefor no libstdc++6-<version>-doc could be install via apt anymore.
and the only way to install the man page is via pip3. So I have tried to install
sudo apt-get install python-pip and sudo apt-get install python3-pip. Now, having python3, I can install it via pip3:
pip3 install cppman, everything seems correct, before I tried to cache the man pages: cppman -c, which giver error:
Traceback (most recent call last):
File "/usr/local/bin/cppman", line 40, in <module>
from cppman.main import Cppman
File "/usr/local/lib/python2.7/dist-packages/cppman/main.py", line 26, in <module>
import html
ImportError: No module named html
As could be seen, it uses Python2.7 instead of Python3, that is strange.
From github, I have found similar problem here: https://github.com/aitjcize/cppman/issues/80, where they suggest to do
pip uninstall mancpp
pip3 install mancpp
Which I did, but when installing mancpp again from pip3, then another server error:
Collecting mancpp
Could not install packages due to an EnvironmentError: 404 Client Error: Not Found for url: https://pypi.org/simple/mancpp/
So what now? If you read till here, than you can see there are many errors, but cannot find solution anywhere in stack sites. I only want to have cpp manuals for searching for functions and classes (like std) and mainly for glibc++. As I could do simply with c functions. Why is it so hard? Anyway, how to install the mancpp via pip3?
uname -a:
Linux 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) x86_64 GNU/Linux
The script uses #!/usr/bin/env python shebang and on your system python is most probably 2.7. Just edit the script:
sudo vim /usr/local/bin/cppman
Append 3 at the end: #!/usr/bin/env python3 and try again.
I'm trying to build a SAML authentication mechanism in Python using the OneLogin module, but I can't even get started. Trying from the example code provided in the docs, I can't even load the package.
This works:
import onelogin
but this gets a ModuleNotFoundError:
>>> from onelogin.saml2.auth import OneLogin_Saml2_Auth
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'onelogin.saml2'
I only managed to get this working on a Linux machine, so hope you're not on windows. Here's what worked for me.
I had to do a seperate install of hte xmlsec-library first:
apt-get install xmlsec1 openssl python-lxml libxmlsec1 libxmlsec1-dev
and then I was able to
pip install python3-saml
and there were no complains anymore.
You need to install Xmlsec first and then python3-saml but if you are on Windows, Xmlsec has some issues but as with python 3.6 and below the problem is solved. Use this link to download the wheel file for your python version https://github.com/mehcode/python-xmlsec/releases
Install the wheel file using
pip install <wheel_file_name>
As with Python 3.7, the only way out is to install xmlsec on a Linux machine as it is not yet supported on Windows.
In ubuntu 16.04 i installed python and modules:
sudo apt install python3 python3-scipy python3-numpy python3-ase
then i try to follow the first tutorial on the ASE homepage. I run python3 in bash terminal, and can import other modules but not ase-build. It looks like this:
>>> from ase.optimize import QuasiNewton
>>> from ase.build import fcc111, add_adsorbate
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named 'ase.build'
>>>
Using a python script throws an equivalent error.
What could be the problem?
UPDATE & SOLUTION
Seems this was not really even a python problem. I seem to have had some package dependency errors probably due to not running apt update in a long time between program installations. I removed python2.x and python 3.x, then iterated apt update, apt upgrade, apt autoremove, then reinstalled only python3. I installed python3-pip and installed the numpy, scipy, and ase packages using the proper form python3 -m pip install --upgrade <package>. Now everything works as expected.
Check what version of the library you have.
import ase
print(ase.__version__)
If the version is 3.10.0 then that is the problem since the build module appeared (as far as I know) in the 3.11.0 version.
Due to this link - you have installed the 3.9.1.4567-3 version on your computer.
But The asu.build has been added in:
commit 71c9563e423e2add645c26f8d0a722f3db13e135
Author: Jens Jørgen Mortensen
Date: Tue Apr 12 15:40:59 2016 +0200
Move stuff to ase.build module
So, the module asu.build doesn't exist in your version (3.9 has been released in 2015). You have to install the newer version of python3-asu.
Update 2:
the main problem turned out to be a different one from what I had thought it was, and asked for help here. I moved the new question to a new post:
Install custom python package in virtualenv
Update:
ok, so I screwed up my non-virtualenv by accident.
The non-virtualenv (normal bash) I could easily fix by removing the manually installed (via pip) lxml and running
conda install lxml --force
But for some reason, that doesn't work in the virtualenv.
There, running
conda install lxml --force
works without error message, but when I run python and simply say
>>> import lxml
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named lxml
Any suggestions??
old message:
I'm trying to use virtualenv for my python flask application.
The python code runs perfectly fine without the virtualenv.
I've installed the packages I need in the virtualenv, but I after installing lxml via
pip install lxml
Installing collected packages: lxml
Successfully installed lxml-3.6.0
I get the following error message when running my code:
File "/Users/XXX/xxx/flask-aws/lib/python2.7/site-packages/docx-0.2.4-py2.7.egg/docx.py", line 17, in <module>
from lxml import etree
ImportError: dlopen(/Users/XXX/xxx/flask-aws/lib/python2.7/site-packages/lxml/etree.so, 2): Library not loaded: libxml2.2.dylib
Referenced from: /Users/XXX/xxx/flask-aws/lib/python2.7/site-packages/lxml/etree.so
Reason: Incompatible library version: etree.so requires version 12.0.0 or later, but libxml2.2.dylib provides version 10.0.0
I have seen other people report similar problems at stackoverflow, and one guy remarked that the problem might related to the virtualenv, but there was no solution.
Once again: The python code runs perfectly fine without virtualenv! But inside virtualenv, I can't get it to work.
I'm using Anaconda Python 2.7 on a Mac.
I'd appreciate any help guys!
I had the same error and stumbled upon this link, after searching for the incompatible library error "libxml2.2.dylib provides version 10.0.0"
Installing libxml2 that worked for me:
brew install libxml2
brew link --force libxml2
Solution that works for me in virtual environment is to force pip to recompile lxml:
pip install lxml --force-reinstall --ignore-installed --no-binary :all:
I installed a new module and it appears as if one of its dependencies was not already installed. The module is called Xlib.display.
Here is the error message I received:
from Xlib.display import Display
ImportError: No module named Xlib.display
Where can I find this module that I am apparently lacking? Google yielded no leads.
"Edit: I already have that sourceforge module downloaded but I still get the same results.
Please try.
This shall install Xlib
sudo apt-get install python-xlib
Then you can check
>>from Xlib.display import Display
To install PyMouse if you want to control and capture mouse events please use:
sudo easy_install https://github.com/pepijndevos/PyMouse/zipball/master
Below worked for me!
pip install python3_xlib
I have also used pyuserinput for automation which requires this.
I was having the same problem, but the solutions above didn't work for me. Since I had installed python through the anaconda package, when I used:
sudo apt-get install python-xlib
Xlib was still undetectable by python2. The solution in my case was to use:
anaconda search -t conda python-xlib
Then find the package from the anaconda api, mine was erik/python-xlib. Install it using:
conda install --channel https://conda.anaconda.org/erik python-xlib
Then it worked.
On Debian systems install python-xlib.
On other systems there's a high probability that the package carries the same name.
I don't think the Xlib library works in Python 3.
Source:
Requirements
The Python X Library requires Python 1.5.2 or newer. It has been tested to various extents with Python 1.5.2 and 2.0 through 2.6.
I honestly cant explain why this works... but here is the command that got it working for me.
sudo apt-get install python3-xlib
Should not work because xlib apparently does not work with python 3.x, but everything installed alright, so I'm not complaining!
I was looking for the same answer, however after some more digging it seems that XCB (X protocol C-language Binding) will obsolete Xlib in general. From the XCB website:
The X protocol C-language Binding (XCB) is a replacement for Xlib featuring a small footprint, latency hiding, direct access to the protocol, improved threading support, and extensibility.
Fortunately there are python bindings available as python-xpyb in apt or xpyb on PyPi. I've not gotten that far in my project so I haven't tested if this works with Python3, but this is probably the way to go and the proper place to file any Python3 support bugs if necessary.
Scenario:
I was trying to use screenshot functionalities of pyautogui package. I was getting this error:
Traceback (most recent call last):
File "test_screenshot.py", line 1, in <module>
import pyautogui
File ".../miniconda3/envs/myenv/lib/python3.7/site-packages/pyautogui/__init__.py", line 152, in <module>
from . import _pyautogui_x11 as platformModule
File ".../miniconda3/envs/myenv/lib/python3.7/site-packages/pyautogui/_pyautogui_x11.py", line 7, in <module>
from Xlib.display import Display
ModuleNotFoundError: No module named 'Xlib'
Python code (test_screenshot.py):
import pyautogui
img = pyautogui.screenshot('test.png')
Environment:
Ubuntu 16.04 (LTS)
conda 4.5.11
Python 3.7 (Miniconda)
requirements.txt:
certifi==2019.3.9
Pillow==5.4.1
PyAutoGUI==0.9.42
PyGetWindow==0.0.4
PyMsgBox==1.0.6
PyRect==0.1.4
PyScreeze==0.1.20
PyTweening==1.0.3
Solution:
I installed python-xlib package in the conda environment using:
pip install python-xlib
Now test_screenshot.py is running without any error.
Updated requirements.txt:
certifi==2019.3.9
Pillow==5.4.1
PyAutoGUI==0.9.42
PyGetWindow==0.0.4
PyMsgBox==1.0.6
PyRect==0.1.4
PyScreeze==0.1.20
python-xlib==0.25
PyTweening==1.0.3
six==1.12.0