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.
Related
I am working on a raspberry pi 3B+. I want to upgrade the python from 2.7 to 3.6.
I downloaded the python 3.6 extracted and made it, However it got installed in the /usr/local/bin.
I tried to make it again this time by specifying ./configure --prefix=/usr prefix however the make gave a traceback error.
I also tried update-alternatives --install /usr/bin/python python /usr/bin/python3.6 2 which helps in changing versions of python.
However, after doing so, my pip is not working now.
I have the following files in /usr/local/bin:pip,pip2.7,pip3,pip3.5,pip3.6.
I tried removing pip so that i can reinstall it using sudo apt-get remove python-pip but it gives the following error:
pi#raspberrypi:/usr/local/bin $ sudo apt-get remove python-pip
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libpython-all-dev python-all python-all-dev python-keyring
python-keyrings.alt python-secretstorage python-wheel
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
python-pip
0 upgraded, 0 newly installed, 1 to remove and 6 not upgraded.
1 not fully installed or removed.
After this operation, 671 kB disk space will be freed.
Do you want to continue? [Y/n] y
Traceback (most recent call last):
File "/usr/bin/apt-listchanges", line 29, in <module>
import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
(Reading database ... 138007 files and directories currently installed.)
Removing python-pip (9.0.1-2+rpt2) ...
File "/usr/bin/pyclean", line 63
except (IOError, OSError), e:
^
SyntaxError: invalid syntax
dpkg: error processing package python-pip (--remove):
subprocess installed pre-removal script returned error exit status 1
Traceback (most recent call last):
File "/usr/bin/pycompile", line 35, in <module>
from debpython.version import SUPPORTED, debsorted, vrepr, \
File "/usr/share/python/debpython/version.py", line 24, in <module>
from ConfigParser import SafeConfigParser
ModuleNotFoundError: No module named 'ConfigParser'
dpkg: error while cleaning up:
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
python-pip
E: Sub-process /usr/bin/dpkg returned an error code (1)
which suggests that apt_pkg (or some problem with apt-get).
when i do pip --version , i get:
Traceback (most recent call last):
File "/usr/local/bin/pip", line 6, in <module>
from pkg_resources import load_entry_point
ModuleNotFoundError: No module named 'pkg_resources'
I just want to have python 3.6 and 2.7(since i have already installed libraries on 2.7) with functional pip.
Why don't you install miniconda for ARM and get Python and all important packages at once ?
wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-armv7l.sh
sudo md5sum Miniconda3-latest-Linux-armv7l.sh
sudo /bin/bash Miniconda3-latest-Linux-armv7l.sh
sudo reboot -h now
I think you aren't aware that most linux distros come shipped with python2 AND python3. By typing python and pip you will use your operating systems python2 and pip2 version.
What you probably want is using python3 and pip3 instead.
Something like "upgrading" from python2 to python3 is not possible because it's a fundamental difference and they are incompatible. This is why you have both installed.
Uninstalling or upgrading your systems python interpreter is a terrible bad idea, because your system needs them. For professional usage you should think about version control again, but for your first (and second) steps in python it's totally fine to use the preinstalled python interpreter of your OS.
Solutions like pyenv or virtualenv are very powerfull tools, but you probably don't want to start with it.
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 just installed Gubbins using their homebrew instructions. Everything seemed to go smoothly and gubbins is now in /usr/local/Cellar/gubbins/1.1.1/bin/gubbins. I'm supposed to be able to use it by running their script run_gubbins.py and giving it an input file. But I get the following error:
>$ /usr/local/Cellar/gubbins/1.1.1/usr/bin/run_gubbins.py test.fasta
Traceback (most recent call last):
File "/usr/local/Cellar/gubbins/1.1.1/usr/bin/run_gubbins.py", line 25, in <module>
from gubbins import common
ImportError: No module named gubbins
Looking inside the run_gubbins.py script I see that the first things it does is
import sys
sys.path.append(".")
import argparse
from gubbins import common
So what might be happening? How come the script within a program package is not recognizing the program it came with? Is there anything I can do to fix this? Thank you so much.
Install homebrew from brew.sh
Open a terminal and enter these commands
curl https://bootstrap.pypa.io/ez_setup.py | python - --user
export PATH=~/Library/Python/2.7/bin:${PATH}
easy_install pip
pip install --user dendropy
pip install --user biopython
pip install --user reportlab
brew tap homebrew/science
brew install http://sanger-pathogens.github.io/gubbins/fastml.rb
brew install http://sanger-pathogens.github.io/gubbins/gubbins.rb
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!