We Keep Coding

PyQt5 dependency in a module on Debian [duplicate]

This question already has answers here:
Install PyQt5 5.14.1 on Linux
(8 answers)
Closed 3 years ago.
I have a Python module with a __main__ that uses PyQt5. I've installed PyQt5 on a Debian Buster box:
apt-get install python3-pyqt5
The __main__ program runs as expected if I execute
python3 mymodule/__main__.py
from the source directory. Now I've installed the module into python:
python3 setup.py install
That worked. The setup.py lists a dependency on pyqt5:
setup(
# ...
install_requires=['PyQt5'],
entry_points={"gui_scripts": ["mymodule = mymodule.__main__:main"]},
Setup created a script /usr/local/bin/mymodule. When I run that, I get an error message:
pkg_resources.DistributionNotFound: The 'PyQt5' distribution was not found and is required by mymodule
What am I missing?
EDIT: tried installing pyqt5 via pip, got the following error:
seva#sandbox:~$ sudo pip3 install pyqt5
Collecting pyqt5
Using cached https://files.pythonhosted.org/packages/3a/fb/eb51731f2dc7c22d8e1a63ba88fb702727b324c6352183a32f27f73b8116/PyQt5-5.14.1.tar.gz
Installing build dependencies ... done
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python3.7/tokenize.py", line 447, in open
buffer = _builtin_open(filename, 'rb')
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-install-26kj5hrc/pyqt5/setup.py'
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-26kj5hrc/pyqt5/

OS-level package managers are designed to be consistent within itself. But they aren't designed to interoperate with language package managers. apt-get-installed python3-pyqt5 could be recognized by other Debian packages but not by pip/setuptools.
So either you convert your package to .deb (using stdeb, for example), set dependency to python3-pyqt5 and install it with apt/apt-get/dpkg. Or you install everything using pip:
pip install pyqt5
pip install . # to install your package
If your dependencies are properly declared in the package the latter command should be enough — pip will run the former itself.
PS. Also please consider virtualenv to separate pip-installed packages from system-installed. virtualenv itself could be system-installed or user-installed:
apt install python3-virtualenv
or
pip install [--user] virtualenv

ImportError: No module named 'gdbm' occuring while using source ~/.bashrc

Hey after making some changes in the bashrc I tried to use
source ~/.bashrc
but got the following error
baaz#FireStorm:~$ source ~/.bashrc
Traceback (most recent call last):
File "/usr/lib/python3.5/dbm/gnu.py", line 4, in <module>
from _gdbm import *
ImportError: No module named '_gdbm'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 7, in <module>
import dbm.gnu as gdbm
File "/usr/lib/python3.5/dbm/gnu.py", line 6, in <module>
raise ImportError(str(msg) + ', please install the python3-gdbm package')
ImportError: No module named '_gdbm', please install the python3-gdbm package
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/command-not-found", line 27, in <module>
from CommandNotFound.util import crash_guard
File "/usr/lib/python3/dist-packages/CommandNotFound/__init__.py", line 3, in <module>
from CommandNotFound.CommandNotFound import CommandNotFound
File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 9, in <module>
import gdbm
ImportError: No module named 'gdbm'
I tried using the install commands as mentioned in the error
baaz#FireStorm:~$ sudo apt-get install python3-gdbm
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-gdbm is already the newest version (3.6.5-3~16.04.york0.2).
python3-gdbm set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Also some solutions mentioned to use version specific commands, but still got no solution
baaz#FireStorm:~$ sudo apt-get install python3.5-gdbm
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python3.5-gdbm is a virtual package provided by:
python3-gdbm 3.5.1-1 [Not candidate version]
E: Package 'python3.5-gdbm' has no installation candidate
The pip install command gave the following error
baaz#FireStorm:~$ sudo pip3 install gdbm --upgrade
The directory '/home/baaz/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/baaz/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting gdbm
Could not find a version that satisfies the requirement gdbm (from versions: )
No matching distribution found for gdbm
Please suggest a way to sort out these error.

Your error is occurring most likely because your .bashrc contains a typo somewhere, therefore command-not-found is being called, but command-not-found appears to have been recently broken. (You should get the same error if you type some nonsense into your terminal directly.)
sudo apt install python3-gdbm=3.5.1-1
worked for me.
From running
dpkg -L python3-gdbm
it looked like gdbm on my computer is being installed to python3.6 for some reason, not python3.5, but my python3 version is python3.5 (and last I checked python3.6 breaks something on ubuntu 16.04).
The error you got when you ran
sudo apt-get install python3.5-gdbm
complained about a version issue, hence manually installing the version they noted worked.

This worked for me:
sudo ln -s /usr/lib/python3.6/lib-dynload/_gdbm.cpython-36m-x86_64-linux-gnu.so /usr/lib/python3.5/lib-dynload/_gdbm.cpython-35m-x86_64-linux-gnu.so
Note the 35m in the the link's name.

PyEZ: 'EntryPoint' object has no attribute 'resolve'

PyEZ user are facing issue with respect to subject line error
from jnpr.junos import Device
>>> dev = Device(host='xxx',user='xxxx',passwd='xxx')
>>> dev.open()
No handlers could be found for logger "ncclient.transport.ssh"
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Python/2.7/site-packages/jnpr/junos/device.py", line 483, in open
raise cnx_err
jnpr.junos.exception.ConnectError: ConnectError(host: esc-elit-01.dcbg.juniper.net, msg: 'EntryPoint' object has no attribute 'resolve')

Install cryptography 1.2.1 using below command
sudo pip install cryptography==1.2.1
or upgrade distribute
sudo pip install -U distribute
Ref:
https://github.com/mozilla/sops/issues/67
https://github.com/ARMmbed/yotta/issues/764

The "python-pip" package installs an old version of distribute/setuptools that is incompatible with versions of cryptography >= 1.3.
The cryptography library specifies a dependency on setuptools >= 11.3:
https://github.com/pyca/cryptography/blob/master/setup.py#L40
However, this requirement isn't getting met because setuptools has been installed by the OS's packaging system rather than by pip. When pip tries to upgrade setuptools, the upgrade fails (but doesn't cause the installation of cryptography to actually fail.)
Running:
sudo pip install -U distribute
Forces setuptools to be upgraded (the distribute package has been renamed to setuptools in later releases). You could also do:
sudo pip install -U setuptools

Install pip failed

i am using redhat 5.3
I using following command to update python to 2.7. (it was python 2.4 before update)
# xz -d Python-2.7.6.tar.xz
# tar xvf Python-2.7.6.tar
# cd Python-2.7.6/
# ./configure
# make && make install
And I Install the python-setuptools
# yum install python-setuptools
Then I install the pip print the error
^
SyntaxError: invalid syntax
File "/usr/lib/python2.4/site-packages/pip-1.5.6-py2.4.egg/pip/_vendor/colorama/__init__.py", line 2
from .initialise import init, deinit, reinit
^
SyntaxError: invalid syntax
File "/usr/lib/python2.4/site-packages/pip-1.5.6-py2.4.egg/pip/_vendor/colorama/winterm.py", line 2
from . import win32
^
SyntaxError: invalid syntax
Adding pip 1.5.6 to easy-install.pth file
Installing pip script to /usr/bin
Installing pip2 script to /usr/bin
Installing pip2.4 script to /usr/bin
Installed /usr/lib/python2.4/site-packages/pip-1.5.6-py2.4.egg
Processing dependencies for pip
And I run the command pip , it print following errors:
# pip
Traceback (most recent call last):
File "/usr/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 2603, in <module>
File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 666, in require
File "/usr/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 565, in resolve
pkg_resources.DistributionNotFound: pip==1.5.6
And I try to uninstall that, it tell me that:
[root#linkea-dev-srv1 /]# yum remove pip
Loaded plugins: fastestmirror
Repository base is listed more than once in the configuration
Setting up Remove Process
No Match for argument: pip
Loading mirror speeds from cached hostfile
No Packages marked for removal
You have new mail in /var/spool/mail/root
So I try to reinstall pip by python get-pip.py.
It also has error.
# python get-pip.py
Traceback (most recent call last):
File "get-pip.py", line 17474, in <module>
main()
File "get-pip.py", line 17466, in main
bootstrap(tmpdir=tmpdir)
File "get-pip.py", line 17406, in bootstrap
import pip
File "/tmp/tmpB9jhvw/pip.zip/pip/__init__.py", line 9, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/log.py", line 9, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/_vendor/colorama/__init__.py", line 2, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/_vendor/colorama/initialise.py", line 5, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/_vendor/colorama/ansitowin32.py", line 6, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/_vendor/colorama/winterm.py", line 2, in <module>
File "/tmp/tmpB9jhvw/pip.zip/pip/_vendor/colorama/win32.py", line 7, in <module>
File "/usr/local/lib/python2.7/ctypes/__init__.py", line 10, in <module>
from _ctypes import Union, Structure, Array
ImportError: No module named _ctypes

You should be very careful when upgrading Python on RedHat (including Fedora/CentOS) because a large majority of the system applications rely on the bundled version of Python. This is especially true of yum, which relies on the version of Python that comes bundled with the operating system.
In short - if you upgrade the version of Python on RedHat/CentOS/Fedora, yum will not work correctly.
To install a different version of Python on these distributions, you have two main options. One is to find someone that has released a rpm, download an install that; but you may have to deal with dependencies on your own.
The other (simpler) option is to download the source of Python, compile it and then install it separately (using altinstall).
You'll need to install the following packages first:
yum groupinstall "Development tools"
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel
Next, download the source and extract it. As of this writing, the latest version is 2.7.8:
wget "https://www.python.org/ftp/python/2.7.8/Python-2.7.8.xz"
tar xvf Python-2.7.8.xz
cd Python-2.7.8
Now you have to build and install Python to an alternate location, with the following:
./configure --prefix=/usr/local
make && make altinstall
Once this is done, you'll have /usr/local/bin/python2.7 available to you. Next, you'll want to install pip for this version of Python. To do that, first install setuptools:
wget "https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py"
/usr/local/bin/python2.7 ez_setup.py
/usr/local/bin/easy_install-2.7 pip
The final step is to make sure that this version of Python is available to you. You can add /usr/local/bin/ to your $PATH by modifying your shell's environment (for example, adding it in $HOME/.bashrc); or you can as root create symbolic links in /usr/bin/ to these utilities. Make sure you give them version-specific tags:
ln -sf /usr/local/bin/python2.7 /usr/bin/python2.7
ln -sf /usr/local/bin/pip /usr/local/bin/pip2.7
This will keep your default Python to the system's version (recommended), and then give you the option to use 2.7 when needed.

Easy_install and Pip doesn't work

Easy_install and Pip doesn't work anymore on python 2.7, when I try to do:
sudo easy_install pip
I get:
Traceback (most recent call last):
File "/usr/bin/easy_install", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/bin/lib/python2.7/site-packages/distribute-0.6.19-py2.7.egg/pkg_resources.py", line 2713, in <module>
parse_requirements(__requires__), Environment()
File "/usr/bin/lib/python2.7/site-packages/distribute-0.6.19-py2.7.egg/pkg_resources.py", line 584, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: distribute==0.6.15
And when I try:
sudo pip install [package]
I get:
Traceback (most recent call last):
File "/usr/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/bin/lib/python2.7/site-packages/distribute-0.6.19-py2.7.egg/pkg_resources.py", line 2713, in <module>
parse_requirements(__requires__), Environment()
File "/usr/bin/lib/python2.7/site-packages/distribute-0.6.19-py2.7.egg/pkg_resources.py", line 584, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: pip==0.8.2
I've already install both of them (and yes, first deleted them), but no result...
Thanks!
(I tried already this post)

I had this issue where python's distribute package wasn't installed for some reason. After following the instructions on python-distribute, i got it working.
install the distribute package as follows:
$ wget https://web.archive.org/web/20100225231201/http://python-distribute.org/distribute_setup.py
$ python distribute_setup.py
EDIT: http://python-distribute.org/distribute_setup.py no longer works:
hopefully this will resolve your problem with running
$ sudo easy_install
Happy Coding!

If you installed a new version of easy_install through Distribute, the new command may have been installed in another directory, most likely /usr/local/bin/. But the traceback shows you were using /usr/bin/easy_install. Try this:
sudo /usr/local/bin/easy_install ...

Try
sudo easy_install Distribute
and if that exists, but is too old
sudo easy_install -U Distribute
Looks like either Distribute/setuptools (it's old name) is messed up or Python package settings. If either of these do not help, try removing the full Python 2.7 installation and reinstall everything from the scratch.
Possible reasons for the mess is that you have used both sudo easy_install / sudo pip and Linux distribution packages to mix and match system-wide installation packages. You should use virtualenv instead if you use pip/easy_install (no sudo needed)
http://pypi.python.org/pypi/virtualenv

I had a similar problem, but things were working fine as root. In my case, I found that the permissions on the python packages were not readable by the ID I was running the command under.
To correct it, I ran the following command to open the permission for read and execute to all users:
sudo chmod o+rx -R /usr/local/lib/python2.7/dist-packages/*.egg

I had similar issue when trying to install package via pip with python 3.6 on windows. (pip is supposed to work out of the box with this install)
The problem was not running as administrator.
Running cmd as administrator and then installing my package worked:
python -m pip install pylint

I was trying to get pip to work on the 2.7.0 version, but it seems like it doesn't come with the easy_install/pip files (Script folder in main directory), installing 2.7.13 solved the problem for me.