GoogleScraper (Python Script) error: "pkg_resources.DistributionNotFound: aiohttp" - python-3.x

I am trying to get GoogleScraper Python script working on Ubuntu 14.04 LTS, but am getting the following error when I type "./GoogleScraper -h"
<code>
./GoogleScraper -h
Traceback (most recent call last):
File "./GoogleScraper", line 5, in <module>
from pkg_resources import load_entry_point
File "/home/roger/env/lib/python3.4/site-packages/pkg_resources.py", line 2716, in <module>
working_set.require(__requires__)
File "/home/roger/env/lib/python3.4/site-packages/pkg_resources.py", line 685, in require
needed = self.resolve(parse_requirements(requirements))
File "/home/roger/env/lib/python3.4/site-packages/pkg_resources.py", line 588, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: aiohttp
</code>
What do I do to install this aiohttp package? I googled and was a little confused.
Here is my "Python -V" output
roger#vbox-ubuntu:~/env/bin$ python -V
Python 2.7.6
roger#vbox-ubuntu:~/env/bin$ python3 -V
Python 3.4.0
I also ran the following prior:
virtualenv --python python3 env
source env/bin/activate
pip install GoogleScraper
sudo apt-get install python3-pip
sudo pip3 install aiohttp


sudo pip3 install aiohttp
should fix your problem (preceded by sudo apt-get install python3-pip if pip is not installed yet)


Looks like much of my problem was running "sudo apt-get install" in my local environment.
My fix was starting with a fresh Ubuntu 14.04 LTS install and then running the following:
sudo apt-get install python-virtualenv python3-pip liblz-dev python-dev libxml2-dev libxslt-dev zlib1g-dev python3-dev libmysqlclient-dev ubuntu-desktop chromium-chromedriver google-chrome-stable
After that, I ran the following commands on the author's website:
virtualenv --python python3 env
source env/bin/activate
pip install GoogleScraper
sudo pip3 install aiohttp
After that, I was able to get "GoogleScraper -h" to output the help file, as expected.

Related

Unable to run NanoPlot due to import error from Scipy

I am new to python and I'm trying to run NanoPlot 1.40.0 on my Ubuntu 20.04.4 LTS.
When I try to run NanoPlot I receive this error:
Traceback (most recent call last):
File "/home/grid/.local/bin/NanoPlot", line 5, in <module>
from nanoplot.NanoPlot import main
File "/home/grid/.local/lib/python3.7/site-packages/nanoplot/NanoPlot.py", line 18, in <module>
from scipy import stats
File "/usr/lib/python3/dist-packages/scipy/__init__.py", line 119, in <module>
from scipy._lib._ccallback import LowLevelCallable
File "/usr/lib/python3/dist-packages/scipy/_lib/_ccallback.py", line 1, in <module>
from . import _ccallback_c
ImportError: cannot import name '_ccallback_c' from 'scipy._lib' (/usr/lib/python3/dist-packages/scipy/_lib/__init__.py)
Some background info; there was an initial Python2.7 and I upgraded to the python3.7 version - made this my default. Scipy was installed using sudo apt-get install python3-scipy. The version is Scipy 1.3.3
When I installed NanoPlot, it was done using pip and not pip3 with the pip install NanoPlot and then pip install NanoPlot --upgrade
After installation, I got this message
Script nanoplot is installed in home/grid/.local/bin which is not on
PATH.
So I then edited the path using nano ~/.bashrc to include home/grid/.local/bin and executed using source ~/.bashrc I checked $PATH to verify the change and the directory was added. But I always receive the callback error. I uninstalled Scipy, reinstalled it, didn't work. Did all the updates, didn't work.
Any help on how I can rectify this callback error would be really appreciated. Thank you in advance for your time!

UPDATE: RESOLVED!
I uninstalled scipy using sudo apt-get autoremove python3-scipy
Also did a purge to check if any config files remained sudo apt-get purge python3-scipy
Reinstalled scipy using pip3 install --user scipy
Did an update sudo apt-get update
Uninstalled Nanoplot pip3 uninstall NanoPlot
Installed it back pip3 install NanoPlot
Did an upgrade pip3 install NanoPlot --upgrade
Tested a code NanoPlot -h
Worked!

Unable to install pyinstaller in Ubuntu 16 with Python3.5

I have ubuntu16 which comes with python3.5 pre installed. I have installed pyinstaller using:
sudo pip3 install pyinstaller
It ran fine and installed pyinstaller. After that I ran, pyinstaller it says command not found.
I also tried installing it like:
sudo python3 -m pip install pyinstaller
It ran fine and said requirement already satisfied. But was unable to run pyinstaller.
I then upgraded the pip using sudo python3 -m pip install --upgrade pip and then reinstalled pyinstaller but this time used --user flag:
sudo python3 -m pip install pyinstaller --user
After this command it installed pyinstaller along with some other packages too.
Now if I run pyinstaller on terminal, I get this error:
Traceback (most recent call last):
File "/home/andrew/.local/bin/pyinstaller", line 5, in <module>
from PyInstaller.__main__ import run
ImportError: No module named 'PyInstaller'
Running the command sudo python3 -m pip list to get all the installed packages, I can see pyinstaller in the list:
pycurl 7.43.0
pygobject 3.20.0
pyinstaller 4.0
pyinstaller-hooks-contrib 2020.9
PyJWT 1.3.0
I am really confused as to what I should do in order to successfully install and run pyinstaller. Can anyone please help and suggest some good working solutions. Thanks

Okay I think I have finally managed to run pyinstaller on ubuntu16.
I am not sure if its the issue with Ubuntu16 or python3.5, but we need to upgrade the python version. So I first installed python3.6 using below commands:
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.6
After the installation, I made sure that running python3 is invoking the python3.6 and not python3.5:
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
sudo update-alternatives --config python3
After this if you type in python3, it should launch python3.6.
Once this is all done, just upgrade pip :
sudo python3 -m pip install --upgrade pip
after that you can install pyinstaller:
sudo pip3 install pyinstaller
also run this command:
sudo apt-get install python3.6-dev
otherwise you will get python lib not found error in pyinstaller build
and it will install and work fine.
I think pyinstaller is not working with python3.5 as this python version is also deprecated. So we need to upgrade the python version. So if any one is on ubuntu16 which has python3.5 as default, just upgrade your python version.

unable to import PySimpleGUI

I am trying to explore PySimpleGUI.
Following this link PySimpleGUI
But when I do,
import PySimpleGUI
getting error as,
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.7/site-packages/PySimpleGUI/__init__.py", line 2, in <module>
from .PySimpleGUI import *
File "/usr/local/lib/python3.7/site-packages/PySimpleGUI/PySimpleGUI.py", line 4, in <module>
import tkinter as tk
File "/usr/local/lib/python3.7/tkinter/__init__.py", line 36, in <module>
import _tkinter # If this fails your Python may not be configured for Tk
ModuleNotFoundError: No module named '_tkinter'
I tried,
sudo apt-get install python3-tk
and
sudo apt-get install python3.7-tk
but could not get rid of the above mentioned error.
My current system details:
OS - Ubuntu 19.04
python - Python 3.7.3
PySimpleGUI - 3.29.0
tcl - 8.6.9
How to solve this issue?

Now I am able to solve the issue, for that I used pyenv and install python through pyenv.
I used the following steps:
curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash
sudo apt update && sudo apt upgrade
sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev git
Add to ~/.bashrc
export PATH="~/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
Reload bashrc
source ~/.bashrc
Install python latest version
pyenv install 3.7.0
list python versions
pyenv versions
set global version
pyenv global 3.7.0
check python version
python -V
install PySimpleGUI
pip3 install PySimpleGUI
That's it, now I am able to import PySimpleGUI.
import PySimpleGUI

tk is already in python - you don't need to install it.
You can try these steps:
- reinstall the python3
- (on UNIX* OS) use pip3, not pip
- pip3 install PySimpleGUI
- pip3 install --upgrade --force PySimpleGUI

You can try this to list all packages under pip. Tkinter should be installed by default and PySimpleGUI should show up in the list.
python -m pip list

I solved this problem by using Conda
I uninstalled python and installed python through Conda. Then I created a new project that uses Conda as the env and simply chose which version of Python I wanted, and then it worked.

Creating a virtualenv for python3.7.0 in ubuntu is not working

Following is display in my terminal:
Running virtualenv with interpreter /usr/local/bin/python3.7
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/virtualenv.py", line 22, in <module>
import zlib
ModuleNotFoundError: No module named 'zlib'
How can i fix this?

First of all, to make sure your virtualenv does not work. I suggest that you should try something simpler for debugging:
print("Hello World!")
If this line of code works then your problem is that you don't have zlib installed properly.
No module named 'zlib'
Otherwise, please update the error while your environment running the print command for more co

looks like your python at system level is not configured correctly.
try following:
apt remove virtualenv # remove virtualenv
apt-get install -y -q zlib1g-dev python-pip # install zlib, python-pip
wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz
tar xzf Python-3.7.4.tgz
cd Python-3.7.4
./configure --enable-optimizations --enable-loadable-sqlite-extensions
--enable-ipv6 --with-cxx-main=/usr/bin/gcc --with-ensurepip
make -j $(getconf _NPROCESSORS_ONLN) altinstall
pip3 install virtualenv==16.0.0
virtualenv -p "python3.7" xyz

pip3 install not working - No module named 'pip._vendor.pkg_resources'

When trying to install a package for Python 3 (in Ubuntu), using pip3 install packageName (or sudo pip3 install packageName), I get the following error message:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/_vendor/__init__.py", line 33, in vendored
__import__(vendored_name, globals(), locals(), level=0)
ImportError: No module named 'pip._vendor.pkg_resources'
I have been reading for days and have tried the following WITHOUT any success:
Un-installing and re-installing pip3 using the following code: sudo apt-get remove python3-pip followed by sudo apt-get install python3-pip. This was suggested in several posts that say that sometimes pip3 doesn't install properly for Ubuntu. However, it didn't work.
Other post suggested it was an ssl package problem and that if the ssl package doesn't load on Python3, that's the issue. However the following command does not raise any error: python3 -c "import ssl".
Some other post suggested the problem was with the requests package. I then tried sudo apt-get remove python3-requests followed by sudo apt-get install python3-requests also to no avail.
Other information you may need:
pip3 --version gives me the same error reported above.
dpkg -L python3-pip gives me the following information:
/.
/usr
/usr/lib
/usr/lib/python3
/usr/lib/python3/dist-packages
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/PKG-INFO
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/dependency_links.txt
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/not-zip-safe
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/requires.txt
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/entry_points.txt
/usr/lib/python3/dist-packages/pip-8.1.1.egg-info/top_level.txt
/usr/lib/python3/dist-packages/pip
/usr/lib/python3/dist-packages/pip/baseparser.py
/usr/lib/python3/dist-packages/pip/__main__.py
/usr/lib/python3/dist-packages/pip/req
/usr/lib/python3/dist-packages/pip/req/req_set.py
/usr/lib/python3/dist-packages/pip/req/req_install.py
/usr/lib/python3/dist-packages/pip/req/__init__.py
/usr/lib/python3/dist-packages/pip/req/req_file.py
/usr/lib/python3/dist-packages/pip/req/req_uninstall.py
/usr/lib/python3/dist-packages/pip/index.py
/usr/lib/python3/dist-packages/pip/status_codes.py
/usr/lib/python3/dist-packages/pip/utils
/usr/lib/python3/dist-packages/pip/utils/setuptools_build.py
/usr/lib/python3/dist-packages/pip/utils/appdirs.py
/usr/lib/python3/dist-packages/pip/utils/outdated.py
/usr/lib/python3/dist-packages/pip/utils/ui.py
/usr/lib/python3/dist-packages/pip/utils/logging.py
/usr/lib/python3/dist-packages/pip/utils/encoding.py
/usr/lib/python3/dist-packages/pip/utils/deprecation.py
/usr/lib/python3/dist-packages/pip/utils/__init__.py
/usr/lib/python3/dist-packages/pip/utils/filesystem.py
/usr/lib/python3/dist-packages/pip/utils/hashes.py
/usr/lib/python3/dist-packages/pip/utils/build.py
/usr/lib/python3/dist-packages/pip/compat
/usr/lib/python3/dist-packages/pip/compat/dictconfig.py
/usr/lib/python3/dist-packages/pip/compat/__init__.py
/usr/lib/python3/dist-packages/pip/compat/ordereddict.py
/usr/lib/python3/dist-packages/pip/models
/usr/lib/python3/dist-packages/pip/models/index.py
/usr/lib/python3/dist-packages/pip/models/__init__.py
/usr/lib/python3/dist-packages/pip/vcs
/usr/lib/python3/dist-packages/pip/vcs/bazaar.py
/usr/lib/python3/dist-packages/pip/vcs/subversion.py
/usr/lib/python3/dist-packages/pip/vcs/mercurial.py
/usr/lib/python3/dist-packages/pip/vcs/__init__.py
/usr/lib/python3/dist-packages/pip/vcs/git.py
/usr/lib/python3/dist-packages/pip/cmdoptions.py
/usr/lib/python3/dist-packages/pip/basecommand.py
/usr/lib/python3/dist-packages/pip/commands
/usr/lib/python3/dist-packages/pip/commands/completion.py
/usr/lib/python3/dist-packages/pip/commands/install.py
/usr/lib/python3/dist-packages/pip/commands/hash.py
/usr/lib/python3/dist-packages/pip/commands/uninstall.py
/usr/lib/python3/dist-packages/pip/commands/__init__.py
/usr/lib/python3/dist-packages/pip/commands/list.py
/usr/lib/python3/dist-packages/pip/commands/search.py
/usr/lib/python3/dist-packages/pip/commands/show.py
/usr/lib/python3/dist-packages/pip/commands/download.py
/usr/lib/python3/dist-packages/pip/commands/wheel.py
/usr/lib/python3/dist-packages/pip/commands/freeze.py
/usr/lib/python3/dist-packages/pip/commands/help.py
/usr/lib/python3/dist-packages/pip/_vendor
/usr/lib/python3/dist-packages/pip/_vendor/__init__.py
/usr/lib/python3/dist-packages/pip/operations
/usr/lib/python3/dist-packages/pip/operations/__init__.py
/usr/lib/python3/dist-packages/pip/operations/freeze.py
/usr/lib/python3/dist-packages/pip/__init__.py
/usr/lib/python3/dist-packages/pip/locations.py
/usr/lib/python3/dist-packages/pip/pep425tags.py
/usr/lib/python3/dist-packages/pip/exceptions.py
/usr/lib/python3/dist-packages/pip/download.py
/usr/lib/python3/dist-packages/pip/wheel.py
/usr/share
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/pip3.1.gz
/usr/share/doc
/usr/share/doc/python3-pip
/usr/share/doc/python3-pip/copyright
/usr/bin
/usr/bin/pip3
/usr/share/doc/python3-pip/changelog.Debian.gz
How can I make pip3 work?
NOTE: pip for Python2 works just fine.
================================================
EDIT:
When trying to import setuptools in Python3 I get the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 11, in <module>
from setuptools.extern.six.moves import filterfalse, map
File "/usr/lib/python3/dist-packages/setuptools/extern/__init__.py", line 1, in <module>
from pkg_resources.extern import VendorImporter
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2927, in <module>
#_call_aside
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2913, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2952, in _initialize_master_working_set
add_activation_listener(lambda dist: dist.activate())
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 956, in subscribe
callback(dist)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2952, in <lambda>
add_activation_listener(lambda dist: dist.activate())
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2515, in activate
declare_namespace(pkg)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2097, in declare_namespace
_handle_ns(packageName, path_item)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2047, in _handle_ns
_rebuild_mod_path(path, packageName, module)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2066, in _rebuild_mod_path
orig_path.sort(key=position_in_sys_path)
AttributeError: '_NamespacePath' object has no attribute 'sort'
When running the following command sed -n '31,37p' < /usr/lib/python3/dist-packages/pip/_vendor/__init__.py in the terminal, I get the following:
try:
__import__(vendored_name, globals(), locals(), level=0)
except ImportError:
try:
__import__(modulename, globals(), locals(), level=0)
except ImportError:
===========================================
EDIT2:
My python3 --version is Python 3.5.2.
List of installed packages obtained running the code ls /usr/lib/python3/dist-packages.
apport
apport_python_hook.py
apt
aptdaemon
apt_inst.cpython-35m-x86_64-linux-gnu.so
apt_pkg.cpython-35m-x86_64-linux-gnu.so
aptsources
AptUrl
apturl-0.5.2.egg-info
beautifulsoup4-4.4.1.egg-info
blinker
blinker-1.3.egg-info
Brlapi-0.6.4.egg-info
brlapi.cpython-35m-x86_64-linux-gnu.so
bs4
cairo
_cffi_backend.cpython-35m-x86_64-linux-gnu.so
chardet
chardet-2.3.0.egg-info
checkbox_support
checkbox_support-0.22.egg-info
CommandNotFound
command_not_found-0.3.egg-info
cryptography
cryptography-1.2.3.egg-info
cups.cpython-35m-x86_64-linux-gnu.so
cupsext.cpython-35m-x86_64-linux-gnu.so
curl
cycler-0.9.0.egg-info
cycler.py
dateutil
dbus
_dbus_bindings.cpython-35m-x86_64-linux-gnu.so
_dbus_glib_bindings.cpython-35m-x86_64-linux-gnu.so
deb822.py
debconf.py
debian
debian_bundle
decorator-4.0.6.egg-info
decorator.py
defer
defer-1.0.6.egg-info
DistUpgrade
easy_install.py
feedparser-5.1.3.egg-info
feedparser.py
feedparser_sgmllib3.py
gi
guacamole
guacamole-0.9.2.egg-info
hpmudext.cpython-35m-x86_64-linux-gnu.so
html5lib
html5lib-0.999.egg-info
httplib2
httplib2-0.9.1.egg-info
idna
idna-2.0.egg-info
janitor
jinja2
Jinja2-2.8.egg-info
jwt
LanguageSelector
language_selector-0.1.egg-info
language_support_pkgs.py
louis
louis-2.6.4.egg-info
lsb_release.py
lxml
lxml-3.5.0.egg-info
mako
Mako-1.0.3.egg-info
markupsafe
MarkupSafe-0.23.egg-info
matplotlib
matplotlib-1.5.1.egg-info
matplotlib-1.5.1-nspkg.pth
mpl_toolkits
networkx
networkx-1.11.egg-info
numexpr
numexpr-2.4.3.egg-info
numpy
numpy-1.11.0.egg-info
NvidiaDetector
oauthlib
oauthlib-1.0.3.egg-info
Onboard
onboard-1.2.0.egg-info
orca
padme
padme-1.1.1.egg-info
pandas
pandas-0.17.1.egg-info
pcardext.cpython-35m-x86_64-linux-gnu.so
pexpect
pexpect-4.0.1.egg-info
PIL
Pillow-3.1.2.egg-info
pip
pip-8.1.1.egg-info
pkg_resources
plotly
plotly-1.9.5.egg-info
problem_report.py
ptyprocess
ptyprocess-0.5.egg-info
pyasn1
pyasn1-0.1.9.egg-info
pyatspi
__pycache__
pycups-1.9.73.egg-info
pycurl-7.43.0.egg-info
pycurl.cpython-35m-x86_64-linux-gnu.so
pygobject-3.20.0.egg-info
pygtkcompat
PyJWT-1.3.0.egg-info
pylab.py
pyparsing-2.0.3.egg-info
pyparsing.py
python_apt-1.1.0.b1_ubuntu0.16.04.1.egg-info
python_dateutil-2.4.2.egg-info
python_debian-0.1.27.egg-info
python_systemd-231.egg-info
pytz
pytz-2014.10.egg-info
pyxdg-0.25.egg-info
PyYAML-3.11.egg-info
Quirks
reportlab
reportlab-3.3.0.egg-info
requests
requests-2.9.1.egg-info
scanext.cpython-35m-x86_64-linux-gnu.so
scipy
scipy-0.17.0.egg-info
sessioninstaller
sessioninstaller-0.0.0.egg-info
setuptools
setuptools-20.7.0.egg-info
six-1.10.0.egg-info
six.py
softwareproperties
speechd
speechd_config
systemd
system_service-0.3.egg-info
tables
tables-3.2.2.egg-info
UbuntuDrivers
ubuntu_drivers_common-0.0.0.egg-info
UbuntuSystemService
ufw
ufw-0.35.egg-info
unattended_upgrades-0.1.egg-info
unity_scope_calculator-0.1.egg-info
unity_scope_chromiumbookmarks-0.1.egg-info
unity_scope_colourlovers-0.1.egg-info
unity_scope_devhelp-0.1.egg-info
unity_scope_firefoxbookmarks-0.1.egg-info
unity_scope_gdrive-0.7.egg-info
unity_scope_manpages-0.1.egg-info
unity_scope_openclipart-0.1.egg-info
unity_scope_texdoc-0.1.egg-info
unity_scope_tomboy-0.1.egg-info
unity_scope_virtualbox-0.1.egg-info
unity_scope_yelp-0.1.egg-info
unity_scope_zotero-0.1.egg-info
unohelper.py
uno.py
UpdateManager
urllib3
urllib3-1.13.1.egg-info
usbcreator
usb_creator-0.3.0.egg-info
wheel
wheel-0.29.0.egg-info
xdg
xdiagnose
xdiagnose-3.8.4.1.egg-info
xkit
xkit-0.0.0.egg-info
xlsxwriter
XlsxWriter-0.7.3.egg-info
yaml
_yaml.cpython-35m-x86_64-linux-gnu.so

This solved it for me:
curl -sS https://bootstrap.pypa.io/get-pip.py | python3
try use virtualenv for every specific project not messing with ubuntu subsystem.

I got this error on WSL Ubuntu and the most upvoted solution didn't work for me.
The one that works:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py --force-reinstall

Thanks #s_s.411
I solve this problem with the following commands:
curl -sS https://bootstrap.pypa.io/get-pip.py | sudo python3
type pip3
hash -r
pip3

I ran into the same problem, on Ubuntu 16.04, using the system python 3.5.2 like you, with pip installed via apt (sudo apt install python3-pip) like you, having installed some packages in my home directory with pip3 install --user like you (documented in your chat with hoefling).
The solution was as follows:
Temporarily move away all packages installed with pip3 install --user:
mv ~/.local/lib/python3.5/site-packages{,_backup}
This made pip3 work again, but of course I wanted to keep the packages. (Note: just moving out setuptools was not enough; I am not sure which constellation of packages caused this.)
Install an upgraded pip into home directory:
pip3 install --upgrade --user pip
Now the pip3 command fails (ImportError: cannot import name 'main') because it's still called from the old /usr/bin/pip3 location in the current shell, as indicated by type pip3. To solve this, run:
hash -r
Alternatively, you can always fall back to typing python3 -m pip instead of pip3.
Restore the packages:
mv ~/.local/lib/python3.5/site-packages{_backup/*,}
rmdir ~/.local/lib/python3.5/site-packages_backup
Now pip was working, but python3 -m 'import setuptools' failed with the same exception you saw, AttributeError: '_NamespacePath' object has no attribute 'sort'. This could be solved by uninstalling, then reinstalling the setuptools package in my home directory (uninstalling alone was not enough):
pip3 uninstall setuptools
pip3 install --user --upgrade setuptools
Finally, pip3 and the python3 -c 'import setuptools' are fine.

No module named 'pip._vendor.packaging'
The solution for me was to uninstall the system pipenv (installed with the package manager, pacman), and install pipenv from pip (which is managed with pyenv):
pip install pipenv
I no longer have issues when running pipenv install.

I tried all fixes on this page and it didn't work, finally I found out my virtualenv was broken and I had to reinstall the virtualenv like so
deactivate - deactivate first to be safe
virtualenv --python=/usr/bin/python3.8 /path/to/my_virtualenv_python3
source /path/to/my_virtualenv_python3/bin/activate - activate the env egain
Of course replace /path/to/my_virtualenv_python with your own path and python3.8 with a custom version of python if you don't use version 3.8 :)
Also please note this may or may not remove already installed packages, so just reinstall every requirements.txt you need afterwards.

I also have same problem and I solved it by this command.
pip uninstall pkg-resources==0.0.0

I use an old virtualenv version, it is OK.
The old version is 15.1.0.

I had a similar issue with Debian 11, my Debian has been updated to major releases several times and it looks like some files were not removed. I had to clean them:
# remove pip
sudo apt purge python3-pip
# check that the files don't belong to any package
dpkg -S /usr/share/python-wheels/* /usr/share/python-support/private/*
# remove the files
sudo rm -rfv /usr/share/python-wheels/ /usr/share/python-support/private/
# remove old files since Python is now 3.9
rm -rfv ~/.local/lib/python3.7/
# reinstall pip
sudo apt install python3-pip
And pip worked again.

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