使用 pip3: module“ import lib_bootstrap”没有属性“ SourceFileLoader”

Faced the same problem. I think this is because python3.6 and pip3 were installed from different sources. I suggest using python's inbuilt facility to install pip i.e

python3 -m ensurepip --upgrade

This should install pip3 and pip3.x where x in python3.x. Same works for python2 also.

I met the same problem, this is the key:

curl -sS https://bootstrap.pypa.io/get-pip.py | sudo python3

If you're getting this error running pip install dotenv, this is because the package is called python-dotenv not dotenv.

This worked for me:

sudo pip install python-dotenv

When updating from python3.4 to python3.6 on ubuntu 14.04. The following solved me:

wget https://bootstrap.pypa.io/ez_setup.py -O - | python3

That's because you are using an old version of setuptools, check up this issue.

I had the same problem on my ubuntu 18.04 with python 3.6. None of the above methods helped, but this one solved the problem:

pip3 uninstall setuptools

I am facing the same problem, which is solved by downloading the source files of the setuptools and installing the module manually.

The setuptools can be downloaded here:

https://pypi.org/project/setuptools/

After downloading, unzip the package first, then cd to the directory and run

python setup.py install --user

I had the same issue when I tried to install the Slate package in Windows 10, Python 3.7.4 version:

AttributeError: module 'importlib._bootstrap' has no attribute 'SourceFileLoader'

The instruction that generated the error:

C:\WINDOWS\system32>python -m pip install slate

The instruction that worked:

C:\WINDOWS\system32>python -m pip install https://github.com/timClicks/slate/archive/master.zip

For me the error happened while trying to create a virtual env with python 3.8:

sudo virtualenv venv -ppython3.8

And after trying all the answers here, finally the problem solved by installing the new version of virtualenv (20.0.7):

sudo pip3 install virtualenv

Traceback (most recent call last):
File "/usr/bin/pipenv", line 6, in <module>
from pkg_resources import load_entry_point
File "/home/myuser/.local/lib/python3.7/site-packages/pkg_resources.py", line
1479, in <module>

Mine looked pretty similar, but for some reason I had a python installation in my home directory .local folder.

I did some of the other answers in this thread to ensure I had good local copy of python, then did:

rm -rf ~/.local

I had the same problem with my cloud computer. If all above didn't work for you don't worry. Here's how I resolved it:

1. Download the pip file (pip-version.tar.gz) from:

https://pypi.org/project/pip/#files

For cloud, use this

curl https://files.pythonhosted.org/packages/8e/76/66066b7bc71817238924c7e4b448abdb17eb0c92d645769c223f9ace478f/pip-20.0.2.tar.gz --output pip.tar.gz

2. Extract the content of the file and cd into the directory.
3. Run the following in the directory

python3 setup.py install --user

You should have pip3 working without errors.

Tried to install Tensorflow in venv on Windows 10 machine with python 3.8 and got the same issue.

What helped for me was:

pip install setuptools --upgrade

If you face this issue in anaconda environment, simply upgrade setuptools using the following:

conda install -c conda-forge setuptools

I had faced the same issue on Ubuntu 19.10 and now I upgraded to Ubuntu 20.04 and faced the issue again. This issue is due to broken pip3. So whenever you enter pip3 and hit enter it will show the same error. So instead of using "pip3 uninstall setuptools" use the below code

python3 -m pip uninstall setuptools

It resolved my issue 3rd time

pip install setuptools --upgrade

This command fixed my problem.

Just go inside the /usr/lib/python3/dist-packages/, first copy setuptools file somewhere and then delete the setuptools. Everything will be okay for deleting you can use:

sudo rm -r setuptools

for copying

sudo cp -r setuptools /...Desktop/

After that if it gives errors just:

sudo pip3 install setuptools==3.8.1

to download again.

I encountered this error message triggered by a slightly different situation which I'll mention here for anyone who finds this.

This same error also occurs when installing the distribute Python package (which is currently just a compatibility layer in front of setuptools) in Python 3.6 or newer.

In my specific situation I discovered this as I was using ABC0 which has been somewhat abandoned and depends on distribute.

Collecting distribute
Downloading distribute-0.7.3.zip (145 kB)
ERROR: Command errored out with exit status 1:
command: /var/lang/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-ssqyqflj/distribute/setup.py'"'"'; __file__='"'"'/tmp/pip-install-ssqyqflj/distribute/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-hgbjn0js
cwd: /tmp/pip-install-ssqyqflj/distribute/
Complete output (15 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-install-ssqyqflj/distribute/setuptools/__init__.py", line 2, in <module>
from setuptools.extension import Extension, Library
File "/tmp/pip-install-ssqyqflj/distribute/setuptools/extension.py", line 5, in <module>
from setuptools.dist import _get_unpatched
File "/tmp/pip-install-ssqyqflj/distribute/setuptools/dist.py", line 7, in <module>
from setuptools.command.install import install
File "/tmp/pip-install-ssqyqflj/distribute/setuptools/command/__init__.py", line 8, in <module>
from setuptools.command import install_scripts
File "/tmp/pip-install-ssqyqflj/distribute/setuptools/command/install_scripts.py", line 3, in <module>
from pkg_resources import Distribution, PathMetadata, ensure_directory
File "/tmp/pip-install-ssqyqflj/distribute/pkg_resources.py", line 1518, in <module>
register_loader_type(importlib_bootstrap.SourceFileLoader, DefaultProvider)
AttributeError: module 'importlib._bootstrap' has no attribute 'SourceFileLoader'

I had the same error whatever I asked to pip. I gave a look to this page: https://packaging.python.org/tutorials/installing-packages/

That line is the one that solved my problem:

python3 -m pip install --upgrade pip setuptools wheel

pip3 install setuptools --upgrade

This also cured the issue on Python 3.9 running on Windows 10 and even on a custom Docker image.

I was having the same issue while using docker-compose. This exact error can be caused by not being the root user. Running the same commands with sudo fixed it for me. I don't not have setup-tools installed, and I'm running pip3. My issue was that IntelliJ didn't have sudo rights, so i had to do it from the terminal.

Above solutions were not working in my case for Ubuntu 20

If you run the following command:

sudo apt install python3-setuptools

Then you might get the result:

Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-setuptools is already the newest version (45.2.0-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

But to actually solve it and re-install setuptools try following commands:

sudo apt download python3-setuptools
sudo dpkg -i python3-setuptools_45.2.0-1_all.deb

Note: Change the version of the python package that is downloaded