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ContextualVersionConflict: (PyYAML 5.3.1 (/usr/lib/python3/dist-packages), Requirement.parse('pyyaml>=5.4.1'), {'kubernetes'})

`I am trying to install tutor on my Ubuntu v20 system. I went through the documentation and installed all the prerequisites such as Docker, docker copmpose and also started a proxy web server as stated in the documentation. I am getting the following message when I try to run tutor locally
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 584, in _build_master
ws.require(__requires__)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 901, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 792, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (PyYAML 5.3.1 (/usr/lib/python3/dist-packages), Requirement.parse('pyyaml>=5.4.1'), {'kubernetes'})
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/abhay/.local/bin/tutor", line 6, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3254, in <module>
def _initialize_master_working_set():
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3237, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3266, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 586, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 599, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 792, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (PyYAML 5.3.1 (/usr/lib/python3/dist-packages), Requirement.parse(&apos;pyyaml>=5.4.1&apos;), {&apos;kubernetes&apos;})
`

It tells you that PyYAML version 5.4.1 and later is required, while you have 5.3.1.
Try to install pyyaml>=5.4.1:
!pip install pyyaml>=5.4.1
Reference

pip3 assumes its using regular pip

❯ pip3
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 6, in <module>
from pkg_resources import load_entry_point
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3241, in <module>
#_call_aside
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3225, in _call_aside
f(*args, **kwargs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3254, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 585, in _build_master
return cls._build_from_requirements(__requires__)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 598, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 786, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==20.2.3' distribution was not found and is required by the application
For some reason it says it's accessing /System/Library/Frameworks/Python.framework/Versions/2.7.
If I type in which pip3 it outputs, /usr/local/bin/pip3.
And so I used that to put in my path like so, export PATH="/usr/local/bin/pip3:$PATH"
I also did the same thing with python3:
which python3 and outputs, /usr/bin/python3
And then I used it to put in my path:
export PATH="/usr/bin/python3:$PATH"
However, for some reason my MacBook thinks to use python 2 and regular pip.
I want to be able to use pip3.

How to install EB CLI on ubuntu 18.04

I have tried lots of efforts but not found the result.
Error Showing
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3088, in <module>
#_call_aside
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3072, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 3101, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 574, in _build_master
ws.require(__requires__)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 892, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 778, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'awsebcli==3.12.1' distribution was not found and is required by the application

Mopidy Installation Error

Installing on Mac High Sierra, through a fresh installation of Brew, following the instructions on the website to the letter. It throws this error;
Traceback (most recent call last):
File "/usr/local/bin/mopidy", line 5, in <module>
from pkg_resources import load_entry_point
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3095, in <module>
#_call_aside
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3081, in _call_aside
f(*args, **kwargs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3108, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 658, in _build_master
ws.require(__requires__)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 959, in require
needed = self.resolve(parse_requirements(requirements))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 846, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'Mopidy==2.1.0' distribution was not found and is required by the application
Clearly it's not finding the distro even though it's in the default location with all my other packages. Any idea why?

Did you done
brew tap mopidy/mopidy
before running:
brew install mopidy
??
Following these steps I manage to install it successfully.
I am on OS X 10.13.3

When I put in pip --version into the terminal I get this error: "The 'pip==9.0.1' distribution was not found and is required by the application"

I put pip --version into the terminal and receive this:
Traceback (most recent call last):
File "/usr/local/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3095, in <module>
#_call_aside
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3081, in _call_aside
f(*args, **kwargs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3108, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 658, in _build_master
ws.require(__requires__)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 959, in require
needed = self.resolve(parse_requirements(requirements))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 846, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==9.0.1' distribution was not found and is required by the application
I'm using Mac

Executing:
sudo easy_install pip
should solve this issue.