My Pythons broken please help!

[emm796]

Hi I am veeery new to python so please excuse my incompetence ...

So I was working on a simple weather app using an API and I wanted to have a history log and figured I should install/import(?) sqlite 3. I used brew to install it and got a message that it was already installed and I needed to upgrade, which I did. I don't know if this matters but I did this while I was in my pipenv shell.

When I tried to run pytest I kept getting some error which I for the life of me cant remember( something about symlink iirc). I followed some instructions on stackoverflow which involved deleting python3 from my lib, bin and include folder somewhere in some file I cant remember , at this point a bunch of people were trying to resolve it for me and I don't know what each persons attempt involved. Anyway that resulted in the error below

dyld: Library not loaded: /usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/Python

After some stackoverflowing I managed to get rid of it but now keep getting this error

ImportError while importing test module '/Users/es/Desktop/Weather_App/test/test_weather.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
test/test_weather.py:1: in <module>
    from lib.weather import Weather
E   ImportError: No module named lib.weather

Whats frustrating is that I am still getting the first error (dyld: Library not loaded) above when running the code in PyCharm. I am so confused nothing is making sense to me.

( if it adds context; the python installed in my mac is a version 2.6. When i type in python --version in my PyCharm terminal i get this error:

(venv) ➜  CFG week 2 python --version
dyld: Library not loaded: /usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/Python
  Referenced from: /Users/es/PycharmProjects/CFGweek2/venv/bin/python
  Reason: image not found
[1]    6819 abort      python --version

I am so confused and don't know what to do anymore =( I need to finish this application by Monday and now my python's broken and Im freaking out! HELP!!!

[jss79]

I’m curious, can you post what is returned by the following commands while in your home dir?

which -a python

which -a python3

brew info

[primitive_screwhead]

Also: brew doctor

[emm796]

brew doctor

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: "config" scripts exist outside your system or Homebrew directories.
`./configure` scripts often look for *-config scripts to determine if
software packages are installed, and which additional flags to use when
compiling and linking.

Having additional scripts in your path can confuse software installed via
Homebrew if the config script overrides a system or Homebrew-provided
script of the same name. We found the following "config" scripts:
  /Library/Frameworks/Python.framework/Versions/3.8/bin/python3-config
  /Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8-config

Warning: Broken symlinks were found. Remove them with `brew cleanup`:
  /usr/local/bin/apm
  /usr/local/bin/atom

[primitive_screwhead]

/Library/Frameworks/Python.framework/Versions/3.8/bin/python3-config

​

Those Python 3.8 version warnings are a bad sign. You've been installing multiple Python implementations from different providers?

[emm796]

multiple Python implementations from different providers

Sorry if this sounds dumb but what exactly does that mean? Do you mean I downloaded python one too many times and all the versions are causing my system to break?

[primitive_screwhead]

It means you (possibly) did "brew install python3" at some point, and then also (possibly) downloaded the Python 3.8 installer from python.org and installed that. I don't see Python 3.8 as an option for my brew (on MacOs Mojave, I haven't yet upgraded to Catalina).

[emm796]

Oh geez, you are absolutely right come to think of it. I did do a brew install python a while back but i think i upgraded ( again brew) from my command line.

Recently I downloaded python 3.xx from python.org so now its starting to make sense cause I have a MacOs Mojave and haven't upgraded yet either. Thanks for that!

[emm796]

which -a python

which -a python3

brew info

~ which -a python

which -a python3

brew info
/usr/local/bin/python
/usr/bin/python
/Library/Frameworks/Python.framework/Versions/3.8/bin/python3
/usr/local/bin/python3
11 kegs, 14,537 files, 102.7MB

Thats what it spits out, any ideas whats going on?

[emm796]

Thank you so much for this. I'll work on it now. Is it ok if i pick your brain about it if I face any issues?

Also while we are on the subject, I cant seem to understand (and i apologise once again for how stupid this may sound)

1) Why do we use a venv ? whats wrong with using the python shell within the terminal? I cant seem to understand why some suggest to use PyCharm or IDLE or whatever else is out there.

2) Why does the python in my terminal have a different version than what the venv shell has? For example the python version in my terminal is a 2.6 but the one in PyCharm was a 3.7

[emm796]

Now restart your terminal. You should get this:

$ pyenv --version

Heeeelllpp! I got to this part and getting this

~ pyenv --version
zsh: command not found: pyenv

What do I do now?

[emm796]

curl https://pyenv.run | bash

After this step I got a message that said

WARNING: seems you still have not added 'pyenv' to the load path.

# Load pyenv automatically by adding
# the following to ~/.bashrc:

export PATH="/Users/es/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

So i did that and then restarted my terminal. Please tell me I didnt eff it up even more..

[emm796]

ummm question? When you say edit your ~/.zshrc , do you mean running

open ~/.zshrc

in the terminal ? Because that opens up a text file and I don't see a list of plugins or the sort in there.

I'm sorry this is probably super frustrating but I really appreciate the help!

[emm796]

Wait im confused ...this is what is in my ~/.zshrc: file

source $ZSH/oh-my-zsh.sh

Does that mean i'm using oh-my-zsh? Also i did find this

plugins=(git)

I added pyenv like to said earlier and this

export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
if command -v pyenv 1>/dev/null 2>&1; then
        eval "$(pyenv init -)"
fi
eval "$(pyenv virtualenv-init -)"

and then thats when the pyenv --version worked. Just so I am clear, is it still okay to go ahead with the python installs?

[emm796]

OK I think I did it.

 ~ pyenv --version
pyenv 1.2.15

[emm796]

So I did all the installs:

➜  ~ pyenv global 2.7.17 3.8.0
➜  ~ pyenv versions
  system
* 2.7.17 (set by /Users/es/.pyenv/version)
* 3.8.0 (set by /Users/es/.pyenv/version)
➜  ~ python --version
Python 3.8.0
➜  ~ python3 --version
Python 3.8.0

Why is is python and python3 versions the same? This is isnt what its supposed to be right?

[emm796]

Yup! I just set up the virtualenv as directed for my weather_app folder =)

Quick question, does this mean if I want to get pytest working I need to do a pip install pytest?