Develop Reference

Macos uninstall pip and start over

I'm new to macos and trying to get a dev environment going...I need pip but getting an error message with just pip.
Getting error pkg_resources.DistributionNotFound: The 'pip==20.0.2' distribution was not found and is required by the application
Python3 was installed with macos and I tried to install 2.x version and made it the global default. I think that's why I'm getting the above error.
I uninstalled the 2.x python using pyenv.
How can I remove pip (i've got pip, pip3 and pip 3.8) and start over.
Thanks.

Can you try removing pip using this in the directory where pip pacakge is installed?
sudo rm -r pip <Version Number>
You can get the directory where pip is installed with this: which pip and then cd into that path and run the above command.

pip package installs okay but cannot be run

I am wanting to install a pip package on Debian but when I install it using
pip install bitmex-market-maker
or
pip install --user bitmex-market-maker
it doesn't work and gives me
-bash: marketmaker: command not found
error here
it works fine on my MacBook
I tried to reinstall reboot and even tried pip3 to no avail.

To run the libraries you first need to be inside the python environment.
At your terminal try:
python -m marketmaker

Installing pip in Pycharm 2016.3

I upgraded to the new version of Pycharm. In the terminal, it says bash-3.2$ instead of my username. When I tried to install a library, it said that pip command is not found:
bash: pip: command not found
So I installed pip:
bash-3.2$ sudo easy_install pip
Searching for pip
Best match: pip 8.1.2
pip 8.1.2 is already the active version in easy-install.pth
Installing pip script to /usr/local/bin
Installing pip3.5 script to /usr/local/bin
Installing pip3 script to /usr/local/bin
Using /Library/Python/2.7/site-packages
Processing dependencies for pip
Finished processing dependencies for pip</i>
Okay, now all I have to do is use pip to install a library, right?
But then, this happens:
bash-3.2$ pip install pandas
bash: pip: command not found
I don't understand what I have to do to actually install pip. Or should I use sudo easy_install [library]?

I know that this is not precisely what you're asking, but PyCharm has its own built-in package manager. You should not have to use pip manually.
File->Settings->Project Interpreter
https://www.jetbrains.com/help/pycharm/2016.3/installing-uninstalling-and-upgrading-packages.html
there you can manage the installed packages for the selected Python interpreter or virtualenv.

Run this command on your terminal. pip will be installed without any issue.
sudo [your package manager] install python-pip python-dev build-essential
If it is not solved. The problem might be PATH problem.
Type echo $PATH on terminal. There should be /usr/local/bin in the output. If it is not type PATH=$PATH:/usr/local/bin to add /usr/local/bin to PATH

Uninstall Python package using pip3

I am working with Python 3.4 and have installed a package (spyder) using pip3 install. It is works as it should and I can start it from the terminal.
Since I want to switch my IDE, I tried to uninstall it using pip3 uninstall in the same way as the installation. But this gives me a message that no files can be found.
Here's my terminal output:
cord#laptop:~$ sudo pip3 freeze
Coopr==3.5.8748
...
spyder==2.3.4
...
xdiagnose==3.6.3build2
xkit==0.0.0
cord#laptop:~$ sudo pip3 uninstall spyder
Can't uninstall 'spyder'. No files were found to uninstall.
My OS is Ubuntu 14.04 x64.
Any hints?

Go to /usr/local/bin and find the packages you want to delete
Then just use sudo rm -r spyder or whatever the directory name is.
That way the files get manually removed from your system.

How can I install a python .egg file

I am trying to install twisted on python 2.6 and it seems that the Zop interface is missing.
Also it seems that it is a .egg file. I downloaded this .egg file, now how can I install it?

Install virtualenv, which includes pip. Then you can simply run:
pip install twisted
pip will handle installing the zope.interface.
Instructions for installing virtualenv and pip on OS X
This is how I installed virtualenv and pip on OS X:
curl -O http://peak.telecommunity.com/dist/ez_setup.py
sudo python ez_setup.py
sudo easy_install pip
sudo pip install virtualenv
I also like to use virtualenvwrapper with virtualenv, so I installed it using:
sudo pip install virtualenvwrapper
Instructions for installing Twisted in a virtualenv
Now to create a new virtual environment and install Twisted, I simply issue:
mkvirtualenv twisted-env
pip install twisted