Install pip on pypy

Question

I want to speed up my program so i'm trying to setup pypy + psycopg2cffi. This program opens a xml, parses it and then insert some data in a database. I'm using currently python3, postgresql and psycopg2 but this approaches is really slow. So i want to try run my program with pypy + psycopg2cffi. I have python 3 and pypy, and i want to install psycopg2cffi so i ran this command:

pip install psycopg2cffi psycopg2cffi-compat 

But psycopg2cffi was only installed on python because when i try to import psycopg2cffi on pypy this is the error i get:

ImportError: No module named psycopg2cffi

So i think i need to install pip first but i can figure out how to do this.

How can i install it on pypy? Thank you.

Answer 1

You can also try this (if it's not disabled in your Linux distribution):

pypy -m ensurepip

Answer 2

Download the pip-installer and execute it with pypy:

wget https://bootstrap.pypa.io/get-pip.py
./pypy get-pip.py

For usage try,

pypy -m pip install validators

Answer 3

For me, "pypy -m ensurepip" didn't work with a pypy3 installed with apt-get under Kubuntu 20.04. Probably disabled in the repository, as comments point in @SebMa answer. I was trying to run sympy with pypy3, so I needed pip working with pypy3. I managed to get it working with pypy3 installed with Anaconda:

conda config --set channel_priority strict
conda create -n pypy3 -c conda-forge pypy3.6
conda activate pypy3
pypy3 -m ensurepip
pypy3 -m pip install sympy

This question and its answers were also helpful: How to create a Conda environment that uses PyPy?

Answer 4

I installed pip via

wget https://bootstrap.pypa.io/get-pip.py
pypy3 get-pip.py

then

pypy3 -m pip install "module"

solved my issue. @kleite thanx

Answer 5

I'm using pip with pypy3 on Ubuntu 22.04. Installing the "python3-pip" package or manipulating packages in a "pypy3-venv" seems to solve the problem. I prefer "pypy3-venv".

Start

# apt update && \
  apt install software-properties-common && \
  add-apt-repository ppa:pypy/ppa && \
  apt install pypy3

# pypy3 --version
Python 3.9.19 (7.3.16+dfsg-2~ppa1~ubuntu22.04, Apr 26 2024, 13:22:45)
[PyPy 7.3.16 with GCC 11.4.0]

# python3 --version
Python 3.10.12

# pypy3 -m pip
/usr/bin/pypy3: No module named pip
  (to install pip, you need to run once "/usr/bin/pypy3 -m ensurepip")

"python3" is a dependency of "software-properties-common".

The python3-pip way

I thought the "pypy3-pip" package existed, but:

# apt install pypy3-pip
E: Unable to locate package pypy3-pip

So I tried "python3-pip":

# apt install python3-pip

# pypy3 -m pip --version
pip 22.0.2 from /usr/lib/python3/dist-packages/pip (python 3.9)

# python3 -m pip --version
pip 22.0.2 from /usr/lib/python3/dist-packages/pip (python 3.10) 

Is the /usr/lib/python3/dist-packages/* directory shared with python3 and pypy3? I don't know.

Install packages and their dependencies:

# apt install libpq-dev pypy3-dev && \
  pypy3 -m pip install psycopg2cffi psycopg2cffi-compat && \
  pypy3 -m pip list
...
WARNING: Running pip as the 'root' user can result in broken permissions
  and conflicting behaviour with the system package manager. It is
  recommended to use a virtual environment instead:
  https://pip.pypa.io/warnings/venv
...
Package             Version
------------------- -----------
...
psycopg2cffi        2.9.0
psycopg2cffi-compat 1.1
...

Then import "psycopg2cffi":

# pypy3 -c 'import psycopg2cffi'; echo $?
0

The pypy3-venv way

We can also deploy a "venv":

# apt install pypy3-venv && \
  pypy3 -m venv .venv && \
  source .venv/bin/activate

(.venv)
# which pypy3 python3 pip3 && pip3 --version
/.venv/bin/pypy3
/.venv/bin/python3
/.venv/bin/pip3
pip 22.0.2 from /.venv/lib/pypy3.9/site-packages/pip (python 3.9)

(.venv)
# apt install libpq-dev pypy3-dev && \
  pip3 install psycopg2cffi psycopg2cffi-compat && \
  pip3 list
...

(.venv)
# pypy3 -c 'import psycopg2cffi'; echo $?
0

# deactivate

# pypy3 -c 'import psycopg2cffi'; echo $?
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'psycopg2cffi'
1

Please note the package "python3-setuptools-whl":

# apt-cache depends pypy3-venv
pypy3-venv
  Depends: pypy3
  Depends: python3-pip-whl
  Depends: python3-setuptools-whl

# dpkg -L python3-pip-whl
...
/usr/share/python-wheels/pip-22.0.2-py3-none-any.whl

.