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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.
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Compatibility: PyPy is highly compatible with existing python code. It supports cffi, cppyy, and can run popular python libraries like twisted, and django. It can also run NumPy, Scikit-learn and more via a c-extension compatibility layer.
For Python 2.7, it's just called pypy . For CPython, if you would like to run Python 3 from the terminal, you simply enter the command python3 . To run PyPy, simply issue the command pypy3 . Entering the pypy3 command in the terminal might return the Command 'pypy3' not found message, as shown in the next figure.
TL;DR version: you should use numpy. You can install it by doing pypy -m pip install numpy . You might also be interested in using the experimental PyPy binary wheels to save compilation time. The upstream numpy is written in C, and runs under the cpyext compatibility layer.
You can also try this (if it's not disabled in your Linux distribution):
pypy -m ensurepip 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 If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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