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I have a Linux-64 bit machine. How do I install PyPy in my anaconda environment. I tried conda install pypy. It says there are no available packages. pip install pypy also returns a similar message. Is it that the only way to install PyPy is by downloading the tar.gz file from the website? Once installed, how do I configure my Anaconda environment in such a way so as to be able to switch from PyPy to other Python implementations when required?
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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.
PyPy comes in two versions: one is fully compatible with Python 2.7; the other is fully compatible with one 3. x version.
conda-forge now supports PyPy3.6 as the python interpreter in a conda environment (see the official blog post):
conda config --set channel_priority strict conda create -n pypy pypy conda activate pypy And then use it like your regular python executable (notice that this is a different Python interpreter, not a package)
pypy3 -c "import sys; print(sys.version)"
It works on Linux and OSX.
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