python package can be installed by pip but not conda

Question

I need the sacred package for a new code base I downloaded. It requires sacred. https://pypi.python.org/pypi/sacred

conda install sacred fails with PackageNotFoundError: Package missing in current osx-64 channels: - sacred

The instruction on the package site only explains how to install with pip. What do you do in this case?

I used pip install, and it worked just the same. Still, I like to know how to get conda to find the package. — bhomass, Aug 02 '17 at 22:46
Nice to know how things work. Practically, I use pip and have managed to avoid conda so far, even for official recommendations like CUDA/numba. Multiple package management environments sound like a burning bus to me. — Claire, May 20 '18 at 17:46

score 5 · Accepted Answer · edited Jan 27 '20 at 22:01

That package is not available as a conda package at all. You can search for packages on anaconda.org: https://anaconda.org/search?q=sacred You can see the type of package in the 4th column. Other Python packages may be available as conda packages, for instance, NumPy: https://anaconda.org/search?q=numpy

As you can see, the conda package numpy is available from a number of different channels (the channel is the name before the slash). If you wanted to install a package from a different channel, you can add the option to the install/create command with the -c/--channel option, or you can add the channel to your configuration conda config --add channels channel-name.

If no conda package exists for a Python package, you can either install via pip (if available) or build your own conda package. This isn't usually too difficult to do for pure Python packages, especially if one can use skeleton to build a recipe from a package on PyPI.

What do you mean a pip channel? You have to use pip to install from PyPI. — darthbith, Feb 16 '20 at 04:15
@HimanshuPoddar No, you have to use pip to install from PyPI. — darthbith, Feb 17 '20 at 22:19

score 0 · Answer 2 · answered Aug 03 '17 at 13:49

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It happens some issue to me before. If your system default Python environment is Conda, then you could download those files from https://pypi.python.org/pypi/sacred#downloads and manually install by

pip install C:/Destop/some-file.whl

answered Aug 03 '17 at 13:49

SharpLu

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And what about the dependencies? will it install them too in case we don't have internet – Himanshu Poddar Feb 11 '20 at 05:47

python package can be installed by pip but not conda

2 Answers2

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