[scikit-learn] Can I install Python ML library such as XGBoost without pip?

[David Nicholson]

You might find more people that can help with other libraries such as
XGBoost and conda on stack overflow, a list dedicated to those tools, or
their github repositories.
https://discuss.xgboost.ai/
https://groups.google.com/a/continuum.io/g/conda

David Nicholson, Ph.D.
https://nicholdav.info/
https://github.com/NickleDave
Prinz lab <http://www.biology.emory.edu/research/Prinz/>, Emory University,
Atlanta, GA, USA


On Mon, Apr 5, 2021 at 11:28 AM C W <tmrsg11 at gmail.com> wrote:

> Update:
>
> It seems I've already installed XGBoost before. But, I get the following
> error:
>
> >>> import xgboost
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File
> "/Users/mike/opt/miniconda3/lib/python3.8/site-packages/xgboost/__init__.py",
> line 9, in <module>
>     from .core import DMatrix, DeviceQuantileDMatrix, Booster
>   File
> "/Users/mike/opt/miniconda3/lib/python3.8/site-packages/xgboost/core.py",
> line 174, in <module>
>     _LIB = _load_lib()
>   File
> "/Users/mike/opt/miniconda3/lib/python3.8/site-packages/xgboost/core.py",
> line 157, in _load_lib
>     raise XGBoostError(
> xgboost.core.XGBoostError: XGBoost Library (libxgboost.dylib) could not be
> loaded.
> Likely causes:
>   * OpenMP runtime is not installed (vcomp140.dll or libgomp-1.dll for
> Windows, libomp.dylib for Mac OSX, libgomp.so for Linux and other UNIX-like
> OSes). Mac OSX users: Run `brew install libomp` to install OpenMP runtime.
>   * You are running 32-bit Python on a 64-bit OS
> Error message(s):
> ['dlopen(/Users/mike/opt/miniconda3/lib/python3.8/site-packages/xgboost/lib/libxgboost.dylib,
> 6): Library not loaded: /usr/local/opt/libomp/lib/libomp.dylib\n
>  Referenced from:
> /Users/mike/opt/miniconda3/lib/python3.8/site-packages/xgboost/lib/libxgboost.dylib\n
>  Reason: image not found']
>
> It seems OpenMP runtime the one I am missing. I can install by running
> > brew install libomp
>
> But, I don't have brew on this computer. Any work around?
>
> Thanks!
>
> On Mon, Apr 5, 2021 at 10:54 AM C W <tmrsg11 at gmail.com> wrote:
>
>> Hello again,
>>
>> I have 3 follow-up questions.
>>
>> 1) Upon searching, Anaconda website (
>> https://anaconda.org/anaconda/py-xgboost) says that you can install with,
>> > conda install -c anaconda py-xgboost
>> I have miniconda, not anaconda, I guess I just replace it anaconda with
>> minconda?
>>
>> 2) Using pip3 command,
>> > pip3 install xgboost
>> I don't have pip.
>>
>> 3) From XGBoost website, I now see that you can build XGBoost from source
>> (https://xgboost.readthedocs.io/en/latest/build.html)
>>
>> Question: will all the 3 methods install XGBoost in the same folder?
>>
>> Thanks a lot!
>>
>> On Mon, Apr 5, 2021 at 10:35 AM C W <tmrsg11 at gmail.com> wrote:
>>
>>> Hello all,
>>>
>>> I can't install pip on this computer. It has conda installed (probably
>>> not helpful). Is there a work around to install XGBoost and packages?
>>>
>>> I remember reading on stackoverflow, there were some simple commands to
>>> do it. I actually used it to install packages without pip.
>>>
>>> I can't find the post anymore, could anyone help?
>>>
>>> Thanks so much!
>>>
>>> Mike
>>>
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