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Is it possible to see dependencies before installing a package? - quazirfan - Dec-06-2022
I want to see the list of dependencies(packages) a given package depends on before installing the package.
For example, pandas depend on numpy. Is there a pip command that takes pandas as input and shows me the dependencies that will be installed alongside pandas? It would be best if the dependency tree is recursive - meaning dependencies also show their dependencies.
Thank you!
RE: Is it possible to see dependencies before installing a package? - quazirfan - Dec-06-2022
I found this SO answer that points to some workarounds: https://stackoverflow.com/questions/29751572/how-to-find-a-python-packages-dependencies
It appears this was not a high-priority feature for pip developers.
RE: Is it possible to see dependencies before installing a package? - snippsat - Dec-06-2022
Can use Johnnydep
Example Pandas.
C:\code λ johnnydep pandas 2022-12-06 11:26:22 [info ] init johnnydist [johnnydep.lib] dist=pandas parent=None 2022-12-06 11:26:25 [info ] init johnnydist [johnnydep.lib] dist=numpy>=1.21.0 parent=pandas 2022-12-06 11:26:28 [info ] init johnnydist [johnnydep.lib] dist=python-dateutil>=2.8.1 parent=pandas 2022-12-06 11:26:30 [info ] init johnnydist [johnnydep.lib] dist=pytz>=2020.1 parent=pandas 2022-12-06 11:26:32 [info ] init johnnydist [johnnydep.lib] dist=six>=1.5 parent=python-dateutil>=2.8.1 name summary -------------------------- ----------------------------------------------------------------------- pandas Powerful data structures for data analysis, time series, and statistics ├── numpy>=1.21.0 NumPy is the fundamental package for array computing with Python. ├── python-dateutil>=2.8.1 Extensions to the standard Python datetime module │ └── six>=1.5 Python 2 and 3 compatibility utilities └── pytz>=2020.1 World timezone definitions, modern and historicalExample scikit-learn
C:\code λ johnnydep scikit-learn 2022-12-06 11:30:23 [info ] init johnnydist [johnnydep.lib] dist=scikit-learn parent=None 2022-12-06 11:30:26 [info ] init johnnydist [johnnydep.lib] dist=joblib>=1.0.0 parent=scikit-learn 2022-12-06 11:30:27 [info ] init johnnydist [johnnydep.lib] dist=numpy>=1.17.3 parent=scikit-learn 2022-12-06 11:30:31 [info ] init johnnydist [johnnydep.lib] dist=scipy>=1.3.2 parent=scikit-learn 2022-12-06 11:31:15 [info ] init johnnydist [johnnydep.lib] dist=threadpoolctl>=2.0.0 parent=scikit-learn 2022-12-06 11:31:17 [info ] init johnnydist [johnnydep.lib] dist=numpy<1.26.0,>=1.18.5 parent=scipy>=1.3.2 name summary ----------------------------- ----------------------------------------------------------------- scikit-learn A set of python modules for machine learning and data mining ├── joblib>=1.0.0 Lightweight pipelining with Python functions ├── numpy>=1.17.3 NumPy is the fundamental package for array computing with Python. ├── scipy>=1.3.2 Fundamental algorithms for scientific computing in Python │ └── numpy<1.26.0,>=1.18.5 NumPy is the fundamental package for array computing with Python. └── threadpoolctl>=2.0.0 threadpoolctl
RE: Is it possible to see dependencies before installing a package? - quazirfan - Dec-06-2022
Thanks. It was mentioned in the original SO answer, but Johneydep has its dependencies. I was looking for a pip command because I wanted to add packages carefully to my environment.
RE: Is it possible to see dependencies before installing a package? - snippsat - Dec-06-2022
(Dec-06-2022, 02:26 PM)quazirfan Wrote: I was looking for a pip command because I wanted to add packages carefully to my environmentThe way to solve this that is to use virtual environment.
Example i would not at install eg some these AI libraries eg in this post whisper without using virtual environment.
Don't need it anymore if just delete
whisper_env folder,then all is gone.I did help someone at one time the libraries did install 100 packages.
I have of course a lot install to the root Python,but to test larger libraries to avoid conflicts should use virtual environment.
Also if i make a package/libraries myself the this is done in a virtual environment.
There are ok 3-party like Poetry it work fine,my only complain that it need a lot dependencies itself.
Here a packages in Whisper,dos not matter what i have installed before this is now isolated.
(whisper_env) G:\div_code\whisper_env λ pip list Package Version ------------------ ---------- certifi 2022.9.24 charset-normalizer 2.1.1 colorama 0.4.6 ffmpeg-python 0.2.0 filelock 3.8.0 future 0.18.2 huggingface-hub 0.11.1 idna 3.4 more-itertools 9.0.0 numpy 1.23.5 packaging 21.3 pip 22.0.4 pyparsing 3.0.9 PyYAML 6.0 regex 2022.10.31 requests 2.28.1 setuptools 58.1.0 tokenizers 0.13.2 torch 1.13.0 tqdm 4.64.1 transformers 4.25.1 typing_extensions 4.4.0 urllib3 1.26.13 whisper 1.0