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Questions tagged [python-packaging]

Packages are namespaces which contain multiple packages and modules themselves.

A package is a directory containing a special file called __init__.py (which indicated that the directory contains a python package) and sub-packages and modules. The package name is determined by the name of the directory.

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python pip priority order with index-url and extra-index-url

I searched a bit but could not find a clear answer. The goal is, to have two pip indexes, one is a private index, that will be a first priority. And one is the standard PyPI. The priority is there to prevent the security risk of code injection. Say…
user3599803
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Trying to read JSON file within a Python package

I am in the process of packaging up a python package that I'll refer to as MyPackage. The package structure is: MyPackage/ script.py data.json The data.json file comprises cached data that is read in script.py. I have figured out how to…
Mason Edmison
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module 'pip' has no attribute 'pep425tags'

When I am trying to install .whl with pip it said: ... is not a supported wheel on this platform to solve this problem, I searched the Internet and it said I can input this into repl import pip; print(pip.pep425tags.get_supported()) with this I…
Alina
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Python commands to build distribution setup.py build vs python -m build

I'm learning about Python packaging, and according to this guide, the command to build a python distribution package seems to be python3 -m build. But I aslo found that there is a command line interface for setup.py file from setuptools: $ python…
oeter
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How to build a C extension in keeping with PEP 517, i.e. with pyproject.toml instead of setup.py?

I want to build a C extension for CPython. I could do it traditionally with a setup.py file. However, for the reasons mentioned in PEP 517, I would prefer a declarative approach using a pyproject.toml. I understand that setuptools is the only build…
Dr Leo
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What is 'extra' in pypi dependency?

In requires_dist section of a package's json response from pypi, it is given: requires_dist : [ "bcrypt; extra == 'bcrypt'", "argon2-cffi (>=16.1.0); extra == 'argon2'" ] can anyone make it clear the second statement of each dependency,…
All Іѕ Vаиітy
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Prevent package from being installed on old Python versions

What can we put in a setup.py file to prevent pip from collecting and attempting to install a package when using an unsupported Python version? For example magicstack is a project listed with the trove classifier: Programming Language :: Python :: 3…
wim
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Pip install error missing 'libxml/xmlversion.h'

I need to install the python package xmlsec(https://pypi.python.org/pypi/xmlsec) and when I try running pip install xmlsec It gives me this error: src\xmlsec\constants.c(266) : fatal error C1083: Cannot open include file: 'libxml/xmlversion.h': No…
clue3434
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Multilevel relative import

Multilevel relative import I have following folder structure top\ __init__.py util\ __init__.py utiltest.py foo\ __init__.py foo.py bar\ __init__.py foobar.py I want to access from foobar.py…
Razer
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Python: How do I find which pip package a library belongs to?

I got a script transferred from someone else. And there is a module imported into the script. I'm wondering what is the best way to find out which pip package installed this library (other than search online). I tried to import the package and then…
Suanmeiguo
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setup.py -- configuration for private / commercial projects

What can I put on our setup.py project configuration file to tell the developers that the project is a private/commercial application/library. Currently I set: setup( name='MyProject', version='0.1.0', license='(c) My Company', …
Laurent LAPORTE
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How to build python project based on pyproject.toml

I would like to understand current state of Python build systems and requirements management. Imagine, that I checked out sources of some project that is using poetry (or pipenv). And this project has pyproject.toml file with build system specified.…
Andrey Tatarinov
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Installing nltk data dependencies in setup.py script

I use NLTK with wordnet in my project. I did the installation manually on my PC, with pip: pip3 install nltk --user in a terminal, then nltk.download() in a python shell to download wordnet. I want to automatize these with a setup.py file, but I…
Tom Cornebize
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Import modules from subfolders

I have following arrangement of files: python |---- main.py |---- files |---- folder1 |---- a.py, a1.py, ... |---- folder2 |---- b.py, b1.py, ... I wanted to import my modules a.py and b.py to main.py. For this I…
user741592
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python installing package with submodules

I have a custom project package with structure like: package-dir/ mypackage/ __init__.py submodule1/ __init__.py testmodule.py main.py requirements.txt setup.py using cd…
muon
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