279
360
What is PEP 517?
PEP 517 defines a
standard interface between build frontends such as pip
and uv, and build backends such as Setuptools, Flit,
Hatchling, and PDM.
It allows projects to declare their build dependencies in the
[build-system] table of pyproject.toml.
Legend
- Green projects (279; 77.5%): declares a PEP 517 build backend
- Yellow projects (74; 20.6%): no PEP 517 backend, but a universal wheel
- Orange projects (3; 0.8%): no PEP 517 backend and no universal wheel
- Gray projects (4; 1.1%): no source distribution
The package ranking comes from Hugo van Kemenade. The complete build-system dataset is available as csv.
boto3
packaging
typing-extensions
certifi
idna
urllib3
requests
charset-normalizer
setuptools
cryptography
cffi
pluggy
pygments
pyyaml
botocore
python-dateutil
six
pydantic
numpy
click
pycparser
anyio
pytest
pydantic-core
iniconfig
aiobotocore
annotated-types
h11
attrs
typing-inspection
protobuf
fsspec
httpx
markupsafe
httpcore
s3transfer
python-dotenv
platformdirs
pandas
jinja2
pathspec
grpcio-status
filelock
pip
pyjwt
starlette
uvicorn
litellm
aiohttp
tqdm
jmespath
rpds-py
yarl
jsonschema
rich
markdown-it-py
multidict
propcache
s3fs
fastapi
referencing
tomlkit
frozenlist
jsonschema-specifications
pyasn1
wheel
websockets
aiohappyeyeballs
mdurl
aiosignal
google-auth
pillow
googleapis-common-protos
pytz
sniffio
importlib-metadata
trove-classifiers
zipp
opentelemetry-semantic-conventions
annotated-doc
virtualenv
hatchling
pydantic-settings
tzdata
wrapt
ghapi
greenlet
opentelemetry-api
huggingface-hub
opentelemetry-sdk
pyasn1-modules
tenacity
google-api-core
regex
pyarrow
python-multipart
textual
openai
grpcio
soupsieve
beautifulsoup4
jiter
pyparsing
sqlalchemy
distro
scipy
colorama
tomli
lxml
watchfiles
opentelemetry-proto
psutil
shellingham
opentelemetry-instrumentation
editables
typer
requests-oauthlib
opentelemetry-exporter-otlp-proto-http
proto-plus
openpyxl
et-xmlfile
mcp
ruff
opentelemetry-exporter-otlp-proto-common
coverage
exceptiongroup
sglang
oauthlib
mypy-extensions
dnspython
more-itertools
wcwidth
cachetools
distlib
sse-starlette
hf-xet
multiprocess
pytest-asyncio
python-discovery
docstring-parser
sortedcontainers
requests-toolbelt
pyopenssl
psycopg2-binary
rsa
uvloop
msgpack
opentelemetry-exporter-otlp-proto-grpc
tiktoken
httptools
google-genai
networkx
werkzeug
tokenizers
redis
gitpython
fonttools
langchain
prompt-toolkit
defusedxml
grpcio-tools
scikit-learn
smmap
pytest-cov
google-cloud-storage
matplotlib
orjson
email-validator
pynacl
httpx-sse
isodate
chardet
azure-core
gitdb
tzlocal
alembic
itsdangerous
dill
websocket-client
nodeenv
joblib
tabulate
mako
opentelemetry-instrumentation-requests
threadpoolctl
ruamel-yaml
h2
azure-identity
keyring
google-cloud-core
mypy
kiwisolver
bcrypt
hpack
pytest-json-ctrf
flask
opentelemetry-util-http
contourpy
jaraco-classes
msal
docutils
truststore
hyperframe
jeepney
jaraco-functools
decorator
zstandard
anthropic
pre-commit
secretstorage
identify
cfgv
toml
docker
xxhash
jaraco-context
blinker
uv
cycler
google-resumable-media
httpx2
ptyprocess
google-crc32c
sympy
transformers
httpcore2
pexpect
google-cloud-bigquery
google-api-python-client
uritemplate
black
prometheus-client
jsonpointer
google-auth-httplib2
sentry-sdk
langchain-core
opentelemetry-instrumentation-threading
deprecated
backoff
snowflake-connector-python
async-timeout
google-auth-oauthlib
rapidfuzz
mpmath
asn1crypto
httplib2
opentelemetry-exporter-otlp
ipython
awscli
pytest-xdist
narwhals
librt
aiofiles
types-requests
msal-extensions
poetry-core
datasets
pypdf
execnet
traitlets
cloudpickle
asgiref
ydb
paramiko
jsonpatch
sqlparse
google-cloud-secret-manager
pyproject-hooks
webencodings
fastjsonschema
authlib
psycopg
build
grpc-google-iam-v1
gunicorn
executing
databricks-sdk
isort
joserfc
azure-storage-blob
jedi
parso
babel
asttokens
psycopg-binary
google-cloud-aiplatform
matplotlib-inline
cython
tornado
markdown
setuptools-scm
xmltodict
pydantic-ai-slim
stack-data
pure-eval
asyncpg
gcsfs
google-cloud-batch
marshmallow
cachecontrol
langsmith
python-json-logger
vcs-versioning
fastuuid
python-docx
structlog
watchdog
playwright
google-cloud-kms
safetensors
tinycss2
termcolor
google-analytics-admin
google-cloud-compute
pytokens
aioitertools
kubernetes
brotli
pymupdf
pyzmq
pyee
xlsxwriter
pymongo
lz4
mdit-py-plugins
google-cloud-pubsub
pydantic-graph
cbor2
pytest-mock
pytest-timeout
py4j
pymysql
linkify-it-py
flatbuffers
google-cloud-dlp
pyperclip
nest-asyncio
google-cloud-speech
dbt-adapters
wsproto
debugpy
typedload
google-cloud-texttospeech
ruamel-yaml-clib
croniter
slack-sdk
uc-micro-py
weaviate-client
griffelib
tomli-w
types-toml
importlib-resources
pycryptodome
google-cloud-logging
opentelemetry-instrumentation-fastapi
reportlab
awswrangler
torch
fastmcp
mccabe