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#!/usr/bin/env python3
"""
Script to download NumPy wheels from the Anaconda staging area.
Usage::
$ ./tools/download-wheels.py <version> -w <optional-wheelhouse>
The default wheelhouse is ``release/installers``.
Dependencies
------------
- beautifulsoup4
- urllib3
Examples
--------
While in the repository root::
$ python tools/download-wheels.py 1.19.0
$ python tools/download-wheels.py 1.19.0 -w ~/wheelhouse
"""
import os
import re
import shutil
import argparse
import urllib3
from bs4 import BeautifulSoup
__version__ = "0.1"
# Edit these for other projects.
STAGING_URL = "https://anaconda.org/multibuild-wheels-staging/numpy"
PREFIX = "numpy"
# Name endings of the files to download.
WHL = r"-.*\.whl$"
ZIP = r"\.zip$"
GZIP = r"\.tar\.gz$"
SUFFIX = rf"({WHL}|{GZIP}|{ZIP})"
def get_wheel_names(version):
""" Get wheel names from Anaconda HTML directory.
This looks in the Anaconda multibuild-wheels-staging page and
parses the HTML to get all the wheel names for a release version.
Parameters
----------
version : str
The release version. For instance, "1.18.3".
"""
http = urllib3.PoolManager(cert_reqs="CERT_REQUIRED")
tmpl = re.compile(rf"^.*{PREFIX}-{version}{SUFFIX}")
index_url = f"{STAGING_URL}/files"
index_html = http.request("GET", index_url)
soup = BeautifulSoup(index_html.data, "html.parser")
return soup.findAll(text=tmpl)
def download_wheels(version, wheelhouse):
"""Download release wheels.
The release wheels for the given NumPy version are downloaded
into the given directory.
Parameters
----------
version : str
The release version. For instance, "1.18.3".
wheelhouse : str
Directory in which to download the wheels.
"""
http = urllib3.PoolManager(cert_reqs="CERT_REQUIRED")
wheel_names = get_wheel_names(version)
for i, wheel_name in enumerate(wheel_names):
wheel_url = f"{STAGING_URL}/{version}/download/{wheel_name}"
wheel_path = os.path.join(wheelhouse, wheel_name)
with open(wheel_path, "wb") as f:
with http.request("GET", wheel_url, preload_content=False,) as r:
print(f"{i + 1:<4}{wheel_name}")
shutil.copyfileobj(r, f)
print(f"\nTotal files downloaded: {len(wheel_names)}")
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument(
"version",
help="NumPy version to download.")
parser.add_argument(
"-w", "--wheelhouse",
default=os.path.join(os.getcwd(), "release", "installers"),
help="Directory in which to store downloaded wheels\n"
"[defaults to <cwd>/release/installers]")
args = parser.parse_args()
wheelhouse = os.path.expanduser(args.wheelhouse)
if not os.path.isdir(wheelhouse):
raise RuntimeError(
f"{wheelhouse} wheelhouse directory is not present."
" Perhaps you need to use the '-w' flag to specify one.")
download_wheels(args.version, wheelhouse)
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