def download_conda_package()

in s3_management/backup_conda.py [0:0]

• 20 lines of code
• 9 McCabe index (conditional complexity)

def download_conda_package(package:str, version:Optional[str] = None, depends:Optional[str] = None, channel:Optional[str] = None) -> List[str]:
    packages = conda.api.SubdirData.query_all(package, channels = [channel] if channel is not None else None, subdirs = _known_subdirs)
    rc = []
    for pkg in packages:
        if version is not None and pkg.version != version:
            continue
        if depends is not None and depends not in pkg.depends:
            continue
        print(f"Downloading {pkg.url}...")
        os.makedirs(pkg.subdir, exist_ok = True)
        fname = f"{pkg.subdir}/{pkg.fn}"
        if not os.path.exists(fname):
            with open(fname, "wb") as f:
                with urllib.request.urlopen(pkg.url) as url:
                    f.write(url.read())
        if compute_md5(fname) != pkg.md5:
            print(f"md5 of {fname} is {compute_md5(fname)} does not match {pkg.md5}")
            continue
        rc.append(fname)

    return rc