def get_bower_package(self, url, dest=None, version=None,
                          process_deps=True):
        dest = dest or Path(".") / "assets"
        parsed_url = urlparse(url)
        if parsed_url.scheme == "git" or parsed_url.path.endswith(".git"):
            if parsed_url.netloc == "github.com":
                user, repo = parsed_url.path[1:-4].split("/")
                response = get(github_api_uri +
                               "/repos/{}/{}/tags".format(user, repo))
                tags = response.json()
                target = None
                if not len(tags):
                    click.secho("fatal: no tags exist for {}/{}".format(
                        user, repo), fg="red")
                    raise InvalidPackageError
                if version is None:
                    target = tags[0]
                else:
                    for tag in tags:
                        if semver.match(tag["name"],
                                        Bower.clean_semver(version)):
                            target = tag
                            break
                if not target:
                    click.secho(
                        "fatal: failed to find matching tag for "
                        "{user}/{repo} {version}".format(user, repo, version),
                        fg="red")
                    raise VersionNotFoundError
                click.secho("installing {}/{}#{}".format(
                    user, repo, tags[0]["name"]), fg="green")
                return self.get_bower_package(
                    url=target["zipball_url"],
                    dest=dest,
                    version=version)
            raise NotImplementedError
            click.echo("git clone {url}".format(url=url))
            cmd = envoy.run('git clone {url} "{dest}"'.format(
                url=url, dest=dest))
        elif parsed_url.scheme in ("http", "https"):
            zip_dest = download_file(url, dest=self.temp_dir,
                                     label="{dest_basename}",
                                     expected_extension="zip")
            with zipfile.ZipFile(zip_dest, "r") as pkg:
                return self.extract_bower_zipfile(pkg, dest,
                                                  expected_version=version)
                # pkg.extractall(str(dest))
        else:
            click.secho("protocol currently unsupported :(")
            sys.exit(1)
def apply_ktst(K, y, iterations=10000, subjects=False, verbose=True):
    """
    Compute MMD^2_u, its null distribution and the p-value of the
    kernel two-sample test.

    Parameters:
    ----------
    K: array-like
        Kernel matrix
    y: array_like
        class labels
    verbose: bool
        Verbosity

    Returns:
    -------
    mmd2u: float
        MMD^2_u value.
    acc_null: array
        Null distribution of the MMD^2_u
    p_value: float
         p-value
    """
    assert len(np.unique(y)) == 2, 'KTST only works on binary problems'

    # Assuming that the first m rows of the kernel matrix are from one
    # class and the other n rows from the second class.
    m = len(y[y == 0])
    n = len(y[y == 1])
    mmd2u = MMD2u(K, m, n)
    if verbose:
        print("MMD^2_u = %s" % mmd2u)
        print("Computing the null distribution.")
    if subjects:
        perms = [permutation_subjects_ktst(y) for i in range(iterations)]
        mmd2u_null = compute_null_distribution_given_permutations(K, m, n,
                                                                  perms,
                                                                  iterations)
    else:
        mmd2u_null = compute_null_distribution(K, m, n, iterations,
                                               verbose=verbose)

    p_value = max(1.0/iterations, (mmd2u_null > mmd2u).sum()
                  / float(iterations))
    if verbose:
        print("p-value ~= %s \t (resolution : %s)" % (p_value, 1.0/iterations))

    return mmd2u, mmd2u_null, p_value