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✏️ Editing: search.py Read Only

import sys
import textwrap

import pip.download

from pip.basecommand import Command, SUCCESS
from pip.util import get_terminal_size
from pip.log import logger
from pip.backwardcompat import xmlrpclib, reduce, cmp
from pip.exceptions import CommandError
from pip.status_codes import NO_MATCHES_FOUND
from pip._vendor import pkg_resources
from distutils.version import StrictVersion, LooseVersion

class SearchCommand(Command):
    """Search for PyPI packages whose name or summary contains <query>."""
    name = 'search'
    usage = """
      %prog [options] <query>"""
    summary = 'Search PyPI for packages.'

def __init__(self, *args, **kw):
        super(SearchCommand, self).__init__(*args, **kw)
        self.cmd_opts.add_option(
            '--index',
            dest='index',
            metavar='URL',
            default='https://pypi.python.org/pypi',
            help='Base URL of Python Package Index (default %default)')

self.parser.insert_option_group(0, self.cmd_opts)

def run(self, options, args):
        if not args:
            raise CommandError('Missing required argument (search query).')
        query = args
        index_url = options.index

pypi_hits = self.search(query, index_url)
        hits = transform_hits(pypi_hits)

terminal_width = None
        if sys.stdout.isatty():
            terminal_width = get_terminal_size()[0]

print_results(hits, terminal_width=terminal_width)
        if pypi_hits:
            return SUCCESS
        return NO_MATCHES_FOUND

def search(self, query, index_url):
        pypi = xmlrpclib.ServerProxy(index_url)
        hits = pypi.search({'name': query, 'summary': query}, 'or')
        return hits

def transform_hits(hits):
    """
    The list from pypi is really a list of versions. We want a list of
    packages with the list of versions stored inline. This converts the
    list from pypi into one we can use.
    """
    packages = {}
    for hit in hits:
        name = hit['name']
        summary = hit['summary']
        version = hit['version']
        score = hit['_pypi_ordering']
        if score is None:
            score = 0

if name not in packages.keys():
            packages[name] = {'name': name, 'summary': summary, 'versions': [version], 'score': score}
        else:
            packages[name]['versions'].append(version)

# if this is the highest version, replace summary and score
            if version == highest_version(packages[name]['versions']):
                packages[name]['summary'] = summary
                packages[name]['score'] = score

# each record has a unique name now, so we will convert the dict into a list sorted by score
    package_list = sorted(packages.values(), key=lambda x: x['score'], reverse=True)
    return package_list

def print_results(hits, name_column_width=25, terminal_width=None):
    installed_packages = [p.project_name for p in pkg_resources.working_set]
    for hit in hits:
        name = hit['name']
        summary = hit['summary'] or ''
        if terminal_width is not None:
            # wrap and indent summary to fit terminal
            summary = textwrap.wrap(summary, terminal_width - name_column_width - 5)
            summary = ('\n' + ' ' * (name_column_width + 3)).join(summary)
        line = '%s - %s' % (name.ljust(name_column_width), summary)
        try:
            logger.notify(line)
            if name in installed_packages:
                dist = pkg_resources.get_distribution(name)
                logger.indent += 2
                try:
                    latest = highest_version(hit['versions'])
                    if dist.version == latest:
                        logger.notify('INSTALLED: %s (latest)' % dist.version)
                    else:
                        logger.notify('INSTALLED: %s' % dist.version)
                        logger.notify('LATEST:    %s' % latest)
                finally:
                    logger.indent -= 2
        except UnicodeEncodeError:
            pass

def compare_versions(version1, version2):
    try:
        return cmp(StrictVersion(version1), StrictVersion(version2))
    # in case of abnormal version number, fall back to LooseVersion
    except ValueError:
        pass
    try:
        return cmp(LooseVersion(version1), LooseVersion(version2))
    except TypeError:
    # certain LooseVersion comparions raise due to unorderable types,
    # fallback to string comparison
        return cmp([str(v) for v in LooseVersion(version1).version],
                   [str(v) for v in LooseVersion(version2).version])

def highest_version(versions):
    return reduce((lambda v1, v2: compare_versions(v1, v2) == 1 and v1 or v2), versions)

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