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EDIT :: search.py
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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