def install(self):
self.success = False
logger.info('Looking for {0} releases on PyPI', self.name)
p = ReqManager(self)
try:
files = p.files()
except (urllib2.URLError, urllib2.HTTPError) as e:
raise InstallationError(repr(e.reason) if hasattr(e, 'reason') else e.msg)
bad_eggs = []
for pext in ('.tar.gz', '.tar.bz2', '.zip', '.egg'):
for v, name, hash, url in files[pext]:
if pext == '.egg' and not right_egg(name):
if args_manager['install']['force_egg_install']:
bad_eggs.append( (url, name, p.name, hash) )
continue
if ext(name) not in ('.tar.gz', '.tar.bz2', '.zip', '.egg') + WINDOWS_EXT:
continue
logger.info('Best match: {0}=={1}', self.name, v)
try:
self._download_and_install(url, name, p.name, hash)
except InstallationError:
logger.info('Trying another file (if there is one)...')
continue
if not self.version:
self.version = v
break
if self.success:
return
if bad_eggs:
self._check_bad_eggs(bad_eggs)
if not self.success:
raise InstallationError('Error: Cannot find files available for dowloading and installing')
def download(self, dest):
dest = os.path.abspath(dest)
files = self.files()
## We need a placeholder because of the nested for loops
success = False
for p in self.pref:
if success:
break
if not files[p]:
logger.warn('{0} files not found. Continue searching...', p)
continue
for v, name, hash, url in files[p]:
if success:
break
if p == '.egg' and not right_egg(name):
logger.info('Found egg file for another Python version: {0}. Continue searching...', version_egg(name))
continue
try:
data = download(url, 'Retrieving data for {0}'.format(self.name)).getvalue()
except (urllib2.URLError, urllib2.HTTPError) as e:
logger.debug('urllib2 error: {0}', e.args)
continue
if not data:
logger.debug('debug: Request failed')
continue
if not os.path.exists(dest):
os.makedirs(dest)
try:
# Fix for packages with no version in the name
if '-' not in name:
name = '{0}-{1}{2}'.format(name, v, p)
logger.info('Writing data into {0}', name)
with open(os.path.join(dest, name), 'w') as f:
f.write(data)
except (IOError, OSError):
logger.debug('debug: Error while writing data')
continue
logger.success('{0} downloaded successfully', self.name)
success = True
self.downloaded_name = name
self.downloaded_version = v
