def split_archive_name(archive_name, probable_name=None):
"""Split an archive name into two parts: name and version.
Return the tuple (name, version)
"""
# Try to determine wich part is the name and wich is the version using the
# "-" separator. Take the larger part to be the version number then reduce
# if this not works.
def eager_split(str, maxsplit=2):
# split using the "-" separator
splits = str.rsplit("-", maxsplit)
name = splits[0]
version = "-".join(splits[1:])
if version.startswith("-"):
version = version[1:]
if suggest_normalized_version(version) is None and maxsplit >= 0:
# we dont get a good version number: recurse !
return eager_split(str, maxsplit - 1)
else:
return name, version
if probable_name is not None:
probable_name = probable_name.lower()
name = None
if probable_name is not None and probable_name in archive_name:
# we get the name from probable_name, if given.
name = probable_name
version = archive_name.lstrip(name)
else:
name, version = eager_split(archive_name)
version = suggest_normalized_version(version)
if version is not None and name != "":
return name.lower(), version
else:
raise CantParseArchiveName(archive_name)
def distinfo_dirname(name, version):
"""
The *name* and *version* parameters are converted into their
filename-escaped form, i.e. any ``'-'`` characters are replaced
with ``'_'`` other than the one in ``'dist-info'`` and the one
separating the name from the version number.
:parameter name: is converted to a standard distribution name by replacing
any runs of non- alphanumeric characters with a single
``'-'``.
:type name: string
:parameter version: is converted to a standard version string. Spaces
become dots, and all other non-alphanumeric characters
(except dots) become dashes, with runs of multiple
dashes condensed to a single dash.
:type version: string
:returns: directory name
:rtype: string"""
file_extension = ".dist-info"
name = name.replace("-", "_")
normalized_version = suggest_normalized_version(version)
# Because this is a lookup procedure, something will be returned even if
# it is a version that cannot be normalized
if normalized_version is None:
# Unable to achieve normality?
normalized_version = version
return "-".join([name, normalized_version]) + file_extension
def set_version(self, version):
try:
self._version = NormalizedVersion(version)
except IrrationalVersionError:
suggestion = suggest_normalized_version(version)
if suggestion:
self.version = suggestion
else:
raise IrrationalVersionError(version)
def eager_split(str, maxsplit=2):
# split using the "-" separator
splits = str.rsplit("-", maxsplit)
name = splits[0]
version = "-".join(splits[1:])
if version.startswith("-"):
version = version[1:]
if suggest_normalized_version(version) is None and maxsplit >= 0:
# we dont get a good version number: recurse !
return eager_split(str, maxsplit - 1)
else:
return name, version
def __init__(self, version):
self.unnormalized_version = version
NormalizedVersion.__init__(
self, suggest_normalized_version(version))
def __init__(self, version):
self.unnormalized_version = version
NormalizedVersion.__init__(self,
suggest_normalized_version(version))
def normalized_version(self):
version = suggest_normalized_version(self['Version'])
if version is None:
raise InvalidVersion("cannot determine the normalized version "
"for: %s" % self['Version'])
return NormalizedVersion(version)
