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zBModule for parsing and testing package version predicate strings.
N )versionz'(?i)^\s*([a-z_]\w*(?:\.[a-z_]\w*)*)(.*)z^\s*\((.*)\)\s*$z%^\s*(<=|>=|<|>|!=|==)\s*([^\s,]+)\s*$c t j | }|st d| z |j \ }}t j
5 t j | }ddd ||fS # 1 sw Y |fS xY w)zVParse a single version comparison.
Return (comparison string, StrictVersion)
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(C =DEE::z>=z!=c " e Zd ZdZd Zd Zd Zy)VersionPredicatea Parse and test package version predicates.
>>> v = VersionPredicate('pyepat.abc (>1.0, <3333.3a1, !=1555.1b3)')
The `name` attribute provides the full dotted name that is given::
>>> v.name
'pyepat.abc'
The str() of a `VersionPredicate` provides a normalized
human-readable version of the expression::
>>> print(v)
pyepat.abc (> 1.0, < 3333.3a1, != 1555.1b3)
The `satisfied_by()` method can be used to determine with a given
version number is included in the set described by the version
restrictions::
>>> v.satisfied_by('1.1')
True
>>> v.satisfied_by('1.4')
True
>>> v.satisfied_by('1.0')
False
>>> v.satisfied_by('4444.4')
False
>>> v.satisfied_by('1555.1b3')
False
`VersionPredicate` is flexible in accepting extra whitespace::
>>> v = VersionPredicate(' pat( == 0.1 ) ')
>>> v.name
'pat'
>>> v.satisfied_by('0.1')
True
>>> v.satisfied_by('0.2')
False
If any version numbers passed in do not conform to the
restrictions of `StrictVersion`, a `ValueError` is raised::
>>> v = VersionPredicate('p1.p2.p3.p4(>=1.0, <=1.3a1, !=1.2zb3)')
Traceback (most recent call last):
...
ValueError: invalid version number '1.2zb3'
It the module or package name given does not conform to what's
allowed as a legal module or package name, `ValueError` is
raised::
>>> v = VersionPredicate('foo-bar')
Traceback (most recent call last):
...
ValueError: expected parenthesized list: '-bar'
>>> v = VersionPredicate('foo bar (12.21)')
Traceback (most recent call last):
...
ValueError: expected parenthesized list: 'bar (12.21)'
c |j }|s t d t j | }|st d|z |j \ | _ }|j }|rt j | }|st d|z |j d }|j d D cg c]
}t | c}| _ | j st d|z yg | _ yc c}w )z!Parse a version predicate string.zempty package restrictionzbad package name in %rz expected parenthesized list: %rr ,z empty parenthesized list in %rN)
stripr re_validPackager r namere_parensplitr r )selfversionPredicateStrr parenstraPreds r __init__zVersionPredicate.__init__i s 2 7 7 9" 89 9 %%&9: 58K KL L <<> 5
NN5)E !BU!JKK,,.#C58YYs^D^E ^DDI99 !ADW!WXX DI Es 8C5c | j rQ| j D cg c] \ }}|dz t | z }}}| j dz dj | z dz S | j S c c}}w )N z (z, ))r r! r join)r condverseqs r __str__zVersionPredicate.__str__ sc 99:>))D)YT34#:C()CD99t#diin4s: :99 Es A*c N | j D ] \ }}t | || r y y)zTrue if version is compatible with all the predicates in self.
The parameter version must be acceptable to the StrictVersion
constructor. It may be either a string or StrictVersion.
FT)r compmap)r r r( r) s r satisfied_byz VersionPredicate.satisfied_by s,
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d| z |j d xs d}|r2t j 5 t j | }ddd |j d |fS # 1 sw Y xY w)a9 Return the name and optional version number of a provision.
The version number, if given, will be returned as a `StrictVersion`
instance, otherwise it will be `None`.
>>> split_provision('mypkg')
('mypkg', None)
>>> split_provision(' mypkg( 1.2 ) ')
('mypkg', StrictVersion ('1.2'))
Nz=([a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*)(?:\s*\(\s*([^)\s]+)\s*\))?$z"illegal provides specification: %r r )
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