mirror of
https://github.com/pypa/pip
synced 2023-12-13 21:30:23 +01:00
Only install stable releases by default
* Adds the --pre flag to pip install to specify that you wish to install pre-releases * If the version spec contains any pre-releases then continue to install pre-releases
This commit is contained in:
parent
188ac202e8
commit
4d5c5f8f97
7 changed files with 267 additions and 9 deletions
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@ -177,6 +177,12 @@ class InstallCommand(Command):
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default=None,
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help="Install everything relative to this alternate root directory.")
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cmd_opts.add_option(
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'--pre',
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action='store_true',
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default=False,
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help="Include pre-releases in the available versions.")
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index_opts = make_option_group(index_group, self.parser)
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self.parser.insert_option_group(0, index_opts)
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@ -232,7 +238,7 @@ class InstallCommand(Command):
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use_user_site=options.use_user_site)
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for name in args:
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requirement_set.add_requirement(
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InstallRequirement.from_line(name, None))
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InstallRequirement.from_line(name, None, prereleases=options.pre))
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for name in options.editables:
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requirement_set.add_requirement(
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InstallRequirement.from_editable(name, default_vcs=options.default_vcs))
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1
pip/distlib/__init__.py
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1
pip/distlib/__init__.py
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@ -0,0 +1 @@
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from . import version
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pip/distlib/version.py
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222
pip/distlib/version.py
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@ -0,0 +1,222 @@
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# Taken from distlib so we can easily determine what a pre-release is.
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# It has been stripped down to only the parts needed for that purpose.
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import re
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class UnsupportedVersionError(Exception):
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"""This is an unsupported version."""
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pass
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class HugeMajorVersionError(UnsupportedVersionError):
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"""An irrational version because the major version number is huge
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(often because a year or date was used).
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See `error_on_huge_major_num` option in `NormalizedVersion` for details.
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This guard can be disabled by setting that option False.
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"""
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pass
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# A marker used in the second and third parts of the `parts` tuple, for
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# versions that don't have those segments, to sort properly. An example
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# of versions in sort order ('highest' last):
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# 1.0b1 ((1,0), ('b',1), ('z',))
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# 1.0.dev345 ((1,0), ('z',), ('dev', 345))
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# 1.0 ((1,0), ('z',), ('z',))
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# 1.0.post256.dev345 ((1,0), ('z',), ('z', 'post', 256, 'dev', 345))
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# 1.0.post345 ((1,0), ('z',), ('z', 'post', 345, 'z'))
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# ^ ^ ^
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# 'b' < 'z' ---------------------/ | |
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# | |
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# 'dev' < 'z' ----------------------------/ |
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# |
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# 'dev' < 'z' ----------------------------------------------/
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# 'f' for 'final' would be kind of nice, but due to bugs in the support of
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# 'rc' we must use 'z'
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_FINAL_MARKER = ('z',)
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_VERSION_RE = re.compile(r'''
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^
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(?P<version>\d+\.\d+(\.\d+)*) # minimum 'N.N'
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(?:
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(?P<prerel>[abc]|rc) # 'a'=alpha, 'b'=beta, 'c'=release candidate
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# 'rc'= alias for release candidate
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(?P<prerelversion>\d+(?:\.\d+)*)
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)?
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(?P<postdev>(\.post(?P<post>\d+))?(\.dev(?P<dev>\d+))?)?
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$''', re.VERBOSE)
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def _parse_numdots(s, full_ver, drop_zeroes=False, min_length=0):
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"""Parse 'N.N.N' sequences, return a list of ints.
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@param s {str} 'N.N.N...' sequence to be parsed
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@param full_ver_str {str} The full version string from which this
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comes. Used for error strings.
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@param min_length {int} The length to which to pad the
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returned list with zeros, if necessary. Default 0.
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"""
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result = []
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for n in s.split("."):
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#if len(n) > 1 and n[0] == '0':
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# raise UnsupportedVersionError("cannot have leading zero in "
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# "version number segment: '%s' in %r" % (n, full_ver))
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result.append(int(n))
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if drop_zeroes:
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while (result and result[-1] == 0 and
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(1 + len(result)) > min_length):
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result.pop()
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return result
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def normalized_key(s, fail_on_huge_major_ver=True):
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match = _VERSION_RE.search(s)
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if not match:
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raise UnsupportedVersionError(s)
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groups = match.groupdict()
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parts = []
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# main version
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block = _parse_numdots(groups['version'], s, min_length=2)
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parts.append(tuple(block))
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# prerelease
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prerel = groups.get('prerel')
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if prerel is not None:
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block = [prerel]
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block += _parse_numdots(groups.get('prerelversion'), s, min_length=1)
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parts.append(tuple(block))
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else:
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parts.append(_FINAL_MARKER)
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# postdev
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if groups.get('postdev'):
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post = groups.get('post')
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dev = groups.get('dev')
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postdev = []
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if post is not None:
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postdev.extend((_FINAL_MARKER[0], 'post', int(post)))
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if dev is None:
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postdev.append(_FINAL_MARKER[0])
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if dev is not None:
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postdev.extend(('dev', int(dev)))
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parts.append(tuple(postdev))
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else:
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parts.append(_FINAL_MARKER)
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if fail_on_huge_major_ver and parts[0][0] > 1980:
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raise HugeMajorVersionError("huge major version number, %r, "
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"which might cause future problems: %r" % (parts[0][0], s))
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return tuple(parts)
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def suggest_normalized_version(s):
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"""Suggest a normalized version close to the given version string.
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If you have a version string that isn't rational (i.e. NormalizedVersion
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doesn't like it) then you might be able to get an equivalent (or close)
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rational version from this function.
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This does a number of simple normalizations to the given string, based
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on observation of versions currently in use on PyPI. Given a dump of
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those version during PyCon 2009, 4287 of them:
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- 2312 (53.93%) match NormalizedVersion without change
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with the automatic suggestion
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- 3474 (81.04%) match when using this suggestion method
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@param s {str} An irrational version string.
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@returns A rational version string, or None, if couldn't determine one.
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"""
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try:
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normalized_key(s)
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return s # already rational
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except UnsupportedVersionError:
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pass
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rs = s.lower()
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# part of this could use maketrans
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for orig, repl in (('-alpha', 'a'), ('-beta', 'b'), ('alpha', 'a'),
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('beta', 'b'), ('rc', 'c'), ('-final', ''),
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('-pre', 'c'),
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('-release', ''), ('.release', ''), ('-stable', ''),
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('+', '.'), ('_', '.'), (' ', ''), ('.final', ''),
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('final', '')):
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rs = rs.replace(orig, repl)
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# if something ends with dev or pre, we add a 0
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rs = re.sub(r"pre$", r"pre0", rs)
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rs = re.sub(r"dev$", r"dev0", rs)
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# if we have something like "b-2" or "a.2" at the end of the
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# version, that is pobably beta, alpha, etc
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# let's remove the dash or dot
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rs = re.sub(r"([abc]|rc)[\-\.](\d+)$", r"\1\2", rs)
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# 1.0-dev-r371 -> 1.0.dev371
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# 0.1-dev-r79 -> 0.1.dev79
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rs = re.sub(r"[\-\.](dev)[\-\.]?r?(\d+)$", r".\1\2", rs)
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# Clean: 2.0.a.3, 2.0.b1, 0.9.0~c1
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rs = re.sub(r"[.~]?([abc])\.?", r"\1", rs)
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# Clean: v0.3, v1.0
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if rs.startswith('v'):
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rs = rs[1:]
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# Clean leading '0's on numbers.
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#TODO: unintended side-effect on, e.g., "2003.05.09"
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# PyPI stats: 77 (~2%) better
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rs = re.sub(r"\b0+(\d+)(?!\d)", r"\1", rs)
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# Clean a/b/c with no version. E.g. "1.0a" -> "1.0a0". Setuptools infers
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# zero.
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# PyPI stats: 245 (7.56%) better
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rs = re.sub(r"(\d+[abc])$", r"\g<1>0", rs)
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# the 'dev-rNNN' tag is a dev tag
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rs = re.sub(r"\.?(dev-r|dev\.r)\.?(\d+)$", r".dev\2", rs)
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# clean the - when used as a pre delimiter
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rs = re.sub(r"-(a|b|c)(\d+)$", r"\1\2", rs)
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# a terminal "dev" or "devel" can be changed into ".dev0"
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rs = re.sub(r"[\.\-](dev|devel)$", r".dev0", rs)
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# a terminal "dev" can be changed into ".dev0"
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rs = re.sub(r"(?![\.\-])dev$", r".dev0", rs)
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# a terminal "final" or "stable" can be removed
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rs = re.sub(r"(final|stable)$", "", rs)
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# The 'r' and the '-' tags are post release tags
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# 0.4a1.r10 -> 0.4a1.post10
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# 0.9.33-17222 -> 0.9.33.post17222
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# 0.9.33-r17222 -> 0.9.33.post17222
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rs = re.sub(r"\.?(r|-|-r)\.?(\d+)$", r".post\2", rs)
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# Clean 'r' instead of 'dev' usage:
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# 0.9.33+r17222 -> 0.9.33.dev17222
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# 1.0dev123 -> 1.0.dev123
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# 1.0.git123 -> 1.0.dev123
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# 1.0.bzr123 -> 1.0.dev123
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# 0.1a0dev.123 -> 0.1a0.dev123
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# PyPI stats: ~150 (~4%) better
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rs = re.sub(r"\.?(dev|git|bzr)\.?(\d+)$", r".dev\2", rs)
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# Clean '.pre' (normalized from '-pre' above) instead of 'c' usage:
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# 0.2.pre1 -> 0.2c1
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# 0.2-c1 -> 0.2c1
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# 1.0preview123 -> 1.0c123
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# PyPI stats: ~21 (0.62%) better
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rs = re.sub(r"\.?(pre|preview|-c)(\d+)$", r"c\g<2>", rs)
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# Tcl/Tk uses "px" for their post release markers
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rs = re.sub(r"p(\d+)$", r".post\1", rs)
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try:
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normalized_key(rs)
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except UnsupportedVersionError:
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rs = None
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return rs
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@ -18,7 +18,7 @@ except ImportError:
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import dummy_threading as threading
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from pip.log import logger
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from pip.util import Inf, normalize_name, splitext
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from pip.util import Inf, normalize_name, splitext, is_prerelease
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from pip.exceptions import DistributionNotFound, BestVersionAlreadyInstalled
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from pip.backwardcompat import (WindowsError, BytesIO,
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Queue, urlparse,
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@ -183,6 +183,9 @@ class PackageFinder(object):
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logger.info("Ignoring link %s, version %s doesn't match %s"
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% (link, version, ','.join([''.join(s) for s in req.req.specs])))
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continue
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elif is_prerelease(version) and not req.prereleases:
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logger.info("Ignoring link %s, version %s is a pre-release (use --pre to allow)." % (link, version))
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continue
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applicable_versions.append((parsed_version, link, version))
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#bring the latest version to the front, but maintains the priority ordering as secondary
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applicable_versions = sorted(applicable_versions, key=lambda v: v[0], reverse=True)
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20
pip/req.py
20
pip/req.py
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@ -19,7 +19,7 @@ from pip.util import (display_path, rmtree, ask, ask_path_exists, backup_dir,
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is_installable_dir, is_local, dist_is_local,
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dist_in_usersite, dist_in_site_packages, renames,
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normalize_path, egg_link_path, make_path_relative,
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call_subprocess)
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call_subprocess, is_prerelease)
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from pip.backwardcompat import (urlparse, urllib, uses_pycache,
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ConfigParser, string_types, HTTPError,
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get_python_version, b)
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class InstallRequirement(object):
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def __init__(self, req, comes_from, source_dir=None, editable=False,
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url=None, as_egg=False, update=True):
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url=None, as_egg=False, update=True, prereleases=None):
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self.extras = ()
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if isinstance(req, string_types):
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req = pkg_resources.Requirement.parse(req)
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self.uninstalled = None
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self.use_user_site = False
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# True if pre-releases are acceptable
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if prereleases:
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self.prereleases = True
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elif self.req is not None:
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self.prereleases = any([is_prerelease(x[1]) and x[0] != "!=" for x in self.req.specs])
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else:
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self.prereleases = False
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@classmethod
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def from_editable(cls, editable_req, comes_from=None, default_vcs=None):
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name, url, extras_override = parse_editable(editable_req, default_vcs)
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else:
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source_dir = None
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res = cls(name, comes_from, source_dir=source_dir, editable=True, url=url)
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res = cls(name, comes_from, source_dir=source_dir, editable=True, url=url, prereleases=True)
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if extras_override is not None:
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res.extras = extras_override
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return res
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@classmethod
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def from_line(cls, name, comes_from=None):
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def from_line(cls, name, comes_from=None, prereleases=None):
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"""Creates an InstallRequirement from a name, which might be a
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requirement, directory containing 'setup.py', filename, or URL.
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"""
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else:
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req = name
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return cls(req, comes_from, url=url)
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return cls(req, comes_from, url=url, prereleases=prereleases)
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def __str__(self):
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if self.req:
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req = InstallRequirement.from_editable(
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line, comes_from=comes_from, default_vcs=options.default_vcs)
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else:
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req = InstallRequirement.from_line(line, comes_from)
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req = InstallRequirement.from_line(line, comes_from, prereleases=getattr(options, "pre", None))
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yield req
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18
pip/util.py
18
pip/util.py
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@ -14,6 +14,7 @@ from pip.backwardcompat import(WindowsError, string_types, raw_input,
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console_to_str, user_site, ssl)
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from pip.locations import site_packages, running_under_virtualenv, virtualenv_no_global
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from pip.log import logger
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from pip import distlib
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__all__ = ['rmtree', 'display_path', 'backup_dir',
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'find_command', 'ask', 'Inf',
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% (command_desc, proc.returncode, cwd))
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if stdout is not None:
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return ''.join(all_output)
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def is_prerelease(version):
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"""
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Attempt to determine if this is a pre-release using PEP386/PEP426 rules.
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Will return True if it is a pre-release, False is not, and None if we cannot
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determine.
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"""
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normalized = distlib.version.suggest_normalized_version(version)
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if normalized is None:
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# Cannot normalize
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return
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parsed = distlib.version.normalized_key(normalized)
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return any([any([y in set(["a", "b", "c", "rc", "dev"]) for y in x]) for x in parsed])
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2
setup.py
2
setup.py
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author_email='python-virtualenv@groups.google.com',
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url='http://www.pip-installer.org',
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license='MIT',
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packages=['pip', 'pip.commands', 'pip.vcs', 'pip.backwardcompat'],
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packages=['pip', 'pip.commands', 'pip.vcs', 'pip.backwardcompat', 'pip.distlib'],
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package_data={'pip': ['*.pem']},
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entry_points=dict(console_scripts=['pip=pip:main', 'pip-%s=pip:main' % sys.version[:3]]),
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test_suite='nose.collector',
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