def get_python_constraint_from_marker(
marker, ): # type: (BaseMarker) -> VersionConstraint
python_marker = marker.only("python_version")
if python_marker.is_any():
return VersionRange()
if python_marker.is_empty():
return EmptyConstraint()
markers = convert_markers(marker)
ors = []
for or_ in markers["python_version"]:
ands = []
for op, version in or_:
# Expand python version
if op == "==":
version = "~" + version
op = ""
elif op == "!=":
version += ".*"
elif op in ("<=", ">"):
parsed_version = Version.parse(version)
if parsed_version.precision == 1:
if op == "<=":
op = "<"
version = parsed_version.next_major.text
elif op == ">":
op = ">="
version = parsed_version.next_major.text
elif parsed_version.precision == 2:
if op == "<=":
op = "<"
version = parsed_version.next_minor.text
elif op == ">":
op = ">="
version = parsed_version.next_minor.text
elif op in ("in", "not in"):
versions = []
for v in re.split("[ ,]+", version):
split = v.split(".")
if len(split) in [1, 2]:
split.append("*")
op_ = "" if op == "in" else "!="
else:
op_ = "==" if op == "in" else "!="
versions.append(op_ + ".".join(split))
glue = " || " if op == "in" else ", "
if versions:
ands.append(glue.join(versions))
continue
ands.append("{}{}".format(op, version))
ors.append(" ".join(ands))
return parse_constraint(" || ".join(ors))
def test_allows_any(v003, v010, v072, v080, v114, v123, v124, v140, v200, v234,
v250, v300):
# disallows an empty constraint
assert not VersionRange(v123, v250).allows_any(EmptyConstraint())
# allows allowed versions
range = VersionRange(v123, v250, include_max=True)
assert not range.allows_any(v123)
assert range.allows_any(v124)
assert range.allows_any(v250)
assert not range.allows_any(v300)
# with no min
range = VersionRange(max=v200)
assert range.allows_any(VersionRange(v140, v300))
assert not range.allows_any(VersionRange(v234, v300))
assert range.allows_any(VersionRange(v140))
assert not range.allows_any(VersionRange(v234))
assert range.allows_any(range)
# with no max
range = VersionRange(min=v072)
assert range.allows_any(VersionRange(v003, v140))
assert not range.allows_any(VersionRange(v003, v010))
assert range.allows_any(VersionRange(max=v080))
assert not range.allows_any(VersionRange(max=v003))
assert range.allows_any(range)
# with min and max
range = VersionRange(v072, v200)
assert range.allows_any(VersionRange(v003, v140))
assert range.allows_any(VersionRange(v140, v300))
assert not range.allows_any(VersionRange(v003, v010))
assert not range.allows_any(VersionRange(v234, v300))
assert not range.allows_any(VersionRange(max=v010))
assert not range.allows_any(VersionRange(v234))
assert range.allows_any(range)
# allows a bordering range when both are inclusive
assert not VersionRange(max=v250).allows_any(VersionRange(min=v250))
assert not VersionRange(max=v250, include_max=True).allows_any(
VersionRange(min=v250))
assert not VersionRange(max=v250).allows_any(
VersionRange(min=v250, include_min=True))
assert not VersionRange(min=v250).allows_any(VersionRange(max=v250))
assert VersionRange(max=v250, include_max=True).allows_any(
VersionRange(min=v250, include_min=True))
# allows unions that are partially contained'
range = VersionRange(v114, v200)
assert range.allows_any(VersionRange(v010, v080).union(v140))
assert range.allows_any(VersionRange(v123, v234).union(v300))
assert not range.allows_any(VersionRange(v234, v300).union(v010))
# pre-release min does not allow lesser than itself
range = VersionRange(Version.parse("1.9b1"), include_min=True)
assert not range.allows_any(
VersionRange(
Version.parse("1.8.0"), Version.parse("1.9.0"), include_min=True))
def test_allows_all():
v = Version.parse("1.2.3")
assert v.allows_all(v)
assert not v.allows_all(Version.parse("0.0.3"))
assert not v.allows_all(
VersionRange(Version.parse("1.1.4"), Version.parse("1.2.4")))
assert not v.allows_all(VersionRange())
assert v.allows_all(EmptyConstraint())
def test_allows_all(v003, v010, v080, v114, v123, v124, v140, v200, v234, v250,
v300):
assert VersionRange(v123, v250).allows_all(EmptyConstraint())
range = VersionRange(v123, v250, include_max=True)
assert not range.allows_all(v123)
assert range.allows_all(v124)
assert range.allows_all(v250)
assert not range.allows_all(v300)
# with no min
range = VersionRange(max=v250)
assert range.allows_all(VersionRange(v080, v140))
assert not range.allows_all(VersionRange(v080, v300))
assert range.allows_all(VersionRange(max=v140))
assert not range.allows_all(VersionRange(max=v300))
assert range.allows_all(range)
assert not range.allows_all(VersionRange())
# with no max
range = VersionRange(min=v010)
assert range.allows_all(VersionRange(v080, v140))
assert not range.allows_all(VersionRange(v003, v140))
assert range.allows_all(VersionRange(v080))
assert not range.allows_all(VersionRange(v003))
assert range.allows_all(range)
assert not range.allows_all(VersionRange())
# Allows bordering range that is not more inclusive
exclusive = VersionRange(v010, v250)
inclusive = VersionRange(v010, v250, True, True)
assert inclusive.allows_all(exclusive)
assert inclusive.allows_all(inclusive)
assert not exclusive.allows_all(inclusive)
assert exclusive.allows_all(exclusive)
# Allows unions that are completely contained
range = VersionRange(v114, v200)
assert range.allows_all(VersionRange(v123, v124).union(v140))
assert not range.allows_all(VersionRange(v010, v124).union(v140))
assert not range.allows_all(VersionRange(v123, v234).union(v140))