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author | Shubham Saini <shubham6405@gmail.com> | 2019-08-05 08:32:33 +0000 |
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committer | Shubham Saini <shubham6405@gmail.com> | 2019-08-05 08:32:33 +0000 |
commit | 227b2d30a8675b44918f9d9ca89b24144a938215 (patch) | |
tree | 9f8e6a28724514b6fdf463a9ab2067a7ef309b72 /venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py | |
parent | 842a8cfbbbdb1f92889d892e4859dbd5d40c5be8 (diff) |
removing venv files
Diffstat (limited to 'venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py')
-rw-r--r-- | venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py deleted file mode 100644 index bab6b9f..0000000 --- a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/operations/check.py +++ /dev/null | |||
@@ -1,106 +0,0 @@ | |||
1 | """Validation of dependencies of packages | ||
2 | """ | ||
3 | |||
4 | from collections import namedtuple | ||
5 | |||
6 | from pip._vendor.packaging.utils import canonicalize_name | ||
7 | |||
8 | from pip._internal.operations.prepare import make_abstract_dist | ||
9 | |||
10 | from pip._internal.utils.misc import get_installed_distributions | ||
11 | from pip._internal.utils.typing import MYPY_CHECK_RUNNING | ||
12 | |||
13 | if MYPY_CHECK_RUNNING: | ||
14 | from pip._internal.req.req_install import InstallRequirement | ||
15 | from typing import Any, Dict, Iterator, Set, Tuple, List | ||
16 | |||
17 | # Shorthands | ||
18 | PackageSet = Dict[str, 'PackageDetails'] | ||
19 | Missing = Tuple[str, Any] | ||
20 | Conflicting = Tuple[str, str, Any] | ||
21 | |||
22 | MissingDict = Dict[str, List[Missing]] | ||
23 | ConflictingDict = Dict[str, List[Conflicting]] | ||
24 | CheckResult = Tuple[MissingDict, ConflictingDict] | ||
25 | |||
26 | PackageDetails = namedtuple('PackageDetails', ['version', 'requires']) | ||
27 | |||
28 | |||
29 | def create_package_set_from_installed(**kwargs): | ||
30 | # type: (**Any) -> PackageSet | ||
31 | """Converts a list of distributions into a PackageSet. | ||
32 | """ | ||
33 | # Default to using all packages installed on the system | ||
34 | if kwargs == {}: | ||
35 | kwargs = {"local_only": False, "skip": ()} | ||
36 | retval = {} | ||
37 | for dist in get_installed_distributions(**kwargs): | ||
38 | name = canonicalize_name(dist.project_name) | ||
39 | retval[name] = PackageDetails(dist.version, dist.requires()) | ||
40 | return retval | ||
41 | |||
42 | |||
43 | def check_package_set(package_set): | ||
44 | # type: (PackageSet) -> CheckResult | ||
45 | """Check if a package set is consistent | ||
46 | """ | ||
47 | missing = dict() | ||
48 | conflicting = dict() | ||
49 | |||
50 | for package_name in package_set: | ||
51 | # Info about dependencies of package_name | ||
52 | missing_deps = set() # type: Set[Missing] | ||
53 | conflicting_deps = set() # type: Set[Conflicting] | ||
54 | |||
55 | for req in package_set[package_name].requires: | ||
56 | name = canonicalize_name(req.project_name) # type: str | ||
57 | |||
58 | # Check if it's missing | ||
59 | if name not in package_set: | ||
60 | missed = True | ||
61 | if req.marker is not None: | ||
62 | missed = req.marker.evaluate() | ||
63 | if missed: | ||
64 | missing_deps.add((name, req)) | ||
65 | continue | ||
66 | |||
67 | # Check if there's a conflict | ||
68 | version = package_set[name].version # type: str | ||
69 | if not req.specifier.contains(version, prereleases=True): | ||
70 | conflicting_deps.add((name, version, req)) | ||
71 | |||
72 | def str_key(x): | ||
73 | return str(x) | ||
74 | |||
75 | if missing_deps: | ||
76 | missing[package_name] = sorted(missing_deps, key=str_key) | ||
77 | if conflicting_deps: | ||
78 | conflicting[package_name] = sorted(conflicting_deps, key=str_key) | ||
79 | |||
80 | return missing, conflicting | ||
81 | |||
82 | |||
83 | def check_install_conflicts(to_install): | ||
84 | # type: (List[InstallRequirement]) -> Tuple[PackageSet, CheckResult] | ||
85 | """For checking if the dependency graph would be consistent after \ | ||
86 | installing given requirements | ||
87 | """ | ||
88 | # Start from the current state | ||
89 | state = create_package_set_from_installed() | ||
90 | _simulate_installation_of(to_install, state) | ||
91 | return state, check_package_set(state) | ||
92 | |||
93 | |||
94 | # NOTE from @pradyunsg | ||
95 | # This required a minor update in dependency link handling logic over at | ||
96 | # operations.prepare.IsSDist.dist() to get it working | ||
97 | def _simulate_installation_of(to_install, state): | ||
98 | # type: (List[InstallRequirement], PackageSet) -> None | ||
99 | """Computes the version of packages after installing to_install. | ||
100 | """ | ||
101 | |||
102 | # Modify it as installing requirement_set would (assuming no errors) | ||
103 | for inst_req in to_install: | ||
104 | dist = make_abstract_dist(inst_req).dist(finder=None) | ||
105 | name = canonicalize_name(dist.key) | ||
106 | state[name] = PackageDetails(dist.version, dist.requires()) | ||