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[mypy] Fixes typing errors in other/dpll #5759

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Merged
merged 1 commit into from
Nov 3, 2021

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@spazm spazm commented Nov 3, 2021

Describe your change:

  • As per usage examples, clause literals are a list of strings.
    • Note: symbols extracted from literals are expected to be exactly two characters.
  • self.literal boolean values are initialized to None, so must be optional
  • model values should be Booleans, but aren't guaranteed to be non-None
    in the code.
  • uses newer '... | None' annotation for Optional values
  • clauses are passed to the Formula initializer as both lists and sets, they
    are stored as lists. Returned clauses will always be lists.
  • use explicit tuple annotation from future rather than using (..., ...)
    in return signatures
  • mapping returned by dpll_algorithm is optional per the documentation.

Related to #4052
Clone of #5648

Before

% git checkout master
Switched to branch 'master'

% mypy ./davisb_putnamb_logemannb_loveland.py
davisb_putnamb_logemannb_loveland.py:43: error: Argument 1 to "join" of "str" has incompatible type "Dict[int, None]"; expected "Iterable[str]"
davisb_putnamb_logemannb_loveland.py:60: error: Value of type "int" is not indexable
davisb_putnamb_logemannb_loveland.py:67: error: "int" has no attribute "endswith"
davisb_putnamb_logemannb_loveland.py:69: error: Incompatible types in assignment (expression has type "bool", target has type "None")
davisb_putnamb_logemannb_loveland.py:81: error: "int" has no attribute "rstrip"
davisb_putnamb_logemannb_loveland.py:81: error: "int" has no attribute "endswith"
davisb_putnamb_logemannb_loveland.py:81: error: Unsupported operand types for + ("int" and "str")
davisb_putnamb_logemannb_loveland.py:88: error: Incompatible return value type (got "None", expected "bool")
davisb_putnamb_logemannb_loveland.py:135: error: Argument 1 to "Clause" has incompatible type "List[str]"; expected "List[int]"
davisb_putnamb_logemannb_loveland.py:142: error: Need type annotation for "clauses" (hint: "clauses: Set[<type>] = ...")
davisb_putnamb_logemannb_loveland.py:146: error: Argument 1 to "Formula" has incompatible type "Set[Clause]"; expected "List[Clause]"
davisb_putnamb_logemannb_loveland.py:149: error: Syntax error in type annotation
davisb_putnamb_logemannb_loveland.py:149: note: Suggestion: Use Tuple[T1, ..., Tn] instead of (T1, ..., Tn)
davisb_putnamb_logemannb_loveland.py:169: error: Value of type "int" is not indexable
davisb_putnamb_logemannb_loveland.py:177: error: Syntax error in type annotation
davisb_putnamb_logemannb_loveland.py:177: note: Suggestion: Use Tuple[T1, ..., Tn] instead of (T1, ..., Tn)
davisb_putnamb_logemannb_loveland.py:201: error: Need type annotation for "assignment" (hint: "assignment: Dict[<type>, <type>] = ...")
davisb_putnamb_logemannb_loveland.py:229: error: Syntax error in type annotation
davisb_putnamb_logemannb_loveland.py:229: note: Suggestion: Use Tuple[T1, ..., Tn] instead of (T1, ..., Tn)
davisb_putnamb_logemannb_loveland.py:268: error: Value of type "int" is not indexable
davisb_putnamb_logemannb_loveland.py:269: error: Argument 1 to "len" has incompatible type "int"; expected "Sized"
davisb_putnamb_logemannb_loveland.py:270: error: Value of type "int" is not indexable
davisb_putnamb_logemannb_loveland.py:277: error: Syntax error in type annotation
davisb_putnamb_logemannb_loveland.py:277: note: Suggestion: Use Tuple[T1, ..., Tn] instead of (T1, ..., Tn)
Found 20 errors in 1 file (checked 1 source file)

After

% git checkout -
Switched to branch 'mypy-fix-other-davisb'
Your branch is up to date with 'origin/mypy-fix-other-davisb'.

% mypy ./davisb_putnamb_logemannb_loveland.py 
Success: no issues found in 1 source file
% mypy --strict ./davisb_putnamb_logemannb_loveland.py
Success: no issues found in 1 source file
  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Documentation change?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
  • If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

+ As per usage examples, clause literals are a list of strings.
  + Note: symbols extracted from literals are expected to be exactly two characters.
+ self.literal boolean values are initialized to None, so must be optional
+ model values should be Booleans, but aren't guaranteed to be non-None
  in the code.
+ uses newer '... | None' annotation for Optional values
+ clauses are passed to the Formula initializer as both lists and sets, they
  are stored as lists.  Returned clauses will always be lists.
+ use explicit tuple annotation from __future__  rather than using (..., ...)
  in return signatures
+ mapping returned by dpll_algorithm is optional per the documentation.
@spazm spazm marked this pull request as ready for review November 3, 2021 13:01
@ghost ghost added awaiting reviews This PR is ready to be reviewed enhancement This PR modified some existing files labels Nov 3, 2021
@ghost ghost removed the awaiting reviews This PR is ready to be reviewed label Nov 3, 2021
@l3str4nge l3str4nge merged commit 7954a3a into TheAlgorithms:master Nov 3, 2021
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