microsoft/pyright
1
1
Fork 0
mirror of https://github.com/microsoft/pyright.git synced 2024-07-14 19:10:39 +03:00
Code Issues Projects Releases Wiki Activity
7,630 Commits 7 Branches 452 Tags 114 MiB
main
Commit Graph

491 Commits

Author SHA1 Message Date
Eric Traut
5d6eacd5e1
Changed the default of the useLibraryCodeForTypes from false to true to bring pylance and pyright into alignment. Also deprecated the "--lib" command-line option, which was previously used to enable useLibraryCodeForTypes from the command line. (#4903) 
Co-authored-by: Eric Traut <erictr@microsoft.com>
 2023-04-05 09:47:59 -06:00
Eric Traut
ff134e6467 Added documentation to mypy comparison that talks about narrowing for captured variables. 2023-04-02 08:34:28 -07:00
Eric Traut
08085479ef Extended type narrowing for type guards of the form x[I] is B and x[I] is not B where x is a tuple and B is an enum literal. 2023-03-30 18:26:46 -07:00
Eric Traut
f1db88481f Added support for type guards of the form x[I] is B and x[I] is not B where x is a tuple and B is a boolean literal True or False. This addresses part of https://github.com/microsoft/pyright/issues/4875. 2023-03-30 18:10:06 -07:00
Dmitry Volodin
14b0831697
Fix Markdown links (#4849) 
* Fixed Markdown links

* Gave main doc page prettier name
 2023-03-27 19:48:11 -06:00
Eric Traut
e2e3a5c9ff Added new diagnostic check reportImplicitOverride. This addresses https://github.com/microsoft/pyright/issues/4788. 2023-03-16 09:52:25 -06:00
Eric Traut
65ca325a14 Changed # pyright: basic file-level comment so it overrides "strict" settings specified in the config file or language server settings. This allows an individual file to be "downgraded" from strict to basic. This addresses https://github.com/microsoft/pyright/issues/4751. 2023-03-09 10:28:44 -07:00
Eric Traut
3f987e3137 Fixed broken links in README for npmjs page. Added missing link to command line interface documentation in sidebar. 2023-03-09 09:46:17 -07:00
Eric Traut
9c6ebad347 Updated mypy comparison to reflect change in mypy's type narrowing capabilities. 2023-03-09 08:21:01 -07:00
Eric Traut
c83a95e62e More improvements to documentation. 2023-03-07 16:38:22 -07:00
Eric Traut
414dce170e Updated documentation for import modeling differences between mypy and pyright. 2023-03-07 10:16:14 -07:00
Eric Traut
1fdeadeca6 Improved "getting started" documentation. 2023-03-07 09:53:49 -07:00
Eric Traut
a00a026953 Fixed capitalization inconsistency in docs. 2023-03-06 18:12:20 -07:00
Eric Traut
08b2cb4698 Did a consistency pass on documentation markdown. 2023-03-06 18:10:33 -07:00
Eric Traut
f7db5822ef Ran auto-formatter on html to avoid style issue in CI. 2023-03-06 17:59:23 -07:00
Eric Traut
8f17673300 Fixed main Pyright link in sidebar. 2023-03-06 17:55:58 -07:00
Eric Traut
400dd260cc Another small tweak to docs sidebar. 2023-03-06 17:54:36 -07:00
Eric Traut
2c4a9da2ae More tweaks to documentation and README files. Added a navbar to docs site. 2023-03-06 17:52:06 -07:00
Eric Traut
65874c5254 Small tweak for main docs page. 2023-03-06 17:45:37 -07:00
Eric Traut
deabba5e6a Tweaked documentation theming and added language highlighting for json. 2023-03-06 17:44:15 -07:00
Eric Traut
2827c94d89 Small correction to settings documentation. 2023-03-06 16:10:06 -07:00
Eric Traut
dc87fa46af Added a missing HTML tag to index.html. 2023-03-06 16:03:19 -07:00
Eric Traut
6cb2f4a058 Moved installation instructions and FAQ to their own docs pages, further simplifying the main README. 2023-03-06 15:58:44 -07:00
Eric Traut
b61f121efe Minor tweak to README. 2023-03-06 15:51:49 -07:00
Eric Traut
4c4aec52a5 Added support for docsify-based docs site. 2023-03-06 15:46:07 -07:00
Eric Traut
b3fd962116 Fixed bugs in documentation. 2023-03-06 15:45:51 -07:00
Eric Traut
735c19a1c9 Improved documentation for ... function bodies. 2023-03-06 10:49:54 -07:00
Eric Traut
7197a8d624 Added documentation for import statements. 2023-03-06 08:49:00 -07:00
Eric Traut
81f21ee3d4 Added support for type guard patterns type(x) == T and type(x) != T. This addresses https://github.com/microsoft/pyright/issues/4719. 2023-03-01 23:29:44 -07:00
ErezAmihud
2857963212
add gitlab ci documentation (#4704) 2023-02-27 13:57:05 -07:00
Eric Traut
526d907def Slimmed down the README to remove information that most pyright users probably don't care about. Features of pyright were moved to a separate "features.md" document. 2023-02-26 10:54:20 -07:00
Eric Traut
344b091bfe Minor formatting improvements to documentation. 2023-02-14 18:23:13 -08:00
Eric Traut
4eb4397a90 Updated documentation for default exclude settings. 2023-02-08 13:09:55 -08:00
Eric Traut
f8eb114de3 Fixed a few typos in the pyright documentation. 2023-02-01 08:09:36 -08:00
Eric Traut
b17f64ddcb A few more tweaks to the documentation for consistency. 2023-01-27 09:29:38 -08:00
Eric Traut
3829e8e32d Tweaked documentation for readability. 2023-01-27 09:26:30 -08:00
Eric Traut
53e8cd4145 Added provisional support for draft PEP 702 (marking deprecations using the type system). 2023-01-13 21:16:07 -08:00
Eric Traut
a2784020f2 Added support for x[K] is V and x[K] is not V type narrowing forms. This addresses https://github.com/microsoft/pyright/issues/4453. 2023-01-13 16:53:18 -08:00
Eric Traut
452bd59778 Updated build instructions. 2023-01-08 09:20:12 -08:00
Christian Clauss
bd3ac8b722
Fix typos discovered by codespell (#4399) 2023-01-04 06:54:43 -07:00
Eric Traut
c7626944f1 Added support for type guard forms x is ..., x is not ..., x == ... and x != .... Support for these were recently added to mypy. This addresses https://github.com/microsoft/pyright/issues/4397. 2023-01-04 06:13:44 -07:00
Christian Clauss
7be1d77360
Fix typo (#4398) 2023-01-04 05:53:27 -07:00
Eric Traut
775b7b4d85 Improved handling of TypeVars that appear only within a Callable within a return type annotation for a function. By a strict reading of PEP 484, these should be bound to the function's scope, but practically, they are bound to the Callable. This allows a function to return a generic callable type. When TypeVars are rescoped in this manner, the TypeVar cannot be referenced within the function body because it is no longer in scope in that context. This addresses https://github.com/microsoft/pyright/issues/4285. 2022-12-25 10:57:02 -07:00
Eric Traut
0be873e289 Fixed a couple of typos in the documentation. 2022-12-21 10:47:28 -07:00
Eric Traut
97b6231d13 Added a few more minor improvements to the docs. 2022-12-18 18:40:29 -08:00
Jelle Zijlstra
355361e8b3
fix typos in mypy-comparison (#4354) 
* fix typos in mypy-comparison

* fix versions
 2022-12-18 18:15:17 -08:00
Eric Traut
e3ddbb3171 Small tweaks to the new documentation based on proofreading pass. 2022-12-18 15:24:59 -08:00
Eric Traut
5a19cb9f0a Added documentation that covers the major behavioral differences between pyright and mypy and the justifications for those differences. 2022-12-18 15:11:11 -08:00
Eric Traut
c4e61dcc6a Fixed a few bugs in the type guard documentation. 2022-12-18 15:10:30 -08:00
Eric Traut
8d3a6e62c8 Further clarified the new overload behavior in the documentation. 2022-12-18 08:06:47 -08:00
Eric Traut
1dc84b93b1 Modified the overload matching algorithm to match the behavior of mypy when the overload match is ambiguous because an argument evaluates to Any or Unknown. In this case, the call expression evaluates to Unknown. Previously, pyright used the first of the matching overloads in this case. This addresses https://github.com/microsoft/pyright/issues/4347. 2022-12-16 23:18:37 -08:00
Eric Traut
2f21a0d975 Fixed a bug in the dictionary inference documentation. 2022-12-16 19:27:12 -08:00
Eric Traut
8458382477 Implemented a new --level command-line option that allows filtering of 'information' and 'warning' diagnostics. 2022-12-14 09:20:15 -08:00
Rich Chiodo
4897e993d5
Fix 'reportShadowedImports' link 
Fixes https://github.com/microsoft/pylance-release/issues/3752
 2022-12-12 09:51:37 -08:00
Eric Traut
5f48e39671 Exposed new configuration setting analyzeUnannotatedFunctions which corresponds to the --skipunannotated command-line option. Added an information diagnostic for skipped functions. This addresses https://github.com/microsoft/pyright/issues/4303. 2022-12-08 20:05:32 -08:00
Steve C
fa75fd6556
Fix typo in -> is, in typed-libraries.md (#4180) 2022-11-10 17:51:04 -08:00
Rich Chiodo
04a1058378
20221121 (#4174) 2022-11-09 16:00:25 -08:00
Rich Chiodo
8c0ba8a78a
Show a warning when a stdlib module is being overridden (#4132) 
* Working for simple cases

* Fix localize

* Move logic to source mapper

* Add support for the current file

* Add rename file command

* Fix comments

* Closer to getting tests to work. Rename added

* Rework how stdlib modules are found. Fix tests

* Do the rename without bringing up a dialog

* Fix tests and add docs

* Fix tests on unix

* Review feedback

* Default shadowed imports to off

* Missed spot for execEnv not needing to be passed
 2022-11-04 16:45:16 -07:00
Ignacio Vergara Kausel
512df5e922
Update type-concepts.md (#4099) 
Fixed typo in documentation.
 2022-10-27 06:05:31 -07:00
Eric Traut
d5d27505ef Updated types in documentation to use PEP 604 syntax. 2022-10-24 20:06:21 -07:00
Eric Traut
8538998719 Extended the defineConstant mechanism to work with conditional statements that contain member access expressions that reference a defined member name. This addresses https://github.com/microsoft/pyright/issues/4060. 2022-10-18 15:28:17 -07:00
Kwanghoon Choi
40d511fadc
Update type-concepts.md (#4029) 
A fix to add a missing parameter to isinstance as:
 - isinstance(val, Bar)
 2022-10-09 23:24:19 -07:00
Erik De Bonte
f21d04f204
Editable install docs (#4020) 2022-10-07 11:44:33 -07:00
Eric Traut
4105b97749 Updated documentation for pre-commit hooks to eliminate confusion and point users to the pyright-python wrapper. 2022-09-03 11:58:28 -06:00
Eric Traut
285550c5ce Updated configuration documentation to include reportUnnecessaryContains in the table. 2022-07-17 23:42:44 -07:00
Eric Traut
7f3e7b0d2e Added support for new reportUnnecessaryContains diagnostic rule to catch potential bugs in in and not in containment checks. 2022-07-17 23:29:50 -07:00
Eric Traut
04945a4309 Made tweak to documentation for clarity. 2022-06-23 08:34:18 -07:00
Keming
de86a34dd4
fix typo (#3601) 2022-06-21 19:08:37 -07:00
Eric Traut
4ae8b9233e Made suggested improvements to documentation. 2022-06-18 23:00:11 -07:00
Eric Traut
055dc1296a Updated comments documentation to talk about reportTypeCommentUsage diagnostic check. 2022-06-12 11:50:47 -07:00
Eric Traut
484faf7ba3 Added support for new reportTypeCommentUsage diagnostic check. It flag the usage of # type: xxx comments for functions and variables. These are still supported for backward compatibility, but they are increasingly irrelevant and will likely be deprecated in the next few years. 2022-06-09 21:00:47 -07:00
Eric Traut
794d151050 Added new configuration setting called "defineConstant". It allows a configuration to specify one or more identifiers that should be assigned by pyright's binder to be constant anywhere they appear. Values can be boolean (true or false) or a string. If an identifier of this value is used within a conditional statement (like if not DEBUG:) it will affect pyright's reachability analysis for the guarded code blocks. 2022-06-08 22:01:33 -07:00
Eric Traut
f2328237d3 Extended the "X in Y" type narrowing to support dict, defaultdict and OrderedDict classes. 2022-05-30 00:55:22 -07:00
Eric Traut
255497446a Fixed bug in type narrowing logic for expressions of the form "X not in Y". 2022-05-29 23:54:15 -07:00
Eric Traut
21a67358df Specified that node.js 14.x should be used. 2022-05-21 10:47:05 -07:00
Eric Traut
42ad212d8d Added missing quotes in library documentation for __all__ statements. 2022-05-19 17:12:04 -07:00
Eric Traut
48c910d0e3 Added back git hook example for non-github users. 2022-05-19 16:04:32 -07:00
Eric Traut
4b65372d4a Changed CI integration instructions to point to the pyright-action project. 2022-05-19 15:34:10 -07:00
Eric Traut
5840e3eb7c Improved docs string for the --skipunannotated command line option. 2022-05-18 15:29:06 -07:00
Eric Traut
8d5da97ba6 More doc improvements. 2022-05-08 11:12:37 -07:00
Eric Traut
9f08b64bcd Added documentation for class and instance variables. 2022-05-08 11:09:48 -07:00
Eric Traut
3b5752431b Extended type guard for discriminated literal fields to support properties. 2022-04-29 20:39:32 -07:00
Eric Traut
2c7bcc81e1 Updated library guidance to include a small section on positional-only parameters. 2022-04-15 21:42:42 -07:00
Eric Traut
ab1fbfc0d6 Enhanced reportUnnecessaryComparison diagnostic check so it also detects cases where a function appears within a condition expression. This is a common source of programming error. 2022-04-10 23:33:41 -07:00
Eric Traut
8660a6f870
Added support for type guard based on a.b is None or a.b is not None patterns where b is a member variable that distinguishes two different classes. (#3273) 
Co-authored-by: Eric Traut <erictr@microsoft.com>
 2022-04-01 11:06:53 -07:00
Eric Traut
d1e5c924bd Revert "Add support for type narrowing of NamedTuple fields with "is None" (#3271)" 
This reverts commit e296cd58ee.
 2022-03-29 20:02:54 -06:00
Kevin Coffey
e296cd58ee
Add support for type narrowing of NamedTuple fields with "is None" (#3271) 
* Add support for type narrowing of NamedTuple fields with is None.

* Add description for `x.y is None` narrowing

Fix capitalization for filename of sample in test.
 2022-03-29 19:59:55 -06:00
Eric Traut
189f0314bb Another attempt at formatting 2022-03-20 14:35:38 -06:00
Eric Traut
fadeea36b4 Updated diagnostic rule table so it groups basic and strict diagnostics. 2022-03-20 14:34:42 -06:00
Eric Traut
d28c481535 Added new diagnostic check reportUnusedExpression to catch bugs like a == 4 when a = 4 was intended. 2022-03-13 15:25:18 -06:00
Eric Traut
77dc80f48a Clarified the role of __all__ in the libraries documentation. 2022-03-11 18:11:55 -07:00
Eric Traut
2aeac06f5e Updated comments doc to talk about reportUnnecessaryTypeIgnoreComment. 2022-03-11 17:55:20 -07:00
Eric Traut
4cbd352d39 Added support for per-line suppression of diagnostics using # pyright: ignore comment. This also supports rule-specific suppression using a list of diagnostic rules, as in # pyright: ignore [reportGeneralTypeIssues]. 2022-03-11 09:47:41 -07:00
Eric Traut
a4900ebd03 Extended support for narrowing of index expressions to include those with negative subscripts, such as a[-1]. This is supported for all supported type guard patterns. 2022-03-05 01:35:17 -07:00
Eric Traut
faecce31ad Updated library guidance to clarify that submodules under a private module are also considered private. 2022-03-04 17:52:51 -07:00
Eric Traut
c9b9676e21 Updated package type verifier to differentiate between "unknown" and "ambiguous" types. 2022-02-24 15:12:36 -07:00
Eric Traut
c061adb5b8 Fixed typo in documentation. 2022-02-22 16:01:28 -07:00
Eric Traut
450524d004 Added support for parameter type inference based on annotated base class method signatures and on default argument expressions. 2022-02-22 12:42:14 -07:00
Eric Traut
dc24fab779 Changed strictParameterNoneValue to default to true rather than false. This reflects the updated guidance in PEP 484, which indicates that type checkers should not assume that a default argument of None should imply an Optional type. 2022-02-21 17:54:31 -07:00
Eric Traut
4d75f59065 Fixed typo in documentation. 2022-02-19 14:11:16 -07:00
Eric Traut
92b4028cd5 Changed the behavior of the package type verifier so it does not flag unannotated class or instance variables if a parent class provides a type annotation for a variable of the same name. The type is inherited in this case. Also updated the library guidance to reflect this change. 2022-02-11 10:25:48 -08:00
Jelle Zijlstra
3cc4e6ccdd
Document reveal_type() and reveal_locals() (#2996) 
reveal_locals() was not documented anywhere, which may be part of why so few people know about it.

Happy to put this somewhere else if you prefer.
 2022-02-05 19:21:30 -08:00
Eric Traut
94db5376c1 Added the ability to add new symbols to builtins by simply adding a type stub file named __builtins__.pyi locally. 2022-02-02 19:27:12 -08:00
Eric Traut
10a122ccd6 Fixed error in documentation for reportInvalidTypeVarUse. 2022-01-29 07:54:18 -08:00
Eric Traut
6776c0ce86 Fixed bug in documentation for reportMissingImports. 2022-01-29 00:05:40 -08:00
Eric Traut
a03acb0f41 Changed import resolution order to more closely match PEP 561. Typeshed stdlib type stubs are now resolved later in the import resolution process, after all local modules and modules within the python environment. 2022-01-27 22:57:30 -08:00
Eric Traut
b69843cf03 Updated type inference documentation to eliminate a statement that was leading to some confusion. 2022-01-27 13:20:55 -08:00
Eric Traut
b740ddfae5 Added new diagnostic check "reportMatchNotExhaustive" which reports cases where a match statement doesn't exhaustively cover all cases. 2022-01-23 12:49:27 -08:00
Eric Traut
da81cdf22f Updated documentation to cover the new # pyright: basic comment. 2022-01-19 12:53:07 -08:00
Eric Traut
163ef21c3c Changed "reportMissingSuperCall" to be off by default in strict mode. 2022-01-14 14:13:49 -08:00
Eric Traut
62ac83694e Implemented a new diagnostic check "reportMissingSuperCall" that checks for __init__, __init_subclass__, __enter__ and __exit__ methods that fail to call through to their parent class(es) methods of the same name. This is a common source of bugs. The check is disabled by default in basic mode but enabled by default in strict mode. 2022-01-14 11:55:23 -08:00
Eric Traut
4934e906d5 Added new diagnostic check reportInconsistentConstructor that checks for inconsistent input signatures between __new__ and __init__ methods. 2022-01-12 11:31:33 -08:00
Eric Traut
f9f4c34b5e Added new diagnostic check reportUnnecessaryTypeIgnoreComment that emits a diagnostic when a # type: ignore comment has no effect. 2022-01-09 11:16:22 -07:00
Eric Traut
17f37a2482 Fixed a typo in the documentation. 2022-01-06 13:02:31 -07:00
Eric Traut
130c1cc055 Changed type guard logic that involves is operator and literals to be limited to bool and enum literals. It was making unsafe assumptions for other forms of literals. 2022-01-06 09:13:05 -07:00
Eric Traut
4fe3f1f7c0 Improved type narrowing for x == L pattern to include x is L, since they are equivalent. Likewise, extended x.y == L pattern to include x.y is L. 2022-01-05 15:19:37 -07:00
Eric Traut
c09480adb7 Updated CI script to make it clear that the latest pyright version should be used. 2022-01-03 17:43:08 -07:00
Eric Traut
d74b89a758 Added support for new type narrowing pattern: len(x) == L and len(x) != L where x is a tuple or union of tuples and L is a literal integer value. 2022-01-01 13:31:10 -07:00
Eric Traut
046eab4a8d Added support for bool(x) type guard. 2021-12-31 14:23:56 -07:00
Eric Traut
2f616204d9 Added documentation for pyright's overload matching algorithm. 2021-12-13 15:00:17 -08:00
Eric Traut
211ebe44dd Changed class pattern matching behavior to support narrowing of Any or Unknown, exempting this case from the general "never narrow Any" rule. 2021-12-12 14:54:59 -08:00
Eric Traut
50b31d533f Improved documentation. 2021-12-10 00:06:35 -08:00
Eric Traut
c5788d4916 Implemented support for type guards that are based on a local variable that is assigned an expression that narrows the type of the assigned expression. Some limitations apply. For details, refer to https://github.com/microsoft/pyright/blob/main/docs/type-concepts.md#narrowing-based-on-local-variable. 2021-12-09 23:56:44 -08:00
Eric Traut
e267b8adec Improved handling of x in y type guard to handle the case where y is a tuple. 2021-12-08 00:17:46 -08:00
Eric Traut
7e59a19eaa Updated library guidance doc to clarify point of confusion about import forms. 2021-12-01 08:57:29 -08:00
Eric Traut
28d60e62ae Updated command-line documentation for consistency. 2021-11-29 22:31:14 -08:00
Jos Verlinde
8d32784230
extend documentation on JSON (#2635) 
copying the information provided as answer to https://github.com/microsoft/pyright/issues/2634
 2021-11-29 13:20:41 -08:00
Eric Traut
ed84eb7b36 Changed reportPropertyTypeMismatch to be disabled by default in all diagnostic modes. 2021-11-27 17:08:01 -08:00
Eric Traut
280d95cd80 Updated documentation for reportUnusedVariable. 2021-11-24 16:05:53 -08:00
Elijah K
c70cee87ea
Update configuration.md (#2519) 
Links the description of the `executionEnvironment` option. Would have partially prevented a question in #2518.
 2021-10-30 11:09:25 -07:00
Eric Traut
cc7216e66e Changed text representation of inferred type of self and cls parameters to Self@ClassName. This is more consistent with the emerging standard for an explicit Self type. 2021-10-29 21:21:32 -07:00
Eric Traut
ef773d2407 Added "--skipunannotated" option for command-line version of pyright. If specified, pyright skips type analysis of functions and methods that have no parameter or return type annotations. Return types of functions are also never inferred from the function implementation. This matches the default behavior of mypy and allows for more efficient analysis of complex code bases that are only partially annotated. 2021-10-22 23:17:29 -07:00
Eric Traut
3fbb23a5c4 Fixed typo in command-line docs. 2021-10-15 10:01:29 -07:00
Eric Traut
5f0317229c Updated documentation for pythonPlatform to include "All". 2021-10-15 09:43:28 -07:00
Eric Traut
9976ff0436 Fixed a misleading statement in the documentation about the strict config setting. 2021-10-14 14:56:49 -07:00
Eric Traut
38bd56b130 Clarified directory for tests 2021-10-12 00:10:29 -07:00
Eric Traut
06c69907fe Added instructions for running tests. 2021-10-12 00:06:34 -07:00
Eric Traut
1cbb690b11 Added support for new type guard pattern: x[I] is None and x[I] is not None where x is a tuple or union of tuples with known lengths and entry types and I is an integer. 2021-10-06 22:48:14 -07:00
Eric Traut
ff55b895f9 Added new diagnostic check "reportMissingParameterType" that checks for function and method input parameters that are missing a type annotation. 2021-10-06 21:55:12 -07:00
Eric Traut
6107de9090 Added new "--warnings" command-line option that generates an exit code of 1 if one or more warnings are emitted. By default, only errors generate an exit code of 1. 2021-10-06 20:12:15 -07:00
Eric Traut
dbe41fa4d2 Made a few small improvements to the documentation. 2021-09-26 12:10:05 -07:00
Eric Traut
3fa5299614 Changed code that converts types to textual representation to prepend a tilde ("~") character for the inferred type of a "self" or "cls" parameter. 2021-09-24 20:01:48 -07:00
Eric Traut
14ad02575f Extended reportCallInDefaultInitializer diagnostic check to disallow list, set or dict expressions in default argument expression. 2021-09-16 21:22:31 -07:00
Eric Traut
9035f64c71 Added reportPrivateImportUsage diagnostic rule, which reports usage of a symbol from a py.typed library that is not intended to be re-exported by the library's author. The rule is on by default in basic type checking mode but can be disabled. Completion provider no longer offers these symbols as completion suggestions. 2021-09-12 01:10:57 -07:00
sasano8
a1ebf82bb8
Ambiguous tuples become as specific as possible. (#2291) 
The rationale is as follows.

>Tuple Expressions
>When inferring the type of a tuple expression (in the absence of bidirectional inference hints), Pyright assumes that the tuple has a fixed length, and each tuple element is >typed as specifically as possible.

```python
# The inferred type is Tuple[Literal[1], Literal["a"], Literal[True]]
var1 = (1, "a", True)

def func1(a: int):
    # The inferred type is Tuple[int, int]
    var2 = (a, a)

    # If you want the type to be Tuple[int, ...]
    # (i.e. a homogenous tuple of indeterminate length),
    # use a type annotation.
    var3: Tuple[int, ...] = (a, a)
```
 2021-09-10 12:27:42 -07:00
Kyle Kovacs
ad0e8acf14
Add missing strictSetInference option to table (#2263) 
The `strictSetInference` row was missing from the Diagnostic Rule Defaults table.
 2021-09-03 15:44:28 -07:00
Eric Traut
2202af33a7 Improved readability of docs. 2021-08-30 09:44:14 -07:00
Omer Tuchfeld
9edf6d2d1a
Fix docs/configuration.md misleading case sensitive Pyproject.toml typo (#2238) 
Creating `Pyproject.toml` as it is currently shown in the docs title will not work,
because the file name is case sensitive. It should be exactly `pyproject.toml`
 2021-08-28 07:37:25 -07:00
Denis Eliseev
475a44273c
Update type-concepts.md (#2230) 2021-08-26 08:33:12 -07:00
Eric Traut
0bf45ea2ed Added support for new type narrowing pattern for discriminating among tuples. The pattern is V[I] == L or V[I] != L where I is an integer literal, L is another literal value, V is a tuple with a known length and a type at index I that is declared as a literal type. 2021-08-06 23:17:21 -07:00