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Empty zip objects error on __len__ #834

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kg583 opened this issue Mar 10, 2024 · 2 comments
Closed

Empty zip objects error on __len__ #834

kg583 opened this issue Mar 10, 2024 · 2 comments
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bug resolved
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v3.1.1

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@kg583
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kg583 commented Mar 10, 2024

Getting the length of an empty zip object (e.g. len(zip())) raises

ValueError: min() iterable argument is empty

since the length is computed as the minimum length among the iterators, but no default value is set.
@neel11235813
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I have faced a similar issue as well

@evhub evhub added this to the v3.1.1 milestone Mar 11, 2024
evhub added a commit that referenced this issue Mar 11, 2024
@evhub
Fix min and max
2566839 
Resolves   #834.
@evhub
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evhub commented Mar 11, 2024

Fixed as of coconut-develop>=3.1.0-post_dev3 (pip uninstall coconut && pip install -U coconut-develop>=3.1.0-post_dev3). Also universalizes default= argument for min and max built-ins.

@evhub evhub closed this as completed Mar 11, 2024
@evhub evhub mentioned this issue Jun 8, 2024
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evhub added a commit that referenced this issue Jun 9, 2024
@evhub
Release v3.1.1 (#842)
ac70b14 
See Coconut's
[documentation](http://coconut.readthedocs.io/en/develop/DOCS.html) for
more information on all of the features listed below.

Language features:
* #833: New `case def` syntax for more easily defining pattern-matching
functions with many patterns.
* #811: New `f(name=)` syntax as a shorthand for `f(name=name)`,
replacing the now deprecated `f(...=name)` syntax.
* #836: New `CoconutWarning` built-in used for Coconut runtime warnings.

Compiler features:
* #837: Coconut will now warn about implicit string concatenation and
disable it completely with `--strict`.
* #718: Coconut will now warn about use of `addpattern def` without a
prior `match def`. This was a previously-supported feature to make
pattern-matching functions with many patterns easier to write, but the
new recommended way to do that is now via `case def`.
* #785: Initial [pyright](https://github.com/microsoft/pyright) support
via the `--pyright` flag.

Bugfixes:
* #839, #840: Fixed some f-string parsing issues.
* #834: Fixed `len` of empty `zip` objects.
* #830: Improved use of colored output.
* #757: Improved PEP 695 support on Python 3.12.
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