43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
# zip
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{:.no_toc}
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<nav markdown="1" class="toc-class">
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* TOC
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{:toc}
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</nav>
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## Top
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Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
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## [zip](https://docs.python.org/3/library/functions.html#zip)
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```python
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zip(*iterables, strict=False)
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```
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> Iterate over several iterables in parallel, producing tuples with an item from each one.
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```python
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a = zip([1, 2, 3], ["sugar", "spice", "everything nice"])
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print(a) # -> <zip object at 0x7f34987f4380>
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for item in zip([1, 2, 3], ["sugar", "spice", "everything nice"]):
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print(item)
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```
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Output:
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```python
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(1, 'sugar')
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(2, 'spice')
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(3, 'everything nice')
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```
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> More formally: zip() returns an iterator of tuples, where the i-th tuple contains the i-th element from each of the argument iterables.
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> By default, zip() stops when the shortest iterable is exhausted. It will ignore the remaining items in the longer iterables, cutting off the result to the length of the shortest iterable
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> zip() is often used in cases where the iterables are assumed to be of equal length. In such cases, it’s recommended to use the strict=True option. Its output is the same as regular zip(). Unlike the default behavior, it raises a ValueError if one iterable is exhausted before the others.
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