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Based on the pipe library, adding more utilities and pipes to it
Some pipes are inspired by other programming languages (eg Rust)
pip install morepipes
Consume iterable
range(9) | where(lambda x: x % 2) | collect
# List of odd numbers
Cut iterables
range(9) | take(5) | drop(2) | collect
# [2, 3, 4]
Remove duplicates
a = [1, 3, 3, 1, 2, 4, 4, 2, 2, 2, 1, 4, 4, 3, 3, 1]
b = a | squeeze | collect
# [1, 3, 1, 2, 4, 2, 1, 4, 3, 1], remove consecutive duplicates
c = b | unique | collect
# [1, 3, 2, 4]
Manipulate iterations
range(9) | chunks(4)
# [[0, 1, 2, 3], [4, 5, 6, 7]]
range(9) | alternate
# [0, 2, 4, 6, 8]
Side effects
range(9) | ... | inspect | ...
# Prints out each object received on evaluation
Or, more generally
range(9) | ... | foreach(print) | ...
There's also bindings for builtins and itertools
[1, 2, 3] | combinations(2)
[1, 2, 3] | permutations
[1, 2, 3] | cycle
[1, 2, 3] | imap(iseven)
[1, 2, 3] | isum # 6, equivalent to sum([1, 2, 3])
[1, 2, 3] | iall(iseven) # equivalent to all(iseven(x) for x in [1, 2, 3])
[1, 2, 3] | iany(iseven) # equivalent to any(iseven(x) for x in [1, 2, 3])
[1, 2, 3] | ilen # 3, equivalent to len([1, 2, 3])
isum
, iall
, iany
, ilen
is useful when working with long pipe chains (no messy parentheses)
Creating a partial pipe
reverse_sort = P | reverse | sort
# P is a special object placeholder
Using a partial pipe
[1, 3, 4, 2] | reverse_sort
# Just like any other pipe
# Strictly equivalent to:
[1, 3, 4, 2] | reverse | sort
# as if P is replaced by [1, 3, 4, 2]
Have fun!
pipe
library)chunk
for sequences (supports slicing)FAQs
Extended pipes for functional programming
We found that morepipes demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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