pylinqext

pylinqext is a package for C#er to write code like LINQ.

Usage

from pylinqext import pylist
from pylinqext import enumerable
  
e = enumerable([1,2,3,4,5,6,7,8,9,0])
  
e.where(lambda x: x % 2 == 0)\
        .select(lambda x: x * x)\
        .where(lambda x: 30 < x)\
        .to_pylist()\
        .for_each(lambda x: print(x))

Output:

36
64

from pylinqext import enumerable, pydict

d = pydict({1:1, 2:4, 3:9})
d.items()\
    .where(lambda x: x[0] >= 2)\
    .to_pydict(lambda x:x[0], lambda x:x[1])\
    .for_each(lambda k,v: print(f"key={k},value={v}"))

Output:

key=2,value=4
key=3,value=9

Install

pip install pylinqext

Version

• v0.0.1-alpha
  • first commit
• v0.0.2
  • implement single, aggregate, etc
• v0.0.3
  • readonlylist, some methods
• v0.5.0
  • rename project to pylinqext
• v0.5.1
  • enumerable
    • implement to_pydict()
  • pydict
    • items() / keys() / values() return pylist
    • copy() return pydict

class

• enumerable
• pylist
• pydict
• pyreadonlylist

Support

〇：implemented
△：not implemented
×：not suppot

Support	Method	Memo
〇	aggregate
〇	all
〇	any
〇	append
〇	as_enumerable	implemented to pylist
〇	average
×	cast
〇	chunk
〇	concat
〇	contains
〇	count
×	default_if_empty
〇	distinct
〇	distinct_by
〇	element_at
〇	element_at_or_default
×	empty
〇	except	named:set_difference
〇	except_by	named:set_difference_by
〇	first
〇	first_or_default
×	group_by
×	group_join
〇	intersect
△	intersect_by
〇	max
△	max_by
〇	min
△	min_by
〇	of_type
×	order
×	order_by
×	order_by_descending
×	order_descending
〇	prepend
〇	range
〇	repeat
〇	reverse
〇	select
〇	select_many
×	sequential_equal
〇	single
〇	single_or_default
〇	skip
△	skip_last
〇	skip_while
〇	sum
〇	take
△	take_last
〇	take_while
×	then_by
×	then_by_descending
×	to_array
〇	to_dict
△	to_set
〇	to_list	use to_pylist to write method chain.
×	to_lookup
〇	to_readonly_list
〇	union
△	union_by
〇	where
〇	zip