Skip to content

Instantly share code, notes, and snippets.

@dosht

dosht/styles.py

Created August 30, 2014 19:07
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save dosht/3b45123360940857aef9 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save dosht/3b45123360940857aef9 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. dosht revised this gist Aug 30, 2014. 1 changed file with 2 additions and 1 deletion.
    3 changes: 2 additions & 1 deletion styles.py
    View file
    Original file line number Diff line number Diff line change
    @@ -37,4 +37,5 @@ def reduce_func((males, females), user):
    lambda (ms, fs), u:
    (ms, fs + [u]) if u['gender'] is 'f' else (ms + [u], fs) if u['gender'] is 'm' else (ms, fs),
    users,
    ([], []))
    ([], []))

  2. dosht created this gist Aug 30, 2014.
    40 changes: 40 additions & 0 deletions styles.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,40 @@
    # Partition the following data into 2 lists: males and females
    users = [{
    "name": "user_%s" % x,
    "gender": 'f' if x % 3 is random.randint(0,3) else 'm'
    }
    for x in range(1, 100)]

    # Which way do you prefer?

    # 1
    males, females = [], []
    for user in users:
    if user['gender'] is 'm':
    males.append(user)

    if user['gender'] is 'f':
    females.append(user)

    # 2
    males = [u for u in users if u['gender'] is 'm']
    females = [u for u in users if u['gender'] is 'f']

    # 3
    def reduce_func((males, females), user):
    if user['gender'] is 'f':
    return (males, females + [user])

    if user['gender'] is 'm':
    return (males + [user], females)

    return (males, females)

    (males, females) = reduce(reduce_func, users, ([], []))

    # 4
    (males, females) = reduce(
    lambda (ms, fs), u:
    (ms, fs + [u]) if u['gender'] is 'f' else (ms + [u], fs) if u['gender'] is 'm' else (ms, fs),
    users,
    ([], []))